99 Years Later... We Solved It
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- čas přidán 30. 03. 2022
- How do these rocks move on their own in the desert?
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It's so impressive how the pioneers managed to ride these for miles
Underrated
😂😂😂
It's Iraq
It all makes sense now 🤣
@@UnKnOvvNPeRsOnA 😂
I had a book growing up called 'why does a ball bounce and 100 other questions' that was full of physics questions and these stones were in it! It was the only question that didn't have an answer and that always bothered me 😂 now, about 20 years after first reading about them, you have provided the answer. That book was one of the reasons I got into physics and I'm so glad the mystery has been solved. Makes my heart happy in so many ways 😊
This so heartwarming ❤️
Rubbish
That's nice. Every question will get answered eventually.
@@linkonmazumdar8155 k
Now you can go to sleep.
I only discovered this channel when the update about your health, done by your friend, came up in my recommended feed. I'm so sorry you're going through such a terrible time and just wanted to thank you for all these wonderful videos. I'm sorry I didn't find them before now! I can't subscribe to your patreon right now so I'm letting all the ads play, watching your videos, in the hopes that every little bit of revenue helps. All the best, Diana, I hope you get better soon xxx
I am with you on all counts!
😂😂😂 clout chasers getting karma woth bad health😂😂😂😂 she deserves all the health problems she has for clout chasing😂😂😂
Yes same, I just watched Destin’s video about her story and I did the same. Subscribed and watched as many videos as I could to help. Just shows you never know what can happen in life…
Same I go through and watch a few videos every week or so. I'm glad so many of us are hanging around to help however we can
Those are the children/nephews of my geology professor (Dr. Robert Norris). He studied those rocks for decades. I'm surprised he wasn't mentioned. His hypothesis was wind-blown ice sheets, also.
If they did any research they ignored the facts they came across. They did not find any research they wanted to mention. This video is a lie and a sham. And they fooled CZcams READERS and other FOOLS like you. Seems FACEBOOK and GOOGLE employ members of the CHINESE COMMUNIST PARTY so why not here.
It's thin ice and the wind. I just saved 13mins of your life.
Yes..... it does take its time. On to the next!
Thank you this documentary was boring af
Thanks Tony I owe you lol
Thx. I really was getting desperate.
thanks tony fisher!
I did a report on this over 12 years ago in college. The ice sheets with wind was the theory I believed the most. So it's cool they finally got evidence
They've had evidence for decades this is nothing new I learned about this when I was 10 years old in class.
Im sorry to inform you but everyone is dead wrong. These are obviously peoples abandoned pet rocks from decades ago
@@cleanearth6238 CREAMPUFF fails to mention they were born in 2010 so their comment isn't that impressive either
It's the wind that pushes the ice into the land. Those photos were off Mille Lacs Lake in Minnesota I live there. It's not really that cool it's dangerous. Destroyed alot of homes and sounds like a train!
Yes, this was the consensus, yet undocumented in the literature. Fascinating subject!
I recognized that ice as soon as it showed it on screen it made sense to me. I live in Michigan and ice like that covers the shore some years
You're right! Anyone who has played in the sand or in a lake knows perfectly well that stones move if they "float" on a layer of water and leave such traces, wind or tides are incredibly basic and simple answers, I can't understand how it has taken them so long to prove it with a scientific experiment. We must have made some progress...
Apparently not enough scientist did research on the weather in death valley on a seasonal basis. Seems like that was the missing ingredient.
@@lgcisaacb.l.326 An enormous amount of gaps in scientific knowledge and well, just general knowledge, are the lack of communication. Millions of people on this planet know things that, to them, are just basic, unremarkable parts of how the world works. "It's not worth telling anyone about. Doesn't every know that?" And at the exact same time, there are people poring over problems, looking for data, trying to find connections in all the wrong places....that would _immediately_ be solved if they knew other folks had seen that problem play out in nature/at their job/in the real world.
But that's just not how it works. Too many people. Too much world. People are small and their experiences and connections are limited. The times that such things _do_ happen and people come forward with data or proof that makes a previously unsolvable paradox completely mundane are pretty famous, and for good reason. It just doesn't happen much.
Or, well, it didn't use to. Nowadays it happens a lot more often, cause people post questions online and then some dude from the middle of nowhere goes "Huh. I know a place that happens all the time" And research happens.
Sending all my love to you guys. Can't wait to see you back sharing learning and knowledge!
Id like to imagine the rocks just Tokyo drifting across the race track and suddenly stopping when people observe them lol
Andy's Coming
Don't BLINK!
"GAS GAS GAS oh wait people are watching we should stop"
𝄞 DEJA VU 𝄞
people should record it for months and then speed up
That video of the rocks moving is pretty spectacular. I wouldn't have believed it could be ice till they filmed it. Crazy dedication.
Now you gotta make a rock render
@@yourmom6351using Rock essentials
Doing your anvil tutorial :P
It's probably some magnet or some machine underground.. Aliens?
Well, the lack of friction atop the ice is what makes it all possible. After all, how else could we skate with such ease?
Though, I certainly never thought about it either even if I knew it was possible.. 😅
I discovered "Physics Girl" just today and watch several videos when I came upon this one. When I was a child (in the sixties) my parents took us on a trip to Death Valley. I remember a wooden sign at the "Race Track" stating it was believed the rocks moved due to water and wind. Having seen many accounts through the years by people amazing at the rocks I would always think to myself "Of course these were pushed by those forces". Not that I had any brilliant thoughts about them, but having been there, I contemplated and observed thinking this now proven theory makes perfect sense. I love it when science proves what attention and "common sense" tells us. I look forward to many more of your vids. Thank you Physics Girl
Great job on the creation of a well-told story. It is so easy to drift off into the land of dry and dense on STEM topics. This effort is great example for others to follow. Nicely done!
As a young boy back in the 50s my Grandparents had a cabin on the Saltin sea one year the lake was very low and I found a rock that left a trail in the mud. The rock was so large I couldn't move it. I showed my Grandad and he couldn't explain it. I wished he was alive so I could share this with him thank you for sharing ❤
How old are you
@@dessichan2828 lol can you not do math? if he was a young boy back in the 50s so like '55 and a like 8yrs old he would be around 75 years old
@@user-rn7ne2di8i lol what? That's rude.
@@user-rn7ne2di8i some people can’t do math, they are probably not over the age of 12 i assume. so you don’t have to be mean.
@@bradentheman1373 youtube requires you to be over the age of 13 also i didn’t try to be mean I was asking a question
I saw them in 1976. I assumed either the wind was pushing them on very slick sediment that got wet. Or, they were frozen in shallow water ice floes and floated, pushed by wind. I worked at the Nevada Test Site and the dry lake sediment I had to deal with was slick as snot when wet. And I had seen ice move on the frozen dry lake beds. Never put together the gooey silt PLUS the ice. WAY COOL.
I guess some places never change.
But they explained at the end, it doesn't require a slick base like gooey silt... the wind pushing on that large sheet of ice produces forces stronger than bulldozers that would move the rocks even in a high friction environment.
Working at the Nevada Test Site also sounds way cool, in a way. Uh, any stories?
That's what I love about experiments, you need to have all the data require for events to take place, in this case it was the time of year.
Ugh .. WOW
I remember reading about this phenomenon in a book about the paranormal in 2013, and I see this video solving it! Thanks for making it :)
Thank you for doing such an in depth and thorough job on this video. I've always been fascinated by this mystery and you have presented the answer in a comprehensive way. And your footage is spectacular! I have subscribed🙂🙏
I took a Geomorphology class at NAU a few years ago, and we were on a week long field trip in Death Valley. On our last night, we camped in a playa outside of the park. When we got there, we ran into these two when they kindly asked us to make sure we weren't doing donuts in the playa where they were about to film a german documentary for PBS. They were incredibly nice, and even showed us their GPS equipment that they used to track the rocks, and gave us an explanation of the whole process. I recorded a video of their talk and have been meaning it to upload it to CZcams ever since. It was SO cool to be in the presence of the actual scientists who discovered this mechanism.
You should definitely upload it! This is a really cool story! (In the literal, non-sarcastic way, haha.)
If he was truly concerned about the future of the Free World, he wouldn't be making such inflammatory remarks.
Anyone doing donuts out there should be locked up for life.
@@savage22bolt32 By doing donuts, I mean we were driving our school van in a circle lol We're all geology students, we appreciate and respect the environments we're there to study.
It was already discovered. I saw that on tv like 20 years ago
I remember learning about this years ago. I love this experiment because it’s a great example of humans trying to make sense of evidence found. As much as we think outside the box, sometimes we just need to sit and wait and let nature teach us a few things.
Very well put
Yes. My Dad called it "Hide and watch".
Reported this video for plagiarism.
Here is a video from 7 years ago explaining the phenomenon
czcams.com/video/89-AFHieDpM/video.html
It's not good to pretend you are the FIRST to discover something.
If you want conducts new experiments to re-confirm or disprove a confirmed fact that's fine. But you should make it clear in the beginning of your video you are NOT the first person making the discovery.
I'll save you guys the time of watching this video. The rocks are moved by hordes of small mice.
@@mortgageapprovals8933 not all heroes wear capes
Wow, I had only heard of this thanks to you guys and CZcams, and thanks because it's very interesting! It's amazing that a bit of ice, water, and wind can push even really big rocks like this without the wind having to be tornado- or hurricane-force! And what else is interesting is that someone tried really hard to solve this curiosity even though it wasn't causing a problem while staying unsolved. Thanks for sharing!
Get better please!
I have long COVID. Pretty bad. It's been four years and the fatigue is still crushing. Dianna has worse fatigue than me. I am getting better though. Like, 1 percent every 6 weeks. It's at this point I’m supposed to say, we will get better! Keep going Dianna! No. It's an unimaginable, insufferable grind.
I remember reading about this in the early 80's with a friend I hung with. We thought it was ice and over the years I had thought had been confirmed a long time ago. We grew up on the shore of Lake Champlain and watched the ice do lots of powerful things.
Me too. Ferrisburg vt......
@Roger Well of course, they HAD to have Arnold play Mr. Freeze. Nobody else could control it.
@@brianbrady4496 small world. North Ferrisburgh here.
Charlotte VT
Yeah all that ice they get out there. 🤦♂️
I remember hearing about rocks being moved by icy winds on salt water dry lakes because the wind would hit one side of the rock, freeze the water on that edge, the ice would expand and lift the rock, then more ice would get under it and eventually it would be enough to lift the rock and move it a tiny tiny bit. Then the ice would melt and the rock would have moved and no one knew why
Thanks
what would happen is it would rain, freeze the ground, then rain again with wind, and the rocks would start to glide on top of frozen ground, leaving a trail
@@shamalamadingleberry7203 good theory but one major flaw: if the ground is frozen, there would be no trail
@Daniel McLellan the water is frozen, the rocks get locked into it due to being connected by the frozen layer, then the whole frozen later gets pushed by wind and the drag marks are left behind, the freeze melts, the water evaporates and you have these tracks where the whole areas rocks all have same angles...implying that they were connected by that frozen layer and moving together with that frozen layer.
This was the explanation for the rocks in this video for many years
What most puzzling to me is the weight of the rocks and how it only takes very little to actually move them. You’d think they’d stay put because of their weight!
It’s actually pretty believable think about how a vehicle can hydroplane on the road with just a small amount of water cover or even how thin ice forms in the winter on bridges that traverse over bodies of water where vehicles just loose control and slide around.
The actual surface of the lake bed is under water and becomes malleable allowing the rocks to slide over it. This leaves the marks showing the paths that the rocks took while leaving the surrounding surface untouched/unmarked.
You can move tons like a railcar with just a rope if the friction is low enough like steel wheels on steel rails as opposed to rubber wheels on asphalt.
@@eddierodriguez3472The car becomes a hockey puck but with way more inertia. Once the car starts to slide in a direction, it will continue in that direction. Gives a whole new meaning to being on “thin ice.” I’m thinking thick ice is just as slippery but you won’t fall through.
That's amazing! I was there in 1997/1998 and visited The Racetrack, and had heard about the moving rocks before going there. It was incredible to see them in-person, and now it's good to know what caused their movement!
This is so amazing to me. I remember years ago learning about the sailing rocks. The "latest science" was that it was wind that pushed the sailing rocks across the play. I think it was in the 1990s. Back then, in the documentary, I remember that they ruled out ice. Really awesome that 30 some years later they determine it was ice and wind.
This was already solved. These people did nothing.
My first thought was ice. A bit like how glaciers move by ablation
This news is like 20 years old now
I remember traveling through Death Valley on vacation with my family and being really fascinated by the phenomenon! Really cool to see a conclusion to a scientific mystery that I've seen in person!
@I'll say when it's time shut up
? most people driving through will not see the racetrack playa.. its quite out of he way.
@@byloyuripka9624 shut up
It's an April fool's joke
@@byloyuripka9624 Not a direct drive though! We absolutely did go out of our way!
Fascinating! Thank you for investigating this phenomenon for all of us to learn about, Dianna!
I hope you’re doing okay Diana you're video popped up on my feed and I remembered what happened to you and just wanted to say I hope you’re doing OK. I hope you can fully regain you’re strength and happiness again ✌️❤️😉🙏
Living in the land of ice near the northern part of the Great Lakes we witness a number of unique ice events. Including wind driving the spring ice amazing distances with perceptible speed along with great force. Separately a Friend of ours has a rock quarry that upon occasion seems to let some large rocks travel as much as a hundred yards without any apparent provocation. Always in the cold season and a bit slower than walking speed. These rocks, sometimes the size of a VW, are usually relatively flat bottomed and move while the ground is frozen with no visible pitch to the ground. One of these rocks weighed close to 50 tons(we know because we were unable to lift it with a 50-ton crane). lce and gravity, amazing stuff.
The images of ice being pushed up are actually from a couple years ago on the shores of Lake Mille Lacs in MN. The ice can pile 20+ feet high when the wind picks up during Spring melt. Lot's of videos on CZcams - search for Ice Tsunami
why dont they just time lapse
@@zeuxlaught2797 Even if 1 4kx3k pixel picture (you need the resolution to cover a large area) took 1 megabyte, it would have cost 31,5 Terabyte of data for 1 full year if you took 1 picture per second. Next you need probably several camera's that can resist the enormous temperature differences (think about the batteries where you would need to store the sunlight generated power into), and they started this experiment in 2014(?), so think of the tech available of back then. The tech probably was available, but likely prohibitively expensive for this project about mysteriously moving stones that are of no commercial value.
I wish we had snow and ice :(
You have to go to Australia's higher "mountains" (above 1,200m) to see snow here. 80% of our country resembles Death Valley.
Cool story. Thanks for sharing.
I remember reading about this when I was very young (possibly at school), I'm nearly 60 now. It's great to finally hear the explanation (I missed it between 2014 and now), still it's good to get closure. Thanks physics girl.
Reported this video for plagiarism.
Here is a video from 7 years ago explaining the phenomenon
czcams.com/video/89-AFHieDpM/video.html
It's not good to pretend you are the FIRST to discover something.
If you want conducts new experiments to re-confirm or disprove a confirmed fact that's fine. But you should make it clear in the beginning of your video you are NOT the first person making the discovery.
@@mortgageapprovals8933 Well she does clearly say that the Norris brothers solved the mystery in 2014. I don't really know anything about plagiarism laws but I'd be surprised if simply re-telling a story would count as plagiarism. I watch such channels as Anton Petrov, Dr. Becky, Everyday Astronaut, Scott Manley and this one. Many times they have overlapping reports of the same discovery without any issue of plagiarism.
I've always heard of these "moving rocks," but never knew why they did that. Thanks to you (and that 13 y.o. girl) it's a
mystery no more. Great video!
I remember as a kid, seeing this on a National Geographic show thinking that it must be wind. They said the rocks were very heavy. I found it very interesting and nice to have the mystery solved.
Just before Easter in 1986, I watched a light breeze push the winter ice off Lake Wallenpaupack in Pennsylvania. I walked on to the ice that had reached dry ground and rode it as it slowly pushed ashore, piled up and broke into flimsy shards and ice straws. The ice pushed a huge nearby boulder through the sand and mud, leaving a trench about eight feet wide and three feet deep. I could reach into that rotten ice and crush it so easily in my hand, but the massive force exerted by a light breeze on the surface of a couple of square miles of ice was absolutely unstoppable and awesome to see.
that's awesome.. way more impressive than this video
the literal "perfect storm" of environmental conditions that had to happen at this specific place in the world for the rocks to move is just insane, makes perfect sense that it took so long to figure out
A
I'm sure someone suspected this as the cause but they weren't "accredited scientists" and so their theory was just a crackpot notion.
@@The_DC_Kid dude, they knew this was happening years ago. I watched some video from literal years ago that explained that it was ice...
@@Trigger200284 wayne maybe also references to everything not coming from a "professional", is labeled as what we call wrongly, a conspiracy theory/ theorists these days
People get slapped with irony in stead and not listen too.
Literal?
So it wasn't just raining, but there was a storm?
Do you know what the word, "literal" means?
It's used to distinguish between something figurative and something that actually happens.
For example, the title says, "We" but she talked to the guys who figured it out and is taking credit for what they did.
Communication during an inner turmoil has set up a home in my mind, days or even years later i find myself struggling with how i had failed myself and others in messaging in an appropriate manner, when those situations arise, I've learned to best stay quiet when unsure about how to properly state my thoughts!
Very interesting! I've wondered about those tracks in the sand. This explains it. Thank you.
I think there's one other factor in the rock movement. Notice the picture at 8:51. It appears that in addition to ice forming, the water turns the base into mud, making it even easier for the rocks to be dragged along by the ice.
To the extent they are submerged the rocks will also be significantly "lighter" weight.
I think the greasy mud aspect was a given all along.
Yes!!!
@@Mrbfgray The bouyancy effect is negated by the fact that the density of the rock is much greater than the density of the rock. The ratio of the densities is a coefficient in bouyant force calculations.
@@nobodyknows3180 First, _"the density of the rock is much greater than the density of the rock"?_ Second, *any* buoyancy helps. It's not about lifting these rocks any significant height. Just barely enough to further reduce friction.
the presence of water in the soil, the weight of the rock forming a compressive load on the soil, water could be squeezed out and form a thin film. Much like when ball bearings get lubricated with oil - at operating pressure the oil forms a thin film between the bearing and the race - no actual metal-on-metal contact. Or when an ice skater whizzes across the ice, the narrow skate blades concentrating the weight of the skater into a small area, and this amount of compression liquifies the ice, so the skater is literally hydroplaning at all times.
I'm a retired science teacher and an article about these rocks was in one of our textbooks at some point or, I think, maybe I clipped an article from "Discover" or "Science Digest" magazine and used it in my classroom. I'm not sure now. But this was always something that we talked about and I presented it to my students as a mystery that needed to be solved. I'm so glad to hear that there is a reasonable explanation now! Also, it warms my heart to know that the girl in Germany did a science fair project on this. I always had my students enter the regional and state science fair and my own daughters received college scholarship offers due to science fair!
Error: Winds do not push down against the water as drawn in your seiche event diagram. Rather, winds at a smooth horizontal surface like a lake or lakebed ALWAYS travel horizontally, even in a hurricane or tornado. Your green three arrows of wind should be horizontal, not drawn at a 45 degree angle. Instead, horizontally-blowing wind creates a sheer force with the lakes surface, which leads to a surface current and higher water elevations on the leeward side of a lake than on the windward side.
It's not the dramatically lower pressure which pulls water at the eye of a hurricane upwards, resulting in water levels several feet higher than MSL +/- tide, although it does have some effect. Rather, it's the horizontal surface winds blowing around and towards the eye of the hurricane which drag ocean water towards the center. That warm air then rises in the hurricane's heat engine, fueling the hurricane's activity.
For example, standard day pressure is 29.92 in Hg. The lowest recorded hurricane pressure was 26.0454 in Hg, for a difference of 3.8746 in Hg. That translates to 4.3908 foot of head, meaning it'll draw up 4.39 feet of fresh water. Due to ocean water's higher density, however (1,023 to 998 kg/cu m) that only comes to 4.28 feet of head for seawater.
The rest of the storm surge is ALL driven by horizontal winds!
I just found this Awesome channel! I really hope you feel better. Thank you to everyone that is helping!
My old teacher told me 40 years ago that the surface needed to be wet. The ground is too dry and hard to get those Mark's unless the ground was very wet.
He had no idea why/ how they actually moved though!
It is still not clear why that is happening. They just discovered that ice might play a role and that's all. Without winds and slimy wet sediments nothing will happen. Your old teacher knew quite a bit. How these processes can play, will vary and even if the result is the same. These processes have been described and properly documented in other parts of the world. But...who can trust these US scientists proofs if they don't trust worldwide scientists proofs? Me, nope. Too many braggarts around here claiming credits of something they did not resolve. But, they can keep trying for over 100 years more and maybe a german little girl do it first in one year. They will claim credits anyways...Clickbait!
At 6:13 in the video, several papers are shown. John Reid, the first author of Sliding Rocks of Death Valley: What makes them move? was my advisor at the time (1995); the other authors were fellow students. I was not part of the research team, but as a student at a collaboratively oriented college , I did participate in discussions and making the calculations presented in the manuscript. To my knowledge, it was the first time large scale detailed measurements were made and the required wind shear forces were calculated and resolved with the mechanism of wind shear on a large ice sheets and reduced friction of the rocks on wet mud , and the conclusions were fundamentally correct. Notable in that publication is mapping that demonstrates that rocks moved in groups that would divide into subgroups, an observation that necessitates either ice sheets or divine intervention to accomplish! The contribution of the research by the Richard and James Norris is to irrefutably demonstrate the findings of that research with technology not readily available 25 years ago. It is important to give all credit where credit is due. The contribution of the Norris' work is wonderful, and it satisfying to see the phenomenon that we understood 25 years ago so elegantly proven. I think it would be more accurate although perhaps less sensational to say that they provided the unequivocal proof of research that solved the mystery in 1995. Congratulations to all!
Wow , that's cool
still not really proven
@@CoincidenceTheorist you don't seem to understand the nature of evidence. It's sufficient evidence.
@@CoincidenceTheorist Go there and observe it yourself if you don't believe it to be true.
yes, now we can get back to our lives doing something that actually matters. I hope. It was more than obvious this is what caused it back then. Maybe let's use some more brain cells and build free energy motors to combat the fuel crisis.
I read articles about this mystery when I was much younger, and it's cool to see that someone has managed to solve it.
This was solved in the 1970s because I remember seeing it on tv when I was a kid.
@@alfcalleja2462 - I should note that I am rather old... 🙂
Fascinating. I guessed wind but like everything in life, it's more complicated than one thing. Thank you. Kudos also to the videography. I appreciate talented videographers dedication their work to science. Subscribed.
I've made many trips to Death Valley over the years, and my favorite place is definitely the Racetrack Playa. It's fantastic to see the "mystery of the rocks" solved in this video. I always felt that it had something to do with the playa becoming wet and slippery, but "ice" never occurred to me. I will also say, to anyone who'd like to make the trip, yes, it's long way, and lots of driving, but it's well worth the effort and somewhat life changing. There's an energy that stays with you, when you see the rocks with their long tracks and also see the Grandstand in the distance. One tip, which I learned to help prevent getting your tires punctured on the gravel roads in and around the area, is to take out about 15-20% of the air in your tires. This will soften the tires, and will allow them to flex a bit more when driving over jagged rocks. This flexing, will prevent the rock from puncturing the tire tread. And once back to Stove Pipe or Furnace Creek, you can refill the tires with air, or carry cans of air, which are easily bought at a car parts store. Works great, and I have never had a flat!
In all my vehicles is an air pump that connects to the car battery. I have never had to pump up my own tires, but have helped out a few stranded strangers over the years.
Did you listen to the video? or can you add 99 to 1915? The "mystery" was solved 8 years ago by the men featured in the video, not right now in the production of this video...
I used to fly over this valley while doing low level flights for the Navy. I was always amazed to see the mysterious rock trails from the air. Very cool to learn how they were made!
What did you fly in the U S Navy ? I was an A-6 Intruder plane captain in VA-42, NAS Oceana,Va. Beach Va. from 1973 to Aug. 15,1975. Went to Yuma & Fallon for bombing detachments. Was on Indy, Lex & FDR for pilot quals.
@@dennishayes65 I flew the F/A-18C in the fleet and then F/A-18E and F as an instructor in the RAG
Thanks for the video! I always wondered how the rocks moved.
Finally! Been intrigued by this mystery for decades... so amazing we finally have a rational explanation. Thank you!
It was solved on discovery channel about 2 decades ago.
I live on the shores of Lake Erie. Seiches are somewhat common. They are incredibly powerful and destructive. The lake can rise 8ft in just hours. This seems easy for a mini-seiche.
Yes i live in western ny also and have seen these huge ice sheets being blown up by the force of wind going across lake erie and lake ontario..great to know it can happen in death valley also....i was always curious about this event at that area in our country...i thought maybe it had a magentic effect with the stones and the soil with the wind affecting a push but now im glad to know they found out why and to think ive live near a somewhat same effect in my western ny area thats pretty cool....
Michigan!
growing up in Chicago, we had a few seiches that were initially described as inland tidal waves caused by changes in air pressure which would start the wave rolling to Michigan and the return massively to Chicago, often forcing the closure of beaches and Lake Shore Drive. Back then they were pronounced as SAY-che.
@@tiqva01 We still call SAYsh as well. You may be talking about a meteotsunami which is slightly different than a seiche.
This was wonderful 🤓 What an interesting backstory, setting, and of course the answer itself. Crazy this eluded people for so long. Such a great video.
Okay wth, I just saw you over on cosmic skeptic.
wdym eluded people?
Peeps like indoors when weather is yukky..
czcams.com/users/shortsaiadaP5qU_k?&ab_channel=Terid this is so goood
I think it's bitter/sweet, it's good that we now know why they move, but like a good card trick, the wonder is in not knowing.
Physics Girl is in a very serious way. Any help or donations you can send her would be great.
@Pessoa sem nome Covid is what made her get her chronic illness, not the vaccine
What happened to her?
@@hobbygrg-eudaimoniastudio she has something called long covid, bassicly she cant eat or anything on her own
@@ThePbatemonshe should have got jabbed. That would have helped her. Oh wait.....
@Pessoa sem nome Suffice it to say, no.
Love your presentation and evaluation. Just brilliant
i love how their approach was literally "let's put imposter GPS tracked rocks among these moving rocks to see how they do it"
Referencing the hit game "Among Us"?
You sure it wasn't figuratively ?
😳😳
among us
It's a good thing it isn't ST: ToS episode or the scientists could have been eaten by mobile rock monsters.... though that sandy lake area looked ideal for a sparring match with a Gorn...
So cool to finally be able to understand this mystery. I must have been around 10 or 11 when I first heard about these rocks in Death Valley. There were all kinds of theories but it takes determination to figure some things out and these guys did it! Awesome!
it was known years ago... I just reinvented the wheel let me upload a video....
@@anonymousone6075 yeah we have known this for ages now.
Reported this video for plagiarism.
Here is a video from 7 years ago explaining the phenomenon
czcams.com/video/89-AFHieDpM/video.html
It's not good to pretend you are the FIRST to discover something.
If you want conducts new experiments to re-confirm or disprove a confirmed fact that's fine. But you should make it clear in the beginning of your video you are NOT the first person making the discovery.
@@mortgageapprovals8933 That's youtube for ya
@@mortgageapprovals8933 What do you mean? That video is about the exact same experiment by the exact same people.
Thanks for this, it is a real example of curios and smart person that resolve a question, it can help to explain other situation
I was intrigued as soon as I saw the title and subject of this video, and I have enjoyed this presentation greatly. This is just amazing!
When I started shooting photos at Racetrack in the early 2000s, there were almost no footprints or signs of people disturbing the playa when it was wet. Since the huge social media explosion, and all of the attention brought by the explanation, it's now almost impossible to find rocks without footprints around them. Please - if you want to visit the playa, don't walk on the surface if it's at all soft - your footprints will ruin it for everyone else that comes after you for decades. Kudos to them for solving the mystery, but every time I see something else published about this place, I know it means it will never be the same again...
Honestly, given the place floods and receives precipitation and forms ice sheets, you can't ruin it unless you're actually digging. It's an environment in flux and even some footprint wear will be eradicated and resurfaced relatively quickly. Decades seems like a massive stretch.
@@DaveDexterMusic Respectfully, you might want to do some more reading about the site and the process. Any given rock with a trail moves, on average, every seven to ten years. Rock trails often have more than one event, and so likely go back ten, twenty, or more years. The site floods very infrequently, and the surface is so hard, water (it's not much - it's hard to call it flooding) doesn't "resurface" the site - it doesn't erase trails or footprints. A set of footprints, depending on where they are on the playa, could easily be there for thirty or forty years, or longer, only disappearing very slowly. There are signs at the site asking people not to walk on the wet playa for these reasons.
it does not matter anymore we know why they move. you upset about upsetting the rocks haha?
@@StephenPruitt you realize that no one, and I mean no one at all is going to read this and do what you say right? They’re footprints, not holes. You’re literally deterring people away from going there to preserve mud lol. A Rock will move OVER a footprint.
It’s literally just you being selfish because other people are wanting to visit it, therefore it’s “not the same” for you.
@@nathandrums0 I was already thinking it, and reading his post I was; "Yeah, that seems elementary. Don't walk all over it and leave footprints everywhere if it's soft." Not a big ask. This isn't a typical muddy lake. It's like the ask to not walk on the moss on rocks off trail on Pike's Peak at super high altitudes. It's just a conservation ask. He didn't say don't go there.
The time frames for environmental change are much different in extreme places like this. Much more so than a muddy beach frequented by water, or some moss in the woods at just 500 feet above sea level.
When talking about geology, it's amazing how fast these actually move!
It's like the Indy 500 of rocks.
Well, it ended up being meteorology interacting with geology.
Though I guess that still matches your point, because the meteorological effects on geological environments really is usually very slow.
Considering earth is flying @ 500,000 mph while spinning at about 1,000 mph at the equator.
It's amazing anything can hold on!
Like the big Stones in the Netherlands and North Germany. They build "hunebedden" with them.
Huge graves.
Ice is powerfull.
Great story!
Richard and James are so humble :)
12:00 yeah he's right. Saline water is more dense than non saline water and this demonstration has already proven it only takes millimeters.
So a very thin layer of fresh water may form on the surface which would be more than capable of moving exposed stones.
It never move water make the mark they think they move but did it a desert 🏜️ can’t move ppl just past by it thinking that till some one make a video out of it but the place make a illusion on there eyes just water passing by it nothing els blee hhh
@@ricardoreyes3179 what?
@@ricardoreyes3179 this isnt english
@@ricardoreyes3179 maybe you could use chatGPT to make your comment clearer
@@YEs69th420 I think I lost a few IQ points just reading that.
Once you see the solution you say, "Of course , how simple!" That's good science in action, easy when you know how!
💯
20/20 hindsight
"good science in action" good, because that has not happened enough lately.
@@neovenom9833 I'm curious. Could you be more specific?
You 100% certain this isn't Aprils fools story?
Just totally wonderful. Thank you.
I'm so happy this mystery had been solved in my lifetime
I really appreciate geologist now very personal feeling of knowing something truly interesting
Ice is incredibly strong laterally. Working on a dredging barge I found that 1/8th inch of ice can stop 50 tonnes of tugboat assisted floating steel.
Jesus is coming soon
Are you prepared?
@@chickenfarm665 tf? First prepare yourself and then tell others.
@@chickenfarm665 Jesus called. He said your methodology is sus.
@@simonghostriley25 there is only one way to prepare. Love God above all. That is it.
@@EatsLikeADuck Jesus is calling you💕
Rocks should be free to amble around without their motives being questioned.
😅
Agreed… Rights for Rocks! 😔👊
"rolling stone", or sliding, or...just hang out..👍👍🤣🤣
Why did the stones move and form a racetrack?
To get to the other side!
@@vigilantcosmicpenguin8721 Q. Why did the PowerPoint presentation on geological mysteries cross the road?
A. To get to the other slide.
You know, I'd like to see the 13 year olds experiment myself. Anyone have a link to her experiment?
I used to go to Death Valley with my dad when I was a teenager and that was definitely an odd thing. My dad was being a dad with all of the answers, .. but couldn't explain that one. Thank you for posting this physics girl!
In Kansas there is a place called monument Rock. I was there after it snowed. I noticed the snow would roll up the monument. Me and a buddy figured maybe the monument rocks were actually at a slant or something. But never could figure out why the snow would literally roll up into like a snow log and roll up the monument on their own. It was wild
this is an wonderful finding! 👏😌
a*
a*
Ok, but grammar please?
@@loturzelrestaurant 🤫
@@bugsy742 It can only help, can it?
I remember seeing these rocks in books as a kid. Great to find out why 🙏
I remember seeing this same explanation on tv like 20 years ago. It wasn’t a mystery anymore
Yo Ash! Cool to see that you watch these vids:) Big fan of yours
My theory was that a mischievous family had been doing this for generations. Sneaking around covering their tracks after moving the rocks each night. Glad to find out the truth. Unless we all underestimated the family's sneakiness.
Ice, wind and water.. It's been known for a very ling time. I am 45 and I learned this when I was a kid.
@Gert Pacu right, they act like they have just recently found out why these rocks move. Ive known this about 25 years myself, i watch some show about it
I could listen to Richard speak all day long. Intelligent, humorous yet polished delivery all at the same time.
Aristotle: "These stones want to move elsewhere but they are old and slow".
Yeah Dianna is back!! 20 seconds in I had to pause to say thanks for all of the interesting (and well constructed) content you've put out over the years.
Just as long as avoids shilling climate change nonsense for Klaus Schwab
@@kayakMike1000 Another pseudo-intellectual who stakes an opinion that is contrary to the vast majority of experimental data and scientific consensus, aye? So you have your own research available for me to analyze? I am open minded after all, I do not believe I am more enlightened than anybody else.
I always find this sort of mentality to be utterly absurd, particularly from people with no background in science. Pursuing my education is the hardest thing I have ever done; basically every waking moment in my life is spent researching my field and growing as an engineer. Even still, I am not going walk up to an auto mechanic and tell them they are fixing vehicles wrong, you know? The universe is so incredibly vast and complex; and at it's core, increasingly abstract and unintuitive. People dedicate their ENTIRE lives to explore an infinitesimally small sub-section of reality that calls to them. If you aren't walking the walk, let the professionals handle it.
@@topherthe11th23 Literally every single thing he says about it are kidding me
So glad I found your channel! Really interesting. When I was 15 years old, very interested in sailing and boats, my uncle asked me 'if a ship is made out of steel, how does it float?' I couldn't really answer him at the time. I learned about displacement later, while studying boat design. Looking forward to watching more of your videos.
Accidentally stumbled on to this video and channel. I'm hooked and subscribing to Physics Girl. Everyone in this video is really cool. Even the rocks.
Get well soon
My Geology professor Dr. Stanley at Fresno State solved the mystery in the 50s. He showed our class his research in 1963. It was the same explanation as given in the video. He solved the mystery without any of the modern technology used here.
I remember hearing about this explanation back in the late 80s. They present it like brand new info in this video.
It was undocumented in teh literature
It’s obvious the history of study on this topic is a lot older than this video is presenting. Sad that it’s being presented as some new and astonishing phenomenon…
I took a few geology trips, and a bunch of my own trips to death Valley in the 90s. I remember many different ice theories back then too.
@@bfpierce That's not how science works. They proved it. There were lots of theories out there, of course one is correct
“Its not just a boulder it’s a rock” and “ The pioneers use to ride these for miles” - SpongeBob
Truee. This video fake
@@rodriguezchan9934 wth u saying bro?
"And it's in great shape"
over 50 years ago my Grampa told me it was the wind that moved them when the ground was wet. when the desert ground gets wet it slick as snot
The pioneers used to ride these babies for miles
Seeing them standing there with the sign at the end was so great. So happy this finally got solved, and someone made such a good video about it.
we solved it ages ago this is not a new discovery.
@@rampage3337 did you see the word new in my comment?
Reported this video for plagiarism.
Here is a video from 7 years ago explaining the phenomenon
czcams.com/video/89-AFHieDpM/video.html
It's not good to pretend you are the FIRST to discover something.
If you want conducts new experiments to re-confirm or disprove a confirmed fact that's fine. But you should make it clear in the beginning of your video you are NOT the first person making the discovery.
My father, Allen F. Agnew, wrote his PhD Dissertation on this phenomenon while earning his Doctorate at Stanford University in either 1946 or 1947. Sadly, he died about two years before the actual cause was resolved, finally. Mom and Dad lived near there, in Death Valley, for three summer months, in a small, one-room cabin, while Dad did his research. That is where Mom was given the nickname "Watery Eyes" and Dad earned "Pealy Face". Allen B. Agnew (B for Boy, F for Father, eh?)
This dude wasted his life on researching a fuckin rock that gets moved a few centimeters by water. oh wow how amazing.
@@dustysavage1187 Such a sad life...good luck.
@@dustysavage1187 have you ever actually cared about anyone in your life
@@dustysavage1187 If it was up to people like you, we would still be walking on all fours.
@@TheyCallMeTouchpad This is the best, most adequate insult I've seen yet, hats off !
Pretty interesting. Do you think you guys can perform this in the labs also to mimic what was happening in Death Valley
I always love how things that people couldn't explain in the past, and that generated all kinds of crazy stories to explain them, end up getting solved when scientists carefully study the problem and find a perfectly reasonable scientific explanation to put it to rest.
I recall these rocks being featured on the tv show THE MYSTERIOUS WORLD OF ARTHUR C CLARKE. I do not remember how it was explained but I think it was thought to be the wind. The rocks may also have been on a tv show called IN SEARCH OF. It was hosted by Star Trek's Leonard Nimoy. A commenter below said the rocks were also in an UNSOLVED MYSTERIES episode.
Wind and ice
shatner's weird or what
It was on both. These rocks are classic 'paranormal' objects.
I remember it being on unsolved mysteries in the 90's tho I did see a decent amount of the Arthur C Clark's and think I remember it there too , At any rate I've lived long enough that this used to be a real head scratcher , my theory was some sort of vicious mud formed under the right conditions to cause the rocks to slip away with the wind lol (at least my guess wasn't Aliens am I right)
Arthur was a legend
Outstanding video PG! 👍 I always thought that the high wind/wet playa theory had some holes in it even though a wet playa can be incredibly slippery. I saw moving sheets of ice destroy a boathouse once. Very destructive even at low speed.
I was stationed at Edwards Air Base in the early 1970s which had 2 dry lake beds and the same phenomenon occurred. The explanation then was wind moving the rocks when the rare rains occurred. Similar environment, high desert and very windy.
That was incredible, well told!
I've heard about these mysterious moving rocks several years ago and it has always rattled around in my head about what caused this phenomenon. Thanks for stopping the rattle.
It's not this mystery that has been causing the "rattle". See a professional.
This wasn't anything she solved, this has already been debunked so to say.
@@222MovieMan She never stated she solved it. She just provided video and a source of those who have.
@@Romerro1 Maybe not, but the title is named we solved it....
I mean.. NO. I don't buy this!!! Water flows in ALL directions.. The rocks would be all over the place. The overview picture proves it's some kind of magnet or force underground!!!! They all move in symmetry. Check it out. This is not solved.. Not in my view. . have they even been digging? tell me that someone! How deep did they dig?
Edit: Come on!!! This one is easy.. use a big magnet under a table with magnets ontop of it. Move the big magnet under. The rocks moves in symmetry!!!!
nr2. Pour some water on the table. See if they move in symmetry. A child could figure this out. But this creates allot of other wierd questions now though.. Hmm. How does that work??
So my curiosity didn't disappoint. This was fun.
Thank you!
Looking forward to learning more stuff.
I will continue my rabbit hole in this channel with less caution now.
i saw an ice dam blown up the shore of lake manitoba destroy a small housing development by portage la prarie...or was it lake winnipeg? i cannot be botherd to look it up.
I didn't realize that someone had actually solved it. I live in Michigan I can tell you when the ice comes on shore (as shown in the video) it is amazing what destruction it causes.
They solved this back in the 1800's, it's an ice thing.
9:13
@@AFuller2020 How was it solved in the 1800's when the first account of these moving rocks in Death Valley was in 1915?
I live in Michigan and I want to go see the ice if it’s good this winter
I remember reading about this as a kid! This definitely will help quite a few people sleep better at night lol
This mystery was in Arthur C Clarke show as well
@Tommy Gaming , and then a cat shows up and eats those birds because the little dive bombing poop layers have been targeting the cat's human parent's car, as well as keeping them up at 4 in the morning.
It is a ghost
I mean.. NO. I don't buy this!!! Water flows in ALL directions.. The rocks would be all over the place. The overview picture proves it's some kind of magnet or force underground!!!! They all move in symmetry. Check it out. This is not solved.. Not in my view. . have they even been digging? tell me that someone! How deep did they dig?
Edit: Come on!!! This one is easy.. use a big magnet under a table with magnets ontop of it. Move the big magnet under. The rocks moves in symmetry!!!!
nr2. Pour some water on the table. See if they move in symmetry. A child could figure this out. But this creates allot of other wierd questions now though.. Hmm. How does that work??
Also check out the video titled:
"Find out about the astonishing classified technologies at the South Pole!" Ask dr steven greer about answers. he might know stuff about this??? Ask him... That video reminded me about this subject...
I have visited the playa often for many years and I get how the rocks move to a spot where I get to see them, what I don't understand is where do the rocks go from my one visit to the next year visit? I would think they would all pile up somewhere and would look like the Grandstand! Do they get pushed back to their source of origen?
I've seen this story before but it was so far back in the day that no one knew what was going on I didn't even know but now I do thanks to your video thank you
Hearing the ice explanation, reminds me of when I was installing docks on a local lake. On a calm night a 1/4 inch thick sheet of ice formed. Well when we started in the morning the wind was out of the north, a couple of hours later the wind shifted to the south. We being on the north shore soon seen the ice moving our way. I tried breaking the ice as it moved our way (I'm in the water) and soon I had to get out of the water because it was knocking me over! And soon all the 4×4posts we had pounded into the bottom were getting knocked over!
This was already solved way before these people.
So it´s the friction of the air over a huge area adding up, I just can´t wrap my head around how much it adds up to, but the first point of contact, that is where all the force goes.
Ok I'm biased, but I'm loving the recent geology direction this channel has taken. This was such a cool thing to come to light only very recently, thank you for covering it!
+1. Geophysics! It's a thing!!
Knew the answer over a decade ago. This isn't new.
@@recoveringsoul755 Sorry. Geologically speaking, 10 years is "very recently" though lol
@@testbenchdude the public knew about the rocks being pushed from winds and ice already though, not sure if this is a repeat, doesn't say when it was filmed
@@recoveringsoul755 Well, the paper on _how_ it was moved by ice was published 8 years ago, so most probably, just like the cousins who were there, you had the wrong ice theory in mind. You learned something new after all :) Don't let your arrogance get in the way of enjoying that :)
SpongeBob was right. The pioneers could’ve rode those rocks for miles
Always enjoyed the race track. Cool deal - nice job guys.
I remember debating in several different science classes during school, all the different ways the rocks could have been moved.
Pretty neat that someone finally solved it.