If Earth Was Small, Could You Feel Detail?
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- čas přidán 6. 05. 2024
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We like the think the Earth has a lot of texture: mountains, valleys, trenches, rock, grass, water. But is human touch sensitive enough to detect these features? Let's find out with some scale models.
00:00 Cold Open
00:48 Oblate Spheroids
01:42 Earth's Geoid
02:21 How Tall Are Mountains?
04:03 Failed Scale Models
05:04 Million to One Scale
07:52 Human Touch
09:40 Summary
10:07 Outro
10:43 Sponsor Message
11:50 Featured Comment
Nick Lucid - Host/Writer/Editor/Animator
Vanessa R Bradley - Thumbnail
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LINKS TO COMMENTS
Featured:
• What the HECK is a Pha...
Oblate Spheroid:
• I proved 1.3 million E...
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• I proved 1.3 million E...
• I proved 1.3 million E...
Geoid:
• I proved 1.3 million E...
• I proved 1.3 million E...
• I proved 1.3 million E...
• I proved 1.3 million E...
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IMAGE CREDITS
Denali:
www.nps.gov/media/photo/view....
Geoid:
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Mariana Trench:
oceanexplorer.noaa.gov/okeano...
It would feel noticeably heavy compared to normal rocks. It also would probably explode like a superheated jaw breaker.
well there's some math to chew on for breakfast.
Well who said the earth was shrunk? Maybe our hand got enlarged!
I wasn't assuming the mass stayed the same. Yikes! 😱 It would be pure neutronium!
@@ScienceAsylum LOL loony.
That would be the easy way.
Here I am working out average density of Earth, translating to Orange size, comparing to various rocks in my area, working out what single element would weigh the same as earth. . (yeah I got lost having fun)
well it has to be about 1mm to be a black hole, so it’d be neutronium
I really love people's expressions when they learn just how sensitive human fingers are
u should have said "impressions" 🤣
PG-13 - Over several millennia, a 'close' couple in the dark could explain how sensitive human fingers are. No surprise about the study results.
And the tongue is even more sensitive
Amazing thing considering everyone has... fingers
Honestly I'm struggling to believe 13nm, we're talking about a handful of atoms at this point.
The earth is roughly as smooth as a billiard ball, and billiard balls feel perfectly smooth to me.
I remember as a kid seeing a museum exhibit with a huge wall-sized map of Lake Michigan and it said at this scale the depth of the water is less than the thickness of the paint. That just blew my nine year old mind.
345 likes and no replies? Ill make the replies 1
352 likes and 1 reply? Ill make the replies 2
362 likes and 2 replies? Ill make the replies 3
@@anotherrandominternetguy404 okay
390 likes and 4 replies? Ill make the replies 5
You went the extra 1.6km with this one, Nick! I was astonished at the "finger sensitivity" information, and it really added to the video as a whole. Amazing!
I was pretty mind blown when I learned it too.
A+ on the measurement joke!
What is kilometer? Me American don’t know plz heelp is mile or fert how big and small?
Yo
@@verlax8956 1.6km is about one mile.
so personally I got a chuckle out of the poster saying "the extra 1.6km" instead of "extra mile"
though personally I will always prefer imperial for my measurements, I just find it's easier to keep scales straight.
I’ve wondered this more often than I care to admit!
I think it would be smoother than a heart.
Her: *I bet my Doctor is thinking about other patients*
Doctor: *What would the earth feel like if I could hold it in my hand?*
🤓 Glad I could finally give you answer then, Rohin.
I read somewhere that the Earth is smoother and rounder than a billiard ball when shrunk to the same size. Always wondered if it was true.
Oh mam you here too?
The Science Asylum: "Wanna know what the Earth would feel like in your hand?"
Me: "No. Wait, yes, yes I do."
It would feel like a molten hot jellyfish surrounded by a thin film that shielded your hand from the insane temperature inside, but the moment you broke that fragile film it would be like grabbing onto glowing steel in a steel mill. The nature of liquid would be different, sticking to your hand like glue and burning it like Napalm. A few seconds of excruciating pain followed by no hand.
Wet Ball
WET HARD SPIKY BALL
@@aaronmicalowe I’ll just put on an oven glove
Underrated comment
I like to give my 7th grade students an assignment. They have to pick a random map from an atlas and then calculate the height of the atmosphere (100 km) on their selected map. Now they have to create some kind of model or just find an object with that thickness, lay it on the map, and take a picture. It give a sense of how thin a layer the atmosphere actually is on our planet.
Nice! 👌
8:44 All the clone jokes aside, that editing was seamless... how did you manage to pass the paper so naturally? :o
I'm really proud of this one. Thanks for noticing.
(SPOILER)
I watched at ¼ speed. It looks like he had someone offscreen hand him the papers and then added Research Clone's profile to the image.
I too watched that part a few times, very well done Nick!
Its actually "super easy barely an inconvenience" he overplayed just his head and had someone else hand him the paper.
Finally at 400k subs, Nick! Huge congratz
the world ain't fare. As far as physics goes, this is my favorite channel. I wish it was over a million at least
He is the best science communicator on CZcams hands down
Omg yeah!
Your comment reminded me of how criminally underrated Nick's channel is
Still a criminally low count for such outstanding content.
Ah yes, love when channels answer what I never asked
This Channel here warmly reminds me of Veritsaium.
Or Hbomberguy.
Or 'Its ok to be smart'...
God, i love to recommend such stuff to random people!
Yeah
@@juliusnepos6013 Yeah what?
I was always told our sense of touch is so sensitive, if the earth could fit in the palm of our hand we would be able to feel the trees and cars. Something tells me our hearing would be good enough to hear the sound of billions of people screaming for dear life too.
All I knew before watching this is that the Earth would be smoother than a competition snooker ball at the same size. Cool video.
...and it turns out that snooker ball thing is a myth.
That sounds right. Just from my back-of-the-envelope-calculations, a mountain with a 5000-foot prominence is on the scale of micro-inches on an earth that is 4 inches in diameter. On a finished aircraft part with everything in-spec, you can very easily see and feel a 1/1000th inch ding or corrosion pit in the metal. But the mountain on the 4-inch diameter earth is comparative to feeling the difference between a 16 and 32 micro-inch surface finish. You can't, you need specialized equipment to measure that. I'd say the snooker ball is a very good analogy.
@@ScienceAsylum I must beg to differ. I've done the sums:
Snooker ball diameter 52.5mm, tolerance ±0.05mm. Factor 1/1050.
Earth diameter 12,742km, Everest 8.849km, Mariana 11.034km. Factors 1/1440 and 1/1155.
Looks like Earth is smoother than the roughest balls permitted in competition. 🙂
There is that new 1kg sphere which is the smoothest thing ever
As a veteran geologist of 45 years, my favourite of many of your excellent presentations. I have tried to explain ‘the same’ many times but you do it in a much more entertaining and memorable way.
An aside. It can often be misleading to use ‘representations’ and ‘analogies’ in the science. This video should be used for a 101science course. You explain well how reality can be distorted if we don’t look at actual empirical evidence.
Nice!
You know he’s serious when he’s using his name and has no pfp
I wouldn't call feeling the guilt of destroying all those houses "smooth" 😅
You would have guilt over that? What about the lives you ended instead of houses?
@@ForgivenMan-jl7bp I didn't want it to become too dark
@@ForgivenMan-jl7bp If I was large enough to be able to hold the earth in my hands, I highly doubt I'd even know about houses, or people, nor would I care.
as someone who lives on earth, being crushed by a supergalactic giant is way cooler than the telegraphed heat death we're waiting on
@@nickthe509 ... Much cooler
Neat! I've always heard that the Earth is smoother than all but the very finest billiards balls, but quantifying it against the limits of human tactile perception is really cool!
Another one I've heard often, and it'd be cool to see you do some confirmation/analysis of is that if the real Earth was the size of a typical globe, you could sop up all the water in all the oceans with a single paper towel.
The one I've always heard is if you add the depth of the lowest ocean trench to the height of the tallest mountain and compare it to the size of the Earth, it's roughly the equivalent of the distance between the bottom of a valley and peak of a ridge of your fingerprint relative to the size of your finger tip.
Technically, it depends on the billiard ball. Freshly-made billiard balls will always be smoother than Earth. Used beat-up balls might be rougher.
Galactus: “And this next dish has the best texture out of everything I’ve eaten. It’s so crunchy and juicy at the same time in one bite.”
Everybody sing! He's got the whole world in his hands... lol
"...Oops!"
_Atlas..._ What did you do?
Awwwe, did you drop the earth?
😂
I totally forgot about that movie
@@ScienceAsylum Most people make mountains out of molehills. You did the opposite.
@@ScienceAsylum Nick, I know this'll sound weird, but thank you for preserving the accents in Kármán, as a Hungarian it means a lot.
This makes me think about the weirdness on the smallest scale. Imagine the roughness/complexity emerging from apparently smooth things when scaled up to human size/earth size.
A billiards ball would have mountains and valleys that dwarf all we have on earth.For some objects we would see matter rearrange itself in colossal avalanches.
@@naamadossantossilva4736 this is a myth based on the allowable billiard ball roughness to play pro pool… it would be a REALLY rough ball… with a lot of damage you could easily feel… new billiard balls are a million times smoother than the earth would be.
@Oni isn't that what relativity describes?
@Oni no I meant general relativity.
Newton's equations work for most things but break down in certain conditions, orbit of mercury for example.
General relativity refines how we think gravity works, and expands on Newton's equations to explain more things (orbit of mercury solved).
What you've described is basically the idea of things changing at different scales. Relativity too breaks down in certain conditions. Early universe, centre of black holes, for example.
I'm just pointing out that your hypothesis of laws changing at different scales describes the current state of physics. You don't have to speculate your own ideas about how the universe works, we have a lot of data on this to draw from.
@@uninspired3583
And in the other direction...
You'll first find discrete matter; and then, down into the realm of individual particles, the quantum nature of our universe emerges and reality really starts to look different. Quantum nature being scaled up has been covered many times in the science media (basically a right of passage for any new science communicator) but topics include quantum tunneling, teleportation, entanglement, and superposition (the infamous Schrodinger's cat...), and trying to come up with weird analogies to explain complex phenomena to your average person (does _laymen_ have the bad connotation I feel like it does?).
If the earth in your hand is 100mm across, then mountains would be around 0.05mm tall. Might look and feel like 180-220 grit sandpaper grains. That really is a lot smaller than I expected 🤔
if the earth is the size of a billiard ball it would be smoother
@@djano6519 This video just proved that's NOT the case. Did you watch it?
@@djano6519 Got this from another comment:
The Science Asylum
4 months ago
Technically, it depends on the billiard ball. Freshly-made billiard balls will always be smoother than Earth. Used beat-up balls might be rougher.
@@apreviousseagle836 Did YOU watch it? He literally said in the video, that you wouldn't feel a thing unless you were rubbing it. You can definitely feel 220 grit sandpaper's roughness without any movement.
The earth is super smooth. The mountains are perceptible when rubbing, but that is still insanely smooth.
I love the pacing of your videos and how you add a few ideas then recap, a few more, then recap, and then a final recap of everything. I find it really effective for learning.
Okay, we need somebody to actually /make/ a scale accurate hand globe. *nods* I admit that the machining would be difficult. But it must be done!
I originally considered having one 3D printed for this video, but then I did the math 🤦♂️
@@ScienceAsylum basically steal the new kg prototype, which is a nearly perfectly polished sphere of silicon, then cut nanometer precision surface features in it. Would be one of the most expensive and most useless objects in the world at the same time.
@@ScienceAsylum aww come on… a beach ball sized one 3D printed with fine filament acetone vapor bathed for smoothness, then laser cut to show the continents and the under sea ranges and crevasse…
@@SuperVstech I have to agree, that would be kinda epic!
@@ScienceAsylum I have been working on making a cue ball size earth since 1997. The math and machining have been mind numbing. NASA’s 3.6 billion point model to 100k creates a smooth headache.
That was the best Earth-to-scale demonstration I've ever seen! When you were up the ladder - lightbulb! (And a little vertigo - perfect.) Thanks, and congratulations on your anniversary!
Thanks! 🤓
I study atmospheric phisics and I've always wondered why air seems to have such a hard time to flow around the globe. But now you made me realize how incredibly thin the troposphere is and it all makes sense! Thank you!
Glad I could help! 🤓
This has been a shower thought of mine for so long, thanks for making a video on it.
I love the timing of your posts. Its around 8 in the evening in India, the perfect time for us to watch after a day of school or college
Yeah ikr! :)
Absolutely!
Great coincidence for you guys! Nice
We Americans have it in the afternoon, great time to watch while eating some lunch.
I was in the middle of class when he uploaded
2:47 I've never ever seen a couple look more like professors than you guys. _Not even the Curies_
😂
I can't even express how grateful I am that there are people like you willing to put in so much work so that there is some very cool entertainment to be found.
I love science and your editing and humor are right up my alley, I'm glad I found this channel.
If we start to see giant fingers fondling our cars and houses we know who to blame.
I made a comment similar to the beginning comment premise in "I proved 1,300,000 Earths WON'T fit in the Sun" and it even got an answer from The Science Asylum four months ago. I didn't intend my comment to be facetious or anything, I was just very curious. This video has ticked EVERY box for me for things I am interested in and is fantastic. I almost feel like this video was made for me and I absolutely loved watching every minute of it.
Thank you for doing what you do.
I don't understand why this channel doesn't have more subscribers... His explanations are on point. He doesn't simply dumbs things down - he actually takes time to explain. Yes, simplified versions, but gives more than enough background for anyone interested to research further.
Ah, the perspective. Such an underrated thing.
"Kind of a crazy topic" was my first thought when I read the title of this video. My second thought was, of course, "It's ok to be a little crazy." It was also interesting and enjoyable. Once again, a great video... and I love your sense of humour.
Hey Nick. Been following you for a while now and you're still my favorite channel. Bonus points for using the metric system haha. The depth of your analysis is so entertaining, and I really like how natural and open you are. And you two are such an amazing couple. Thanks for being this incredible. =)
The first time I saw you on CZcams I remember binging through your (already huge) playlist, and then feeling ashamed an educator with your passion and talent could work that long and hard and still have under 20K subs. It’s awesome to see your channel finally getting the recognition it deserves!
Thanks! 🤓
I first subscribed to your channel at 10K subs... Now you're at half a million
You totally deserve it tho, your content is honestly great
That was pretty cool video. I was rooting for being able to feel surface roughness and it turned out right.
Thanks! 🤓
Changing the perception of how you see a single concept really helped me a lot in my daily life thanks to this channel.
It's good to see your channel grow man! Kudos to ya!
Thanks!
Great video as usual. Congratulations on getting over 400k subscription. And thanks for teaching me something I didn’t know I wanted to learn (as usual lol)
Thanks! I like answering weird question.
A lot of the concepts on your channels that I watch, I have some previous knowledge about but the way it's presented in a new light or a different style makes me really happy that people like you are making others understand complex ideas with ease. Great work.
Thanks! 🤓
Excellent video on dying questions I had that was raised by other science channels. In one video you answer the annoying oblate spheroid, geoid, and the smoothness question perfectly.
I just recently found your channel from the all mighty algorithm and I must say... Holy cow your content is great! You should have even more subscribers! Keep up the awesome work! Looking forward to your next video
Thanks! 🤓 I work hard on this stuff, so it's nice to know it's appreciated.
A science museum should make a model earth to hold and feel like this!
Maybe use jello for the ocean. But put the mountains roughly right as well as the obleitness.
Maybe even add skyscraper cities.
Doesnt have to have every peak and building right, but close enough so you can feel it.
I bet that would be very educational for all!
It would be realy interesting
I just watched the VSauce video talking about this concept the other day and I was just thinking about it, When I saw the notification for this video, I couldn’t help but laugh at the coincidence.
Not always a coincidence, they all watch the same documenaries on the streaming services or read the science papers when they come out.
@@PATISLAV the VSauce video was posted 4 years ago
@@kenshiromilesvt.7037 I was thinking it odd that vsauce would put another version of that video out…
Every paranoid knows that coincidences do not exist.
CZcams thinks you're interested with how a scaled down earth looks like
"Something being fun to watch doesn't necessarily mean it has educational value." 😂
So true these days
Maybe but Sci assylem is both fun and informative...thank you sir.
Was he taking a shot at Physics Girl???
@@chriskennedy2846 I am not sure, it seemed like that. Or maybe he was talking about how other youtubers just put a video call conversation in between their videos without any reason just for collaboration sake. So he didn't put their conversation in this video.
"Its ok to be a little crazy!"
- yeah, but to use imperial units is to crazy :P
i like how the thumbnail makes it so that i don't actually have to watch the video unless i want to hear all the details of why we can feel the details of a tiny earth with our hands
This video blew my mind. I never realized how big the earth actually is. Dispite the size, a plane flies around this thing in 40 hours, which is awesome and gives me a new perspective on how amazing this technology is. The ISS does it in 90 minutes, but it feels like cheating, but the speed! Walking day and night takes almost a year. What a huge ball. And this all compared to the size of black holes. Just wow!
Right?! It's mind blowing.
Why is the ISS cheating? It only got to that speed because the Space Shuttle accelerated it that fast...
@@IamGrimalkin I thought so because it's not beeing slowed down by atmosphere.
@@saschaxanch Well, the same is true with planes (to a lesser extent of course).
This actually answered one of my late night and shower thoughts. Thank you, Nick.
Hey there, new subscriber here! I just wanted to say that I love your comedic approach to science with a fair amount of complexity to it. It makes it easy to learn and engage with curious individuals, regardless of their age. My 8 year old daughter has been binge watching your videos. Thank you and keep up the good work!
Thanks for watching and sharing with your daughter. I love to hear when parents share with their kids.
I just came across this channel this week and I gotta say these are some crazy videos. I love it lol
Man, congratulations to you and the wife for the fifth anniversary!!!!!!!!!
Thanks! 🎉
woo! 🎉🎈🎊🥳
That was actually way better done than I thought it was going to be. I was so hoping for an attempt to find the limits of human perception when it came to touch and you did not disappoint! Still looking for a video that explains how atomic motion and molecular motion leads to infrared light being released rather than visible light!
czcams.com/video/Mj2QOpQkSfI/video.html
The algorithm answered me! Maybe this can be inspiration but I felt like there were a few things not mentioned, like the reason black body radiation has the curve it does for any given temperature.
Just found you on my feed for the first time and you're awesome liked, shared and subbed. Looking forward to allot more solid content !
Thanks! 🤓
I like that smooth sphere, since the gold foil longitude and latitude lines are similar to what you've described - not noticeable touching the ball, but unmistakable if rubbing it.
I love the recent addition of the in-sequence outtakes.
Denali actually has a very large base-to-peak height. much larger than Everest, which sits on a plateau.
Yes. I actually had a bit about this detail in the video, but it got cut at the last minute because it was distracting from the main point.
Your presentation was adequate enough to take your word for how the earth would feel in my hand. Even if I could hold the earth in my hand, I wouldn’t want to out of fear of causing a mass extinction event for earths inhabitants.
I appreciated how you described the scientific proof of how you knew the sensitivity of touch of the human hand. That was an excellent example of having a concept and expressing an observable and repeatable measurement. Id love to hear your same method for the other concepts that you do authoritatively state as fact. Particularly in reference to the oblateness of the sphere.
It was an awesome paper on human touch thanks for bringing it up. By the way, the particle size of a P2000 sandpaper is about 10 um. It is smooth but you can feel the abrasive surface. It is crazy how smooth the Earth is. Amazing video thanks!
As a skeptic of: "It would be completely smooth if reduced to the size of a cue ball", I enjoyed this presentation!
great info and love the Galactus refence. SUBED for sure :)
This one earn you my sub! I always imagined that the earth should be pretty smooth to hold by some cosmic size hands. But not sure how smooth. But now I know!
You make a lot of interesting and unusual videos! *Keep it up!*
Thanks!
@@ScienceAsylum Np, buddo!
@@ScienceAsylum As our minds have a physical existence in the universe, as soon as you imagine a number, it also has some kind of physical presence that propagates independently from the mind, even if just in encoded form.
I LOL when the US line showed up in your diagram. And then giggled when you didn’t bother again later. ❤️😁
Great video! Really helped me understand the staggering magnitude of the earth. On a separate note, where did you get that little globe? I'd like to have it on my desk.
watta good watch, loved it! First video I saw of your channel, but all the clones totally had me hahaha!
Yay, another mind blowing science asylum video to watch before bed!!!
Scale-model earths with that kind of precision would be super cool. Yeah, they'd be expensive to make, but nowhere near impossible (maybe not every house needs to be there, but cities and natural formations would be cool). Yeah it'd be really expensive to make, but if I had the money I'd probably get one lol
If a guy had Bill Gates kind of money, that would be a fun project to have somebody do.
I think I feel a tad bit weird having a microscopic version of my house on somebody's globe
The Werefrog was amazed at learning the Earth is smoother than a billiard's ball. This video gave a decent explanation of why that is.
Research Clone handing Nick a stack of papers is low key the best visual effect on this channel.
it's the nature of gravity to try and make spheres after a certain mass threshold has been reached, but it's not always a *perfect* sphere, but clearly the deviations of earth are very negligible under most circumstances. It's like a 1x1 square versus a 1x1.001 rectangle, is it a square? not technically. Could equations that use squares instead of rectangles work with it? Eh, pretty much.
"for all the metric people out there" LITERALLY THE REST OF THE WORLD MY GUY
However, his audience may be skewed just a wee bit to the non-metric world.
I prefer using the term “non-metric”, even though I learned from Veritasium there is no longer any non-metric standard; it’s converted from metric standards.
Wow! This whole video was awesome, but it was actually taking that 1 million:1 scale map up onto the roof, and envisioning the dimensions of the full hemisphere of the earth centered on Colorado that really brought things into a new perspective for me! We've all used those million-to-one maps, putting them into perspective with the rest of the earth is so cool, and helps me get a better sense of the earth's size and size relationships far better than I ever have before! With the additional info about mountain sizes being truly amazing. I've always had trouble envisioning relatively small islands having whole mountain ranges on them (even though I've been to Hawaii and seen it first hand!), seeing things this way suddenly makes it make sense!
For anyone who wants to mentally add the atmosphere to the roof picture, when he's up there on the roof you can imagine the entire atmosphere ending just 4 inches above the map.
Thanks for a wonderful explanation.
Even i have the “thing explainer” book you have in the background. That book awesome!
Link to where we can get it? Pls?
0:12 le my mind subconsciously playing that old music 😂😂
Love your channel!
thank you for including metric. very helpful for me
I love this guy, he's awesome.. so fun to learn about science from him. I actually enjoy being called crazy 😹
I want... NEED to see more of Research Clone in The Asylum! He could help me with a bit of my mad science!!!
The first video I watched from your channel, already subscribed.
Welcome! 🤓
Thanks for the hard work. I understood your explanation.
You're welcome 🤓
The fact that we would be able to feel cars and houses blows my mind
This helps tremendeously to give a reference and to help understand the size of the earth, and everything on it.
Humans are nutoriously bad at imagening huge numbers.
So this video realy helps!
You explained it very simply mad respect
It would be freaking awesome if someone made a scale model to your scale for a museum.
They could even have a special rig to allow the scale model to turn on its axis or even turn anywhere.
Of course, the scale model would have to be in a really big museum but it would be stunning reguardless.
I never asked for this.
But I needed it.
I’m sad the clones have such narrow interests. I feel they should be free to enjoy full, well rounded lives.
You know whats funny... Theres actually a 1,000,000 to 1 scale globe in Maine. Which is funny because when you were mentioning the Diameter while ontop of the roof, it almost matched perfectly with the scale globe in Maine. Its called "Eartha" it weighs 5,600 pounds and has a diameter of over 41 feet
Just Googled it! WHOA!!! I've got to go see this thing!
Once again standout content you don’t see anywhere else! I watched this channel a lot a few years ago and kind of drifted away (I blame the algorithm) but I’ve recently started watching more and they’re better than ever.
Oh man, just when my decade-long push to get everyone to switch to Planck Units had started to gather momentum, you go all retro and start loving the metric system?!!! 😥
I can't believe that this type of precious quality content video is free on CZcams
LOVE FROM INDIA
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I always compared earths surface to the surface of a pancake when shrunk down. You can still feel a little bit of difference, but it's ultimately pretty smooth
nice to see your tackling the big questions
Our the small questions, depending on how you look at it 😉
One of the "fun facts" I've seen since the 80s (or earlier?) is that the Earth is smoother than the required smoothness of a billiard ball. Which seems pretty accurate.
Maybe an older beaten up billiard ball. A new fresh professional one should be smoother than Earth. While Earth is incredibly smooth, humans are capable of making smoother objects.
Yes, the key words are “Required smoothness” basically, the competition rules show the rejection stats of a damaged ball to remain in play, and anything smoother than that will not be replaced unless requested… the earth wouldn’t HAVE to be replaced…
@@SuperVstech So you can keep playing billiards with the Earth for some time?
@@SuperVstech The Earth would most definitely have to be replaced. That old saying "Earth is smoother than a billiard ball" is misinterprets the tolerance for roundness as a tolerance for smoothness. Regulation smoothness is way more strict.
I like when you add the metric system in your videos. I don't understand why Americans still want to use imperial...
I'd like it if we switched to metric, but we haven't so I have to live with it.
I think the answer is because it is “good enough”, and it also has some advantages particularly in carpentry and machining measurements, which is a common reason to measure things for many people.
The scalings on this are really well chosen 👍👍
Wow 1 million to 1 scale map has been the best for understanding the scale of the earth and how thin the atmosphere is.