The Surprisingly Useful Physics of Desk Toys
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- čas přidán 17. 06. 2024
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How do Newton's Cradles connect to cancer treatments? Let's unpack the physics of some of our favorite desk toys, from dippy birds to perpetual motion machines, and explore how these scientific principles can be used beyond an office desk.
Hosted by: Hank Green (he/him)
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We like you better when you are not drinking
As long as it's one of the 14 they offer.
Duolingo offers 43.
Just sayin'.
@makegrowlabrepeat
Are you talking to that bird or Hank? If the latter, that might be projection, if the former you might want a doctor to check out your own birds.
As for @SciShow: if Babble ends the contract, consider Grammalrly. It's worth it.
Boss, Hank Green told me to play with more toys at work. One does not simply ignore the wishes of Hank.
“I guess your pay will be docked, then.”
Muscle Hank returns.
I can see my students applying this same logic, but I would be happy that they have been watching Hank Green.
@@roberttrimmier3276 Having seen some of the junk they could be watching. Yeah.
His will is guarded by more than just charisma.
Ah yes, the science of playing with your balls at work. But in all seriousness, I think one of the reasons that desk toys like these are so interesting is because the utilisation of physics makes the toy seem more complicated than it actually is.
I work from home, I can do that all day long!
...with a Newton's cradle, of course!
Sometimes, we underestimate just how complicated something is when we come to understand it.
“Why bring this up,” one might ask?
Let’s just say that self-reflection in what we can do compared to others can be helpful later on in life, provided you are reasonable with it.
@@awkwurdtalke-gamesandgamer8236 what's that got to do with playing with my balls?
And some play with balls as their actual work and gain millions from it. And we have created gazillion ways to play with our and each other's balls and we call them sports. How crazy is that?
In the 70s we had one of the drinking bird. I discovered that if you allow the bird to drink for many days nonstop, the adhesive which holds the beak attached to the glass frame fails and the beak falls off. Evaporation then stops , the bird dies. Very fun toy. My first pet who died😊.
That is a hilarious way to put it. My condolences💛🦜
You worked your first pet to death, forced it to labour until it's very body began to break down... how do you sleep at night?
@@Totalinternalreflection 😂
Aw jeez. Never had one fall apart like that. Sorry for your loss.
Turns out methylene chloride is a good solvent
These are desk toys, because if you have cats, you can't have them at home and must take them to work.
Only some of them. Some of them would actually be funny to see them play with/react to. (Like the gyro)
Dang I was thinking of getting one and didn’t think about that
My cat ate nearly all the wires of my Newton's craddle when I was a kid. :(
The fun thing about seeing new and amazing perpetual motion machines is speculating where the batteries are hidden.
Similarly, the fun thing about seeing a new and amazing idea for a perpetual motion machine is figuring out where the energy actually gets lost!
The individual who created the rocking bird was a colleague and very good friend of my father in law. He talked about him and the fun they had with other projects they worked on. Both men are gone now, and we are sadder for it.
I bet they brightened every room they were in. I love people with that kind of delightful imagination. I’m sorry that you don’t have them in your life anymore and I hope you’ve met more!
Such toys were produced in China well over 100 years ago.
@@fishyerik No, my dad who works at Nintnedo invented it, along with the Yo-Yo.
@@fishyerikMaybe their father in law's friend was an old Chinese man
Physics: It's just explainable magic.
Clarke's Third Law (or Agatha's First).
No, magic is thoughts and feelings made manifest. I am a fantasy writer 📝 🎉😊
Same with chemistry ❤️👩🏻🔬⚗️
@@emanym It is indeed that, but magic is also physics that science can't yet explain :D
@@emanymA person's behavior is also their thoughts and feelings made manifest, but we can explain it better, so we don't call it magic. If I could reliably heat a kettle by frustration or incantations alone, people would seek to explain it. Insofar as they succeed, the effect would turn into science.
The drinking bird can also be trained to operate a nuclear reactor.
It works perfectly until it falls over. 😂
@@fisherdog06 chernobird
hmm yes...
okuu moment
@@fisherdog06i read this as "it works perfectly until it fails" lol
@@fisherdog06"I should never have left you in charge!"
My favourite use of the drinking bird is in the opening scene of Alien, where you can see one just calmly doing its thing in the mess hall of the Nostromo before the crew are awakened.
I love these things. My dad was a college physics professor and I got to visit on a regular basis. I remember playing with these and many other things. My favorite basic one was a slinky. Another favorite was the big wheel you hold while on a stool and you could change directions by turning the wheel in your hands.
that big wheel was another form of gyroscope. the Seattle science center had a powered gyroscope on a turntable. you could stand on the turntable and turn the enclosure the gyroscope was in and make the turntable rotate.
I’ll never forget my sophomore college physics professor on angular momentum: “If 25 years of teaching this class has taught me anything, it’s that all of you have an angular-momentum-shaped hole in your brain where it used to reside, or perhaps never even was.” 😂
Is this the equivalent of the Krebs Cycle Hole for biology/biochem?
I'll take the bullet.
Hank talked about losing a ball. My brain went to Lance Armstrong.
Hank is beating Cancer in the face.
I thought of old school Halo, Teabagging.
Hang is teabagging cancer.
Dark humour.
Love you guys, keep up the great videos.
I just have a really dark sense of humour.
you’re a poet, my friend
It's so cringey when people say they have a dark sense of humour. Lol yes we get it you think you're edgy.
Also your "joke" or whatever that was meant to be makes literally no sense at all.
If you want to go down a rabbit hole, read/watch videos about "gimbal lock". Sometimes in a gyroscopic system, the gimbals for each of the axes will line up, resulting in a situation where the movement that follows it can't separate those two axes, leading to erroneous readings. Planes have to deal with it, the Apollo spacecraft had to deal with it.
Thanks, I’ll definitely search out that rabbithole!!
yeah, the Apollo 13 movie talked about it.
it's possible to build your gyroscope so it's immune to gimbal lock, but it requires an additional (4th I think?) ring with the expense and complexity that requires. for the Apollo program, they decided to use the cheaper mechanism and just train the crew to avoid the gimbal lock situations
Anyone else annoyed that we never see the bird on the desk drink? Like it starts to do its thing, then we cut to a graphic, then when we cut back to Hank the bird is swinging quickly since they probably made it reset.
The WHOLE time I kept waiting for a single cut where we saw it drink. That's all I could think about.
Steve Mould made a great video about the "perpetual" motion machine!
Hank hitting the sauce early today I see
Haha, I'm right there with ya Hank!
"Who doesn't like steady metallic clacks of the Newton's cradle?" Ironically, probably the person who's desk it is on, as it's a magnet for everyone who goes into said office space to play with.
I would have loved a collab with Tim from _Grand Illusions._
3:39 lithotripsy!
Lithotripsy is a noninvasive procedure that uses shock waves or ultrasonic energy to break up hardened masses like kidney stones, gallstones, or bezoars.
"The hardest part of building a perpetual motion machine is figuring out where to hide the battery."
"Par dough nay moi seal voo play"
Flawless
5:53 a 15°/h drift. Thanks Bob!!!
I am now just starting to understand how a gyroscope originated all that thankfulness. We didn't have it even mentioned in Physics class. 😢
Yes! SciManDan? Creaky? Or another?
@@IAmTheShaz sciman and creaky. I continue to use it. I even after Bob died. His greatest contribution to human society.
15°/h times the cosine of your latitude. It's called the "horizontal Earth rate." Back when I was learning to fly, before there were glass cockpits, the directional gyro had a little knob. We'd have to adjust the knob every 15 minutes or so to get the DG to agree with the magnetic compass. Some of the error was due to gimbal friction but most of it was from the rotation of the Earth.
These desk toys sure have a lot of physics behind them. Who would have thought that something as simple as a Newton's Cradle could be so complex?
I have invented the perfect new desk toy. A 'perpetual motion' machine, powered by a drinking bird generator! (Yes, I know, not enough power)
What if we made a F***ING massive bird?
yeah, perpetual motion will *definitely* work, just keep building bigger 😹😹😹
You could have it powered by multiple drinking birds.
My family used to have a little "perpetual motion" top powered by an electromagnet in the base it spun on. I'm not sure if Dad still has it somewhere, but it was fun while we had it out and spinning.
Meanwhile, I have a Galileo thermometer, given to me by my grandparents 25+ years ago. It's a fluid-filled glass cylinder that uses buoyancy to tell temperature. As the thing warms up, glass balls inside (partly filled with air to make them _almost_ neutrally buoyant) switch from floating at the top to sinking to the bottom. Each ball is calibrated to sink at a different temperature.
Kinda cool how many different little toys can be so interesting and instructive! 😎
I wouldn't call it a toy, but there are perpetual clocks inside glass domes. They have a cylinder of liquid that expands with temperature and air pressure and pushes a piston that winds the spring. Way outside my budget.
I've seen those used in actual lab settings to monitor temperatures inside terrariums. A similar device can be used to test your car's antifreeze, as density changes as the proportion of water to antifreeze changes.
I always think about the first person to realize that when you pull back 2 or more balls on the Newtons Cradle that the same number pops up on the other side..... I still remember being a kid and having a teacher show me one of these and it gave me so many questions that nobody could answer. I remember pulling up 3 balls and thinking "maybe 2 will pop up because there's only 2 left" and then I let go and it blew my mind when 3 popped up on the other side.... Wish I could have had a teacher that could have answered those questions at the time but I'm kind of glad I didn't because it gave me something to study up on until I got to play w/ one again. 😅😂
I've always grouped magic systems into three types: Clarkian magic, which is just "technology so advanced it's indistinguishable from magic"; magitech, where there's no actual connection between magical cause and effect, but each bit of magic can be combined in logical ways to create new magic; and pure magic, which is "the magic does whatever the plot demands". And so I love that every day, thanks to science, a bit more Clarkian magic becomes real.
(I've also recently started classifying magic systems in a second dimension related to how they're applied: artifacts, where the magic is imbued into an object; medical magic, where the magic is consumed like potions or applied topically; and innate magic, where magic is just an energy-like phenomenon that's emitted from, say, a wand or a wizard's hand when casting spells. So Clarkian artifacts are future tech, Clarkian medical magic is future medicine, and Clarkian innate magic is a subset of future physics; etc.)
(...yes, I am a hobbyist author, game developer/designer, and Minecraft mod maker... why do you ask? 😅)
!!! Any books or games or mods you'd like to share?? Your thoughts sound FASCINATING!
@@awaredeshmukh3202 I mean... I haven't made a mod since Minecraft 1.12, have never actually completed a book, and have only completed games made on a short time limit for game jams... I have this problem finishing projects where my motivation jumps from one project to another as soon as it takes more than a week 😅
But if you wanted to check out one of the game jam games of mine, you can check out "Eubert 2 Must Die" (by IceMetalPunk -- I'm currently on my work account, but that's my personal account username everywhere). It seems all my older games were in jams that have since been deleted and lost to time, unfortunately :(
I love this! Really makes me think about the Age of Legends from the Wheel of Time, and how they had a sort of magic-tech where they used technology to enhance their magic.
As a locksmith there is a bypass method called bumping that can allow you to unlock certain types of locks very easily so long as you have a bump key for that specific key way. It's a very old method and it primarily uses concepts shown in newtons cradle. In order to properly understand why it works you kind of need to understand how most locks work, but very simply if you insert a bump key into your lock almost all the way and hit it with a hammer while turning the key, each groove on your key hits each of the tumbler pins with enough force to collide with the pins above them (the drive pins). The tumbler pins stay in place, while the drivers get sent upward creating a gap between them. If you turn your key at the perfect time it can allow you to unlock it. I see this method used very frequently in my day to day
Raking works on the same principle as do pick guns
My favorite desk de-stresser is the little top that spins forever because it is sitting on a magnet, and uses the grooves like a gravity propulsion to cause endless movement on a magnetic field. I haven't stopped it yet. And it has gone for about 30 days now since unpacking it. But yes I do in fact have all these desk de-stress toys. The clinging of the ball bearings, and even to the weird water bird neck feeder thing. At least they're a good time killer watching them❤😊
Damn, that sounds really cool. Where do I get one and what should I be searching for?
it's an electromagnet powered by a battery
@@PondScummer the one I'm mentioning, is a simple top with a needlepoint, that's sits inside of this weird bowl like bass. Kind of like a Beyblade stadium. But before beyblade. This thing is much smaller about the size of a jar lid or bowl. There is a small magnet inside of the top. And in the bass you'll find a magnet as well. Is concave with carved groves.
So the top as it spins, Working its way through this maze towards the bottom. As it approaches the bottom, the base magnet repels the magnet inside the top pushing it back to the top of this base. And as its sloped, gravity naturally has the top go back towards the bottom. It continues indefinitely until you stop it or friction slows it down too much. And as me posting it, it's been about 3 months or so since I actually started it.
It's a simple magnet repulsion with gravity. Someone gave it to me a very long time ago. But I can't remember who now. It was my professor I had before. He had on his desk, and I was very curious about it at the time. There is no batteries just magnetism, and gravity.
@@hughcaldwell1034 you can usually find them in the usual places, Amazon or ebay, I'm pretty sure even Walmart's online. The catch is you don't want to get the electronic one that runs off power or maybe you do?
It's a simple stainless steel or aluminum spin top, but has a positively or negatively charged magnet in the core. And the spinning base usually more like a bowl, is laid on or inserted with a powerful magnet of the opposite polarity as the spin top. As the magnet spins, it's pushed away from the center, but due to the angle of the bowl, it wants to be pushed back down with gravity. And what the constant magnetic pushing away and pushing the magnet to spin, it keeps circling it for a couple hours, or for me going on over a month. Although I did notice that it has engraved grooves into it, so it's kind of being focused.
But the ones you find on these are not the one my professor gave me. This one's old school. And it's just straight up magnets. I would say ceramic or Monster magnets, with a opposite polarity magnet that's inside the spin top itself.
For reference I got this when I was in Middle school, so this one was made about well over 20 years ago. Not like the ones you're going to find being readily advertised or sold on these sites.
These aren't just playthings but tools that demonstrate physical laws. The apparent simplicity giving way to profound scientific principles is truly captivating.
My personal favourite is the Crookes Radiometer. I keep one on the windowsill.
Nice Balls Hank!
Love the new hair! We are all blessed to have learned from you. You have had an impact on soooo many lives, thank you good sir
The drinking bird is one of my go-to science desk toys. Interesting physics that are easy to observe and understand, but it’s also quiet, and runs continuously with very little input. Just top up the water every couple days (distilled water is best for keeping the head felt clean long-term).
I also have a lava lamp anywhere I do work. Fascinating physics there too, as well as a great illustration of a chaotic system. In my cubicle, it’s my in/out-of-office indicator. Only downside is it’s getting harder to find suitable light bulbs, because some genius politicians decided to ban them.
Im so happy hank green(he/him) hosted!
You made me grab my woodpecker on a metal pole that is attached to it with a spring and it "pecks" its way down the pole when started. I love it
3:59 I'm stealing this line ;P so simple yet so good.
Hank you weapon of a human. I'm so happy to see you back on SciShow like old times.
I know you been back for a while. But heck man, I'm so happy you came good.
Lots of love and go on safety third again rofl.
One of my special interests as a child was desk toys, this hits the spot
This is the best episode so far! Thank you 🙏
My sixth grade teacher had a Newton's Cradle on his desk, and I was fascinated with it. He explained to me how it works and I thought that was so cool.
Very interesting and surprising. I want more videos like that.
I learned a lot from this show. Thanks!
I'm really liking the new set style
Wanted some of these for so long. I'd love for my lil apartment to be place of intrigue, science and learning. But most of these (proper one's) are quite expensive, when you can't even afford to go out for drinks. I always buy all of my stuff either at thriftshops or something similar to the US's craigslist/ebay. Alas, for some reason absolutely no one ever sells these kinds of things second hand, and I've never seen anything at any of the thriftshops here.
So if you ever get done with any of these items please put them online or give them to a thriftshop instead of throwing it away! Even when it might be broken. Some of us like to fix up stuff when possible :).
I’m so sorry :( I hope you’re able to fill your apartment to the brim with things of intellectual intrigue someday very soon.
If you’re open to a suggestion that will more than likely prove to be utterly useless, I could think of a couple of places beyond thrift shops that might be worth checking, assuming that your part of the world has versions of these that are similar to mine, anyway. I’m thinking that maybe you could post some “wanted” ads on various community cork boards, like maybe at the local colleges or universities, or maybe even high schools. I know my high school physics teachers and my college professors definitely had some extra science doohickeys around. Especially after science fairs and stuff. Maybe you could post an ad in the school paper or newsletter too (that would probably reach more people than the community cork boards). I’m thinking teachers would be happy to donate some of their extras to someone that really wants them, especially if you’re willing to fix them up. You might also have some luck putting an ad on the cork board of large office buildings. Surely somebody in one of those huge buildings will have received a “desk toy” as a gift at one point that they no longer want or don’t have space for. Also, I don’t know if the app “Nextdoor” is available or popular enough in your area to be of any use, but it’s super popular everywhere I’ve lived in the US over the last 10 years, and people use that like crazy for all kinds of stuff, including posting stuff for sale and want ads. You could also be much more specific about what area you wanted to search in on Nextdoor than you could be on Craigslist, which is very useful if you’re in a big city and don’t want to travel far. Same goes for Facebook Marketplace. People sell TONS of stuff on there in my area. Again, I know you’ve probably already tried most if not all of these suggestions, and that’s if they’re even available to you at all, but I thought it was worth my time to type them out just in case one of them hadn’t occurred to you. Best of luck finding what you’re looking for, fellow science lover ❤
@@shelbylynn9 no I haven't 😊. Thank you so much for taking the time to think with me, and to write it all out! There are some great tips in there.
I live in the Netherlands and we don't do a lot of the things like corkboards and such. Due to chronic health conditions and not owning a car, travelling is somewhat of a barrier as well. But I will be putting some wanted ads online (never did this, as I feel noone checks those, but I'll try), and I'll be checking in with some schools and university's for sure.
In time I will be able to purchase some of them new even. It's just that I have different priorities right now. As most of my bedding (and underwear) is full of holes 😅 and my refrigerator is slowly dying.
Really appreciate your time and attention ❤️. Have a great day!
Watching Hank nerd out over desk toys is something I didn't know I needed
I have a sterling engine that runs on my coffee mug on my desk
Damn right, the temperature in my mug is directly proportional to the speed of my sterling engine. That’s how I know when my coffee is at the correct temperature.
Beauty in simplicity 💪💕
thank you
Losing the Ball 😂
Hanks favorite game 😊
Lmaooo! U just summed up everything i learned in college this semester. I'm so glad to understand this video.
I study Electrical Engineering Technology and I won't really deal with physics later on the job but it's really cool to see how these components i use daily function 😆❤️
This Video is my Shopping List Now.
Time to start selling desk toys for charity
Those birds are neat.
Just learned of battleship degaussing. Electromagnetic compensation along perpendicular feild lines. Navigation compass is shielded by reversal of compensation.
A couple of years ago, i wandered around our (very large) open office doing a survey of 'desk toys'. The office population is pretty much 50/50 men and women but the toys were ALL on men's desks, none of the 36 women had desk toys 🤷♀️
Stil has curly hair! AWESOME ❤❤❤
I always thought that Newtons cradle would be a good way to explain how a/c current works as opposed to d/c current.
I’m not sure how to explain what’s different, of late, about this channel’s format, but I will say I love it
They have real sets instead of green screen.
They keep doing these little asides to a second camera.
legends say the missing ball became a graviton
I feel like this comment went *right* on over people's heads. And that's a shame.
@@playgroundchooser thanks
This one felt especially like Hank didn't want to read what was written but even less so wanted to come up with the intro on the spot
If you're interested in inappropriate uses of the Newton's Cradle, The Slow Mo Guys shot bullets at one with fascinating results.
Yay! Geeky nerdy stuff! 😊
The toy gyroscopes pictured do not have the gimbaled frame that most of the diagrams have, so they do start to change their direction of spin as they are affected by gravity which causes them to "precess" rather than just fall over as expected, so the toy can balance on a point or a string in an unexpected manner - thus their "toy" usage.
On my desk is mini-skeeball, my SciShow corkboard filled with anime pins, a sand/water art frame, a wormin fidget toy, and a mirror-bowl of candy. Oh and Geof, a dammit-doll with a squeak inside so when you slam him, he squeaks. And Sunny, a teddy bear strategically positioned to block god’s flashlight from streaming into my eyeholes through my SouthEast-facing window. About ten textbooks sandwiched between crazy curious books like Ancient Aliens, ten children’s books in Thai and a few in Mandarin, a few favorite Dr. Seuss books, and a book about Pluto getting punished for not cleaning its room. And a standing desk. But I had to bring the exercise board home because I fell down using it and HR won’t let me have it.
I was always fascinated by the drinking bird
neat toys!
This video definitely opened with some Steve Brule energy
Years ago I sketched a large solar gravity wheel using the dippy birds and a 1/2 shade for the wheel. It would have been 50 gallon drums pained black and would have not been cheap to build.
As a Canadian, that French was far from flawless, but still pretty good.
Sorry about the ball lol great video
I always wanted a drinking bird after watching Darkman
Cannot believe I had to scroll this far to find a Darkman reference.
Also, same.
normal newton's cradle: 5 balls
hank's cradle: lost a ball but still going strong
“It’s so easy to play with these balls”
*More desk toy videos related to science*
✊🐴
Hello Handsome Hank! 🤗🤗
Hank, you could convince anyone that you are drunk. Pure acting skill lol
So funny, during Babble break at 7:28 phone screen is displaying a Turkish conversation while what's his name is talking about speaking French. 🤪
I actually met the guy who invented the drinking bird. He was awesome!
I don't think I ever saw one of those work properly. I bought one from a joke shop when I was about thirteen, and I always regretted not spending the money on stink bombs.
I’d say that perpetual motion is possible…
If no energy is lost in the loop then the loops would keep going indefinitely until the universe dies or whatever…
The part of thermodynamics that forbids it is that you cannot get energy out of that system. Also it is extremely unstable because even photons from visual light would be enough to leech energy from the loops
At least that’s what I think
0:26 the way he said "balls" caught me off guard.
If we were to line up a bunch of these guys next to a river how much energy could we produce and for how long?
sick
The birds also been used to keep nuclear power plants running. If that's not useful physics idk what is.
3:19 I wonder why they’re calling it sound bullets instead of just ultrasound (high frequency sound waves that they even use for pregnancies). Sonograms are just the picture from the ultrasound 🫤. Intimidating wording
"*Everything* is a spring." - Superfast Matt
I was doing other things during the video, but did occasionally look up, and it seemed you cut away JUST as the bird "was getting thirsty" and thinking about another sip.
Watching the jump cuts via the drinking bird
Does non-linear only apply to springs? Or can I start calling myself non-linear rather than weird?
We're all non-linear down here. 😊
It applies to everything that behaves in a well, non-linear way. For example, Human population growth was in a bit of a linear growth for most of the time (not taking into account pandemics that wiped away a big chunk of the population) but entered in a non-linear behavior since the Industrial Revolution and medicine advancements were more common and accesible, so it behaves in an exponential way
Re the newton's cradle: Eugene K just posted a video about how torque is an emergent behavior in non-rigid material 😻
I would also add the Slinky and the Magnetic Gyro Wheel toy. Im 66 and these items are still on my work desk.
How absolutely does a gyroscope hold its axis of rotation? Could a sufficiently sensitive gyroscope detect, e.g., the rotation of our solar system around the galactic core?
The electromagnet setup in the perpetual motion toy seems much safer than my railgun hypothesis.
Well, it's a sort of railgun.
on ships we use gyros to act a a ships compass!
Same as on planes.
What I really want is a Gomboc.
6:10 : this sounds kinda “Mach’s principle”-ish to me. Is it really “relative to the universe as a whole”, or just relative to the local patch of spacetime?
If in a hole in ground materials that keep heat it and dont let it out , could heat water or air to spin a turbine and produce energy
Hank going over the Drinking Bird right before DawnTrail's release eh?
I wonder if the cup the metal ball returns to in a "perpetual motion" toy was constructed of a piezoelectric electric substance that was wired to charge the battery in the base...would it be a perpetual system toy????