Steve MouldI take a classic demonstration of warping spacetime and figure out how to demonstrate gravitational waves with the addition of some wheels and a drill.
Gravitational Waves Work Like This Drill on SpandexSteve Mould2016-08-09 | I take a classic demonstration of warping spacetime and figure out how to demonstrate gravitational waves with the addition of some wheels and a drill.
Smart watches use a flashing green light to measure your heart rate and a red and infarred light to measure your oxygen saturation. The way it works is really clever.
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A ball on a spinning turntable won't fly off as you might expect. In fact the ball will have it's own little orbit that is exactly 2/7th the angular speed of the table. Here's why.
Here's a paper with the calculations: http://m2.askthephysicist.com/Weltner.pdf Note that equations 18 and 19 should have R² terms. That threw me off for longer than I care to admit!
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Deoxyribozymes are catalysts made of DNA instead of proteins. With some clever manipulation they can be turned into molecular computers that play tic-tac-toe.
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Spintronics has mechanical resistors, inductors, transistors, diodes batteries and capacitors. When you connect them together with chains, they give a really good intuition for how circuits works.
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You can support me on Patreon and get access to the exclusive Discord: patreon.com/stevemould
just like these amazing people:
Frank Hereford Will Ackerly Brendan Williams Cameron Leigh Middleton Matthew Cocke Frederic Merizen Jeremy Cole Pavel Dubov Lizzy and Jack Alan Wilderland Joel Van der loo Glenn Watson Doug Peterson Paul Warelis John Zelinka Alnitak Grant Hay Heather Liu Marshall Fitzpatrik Lukas Biewalk JJ Masson Ben McIntosh Damien Szerszinski
You can support me on Patreon and get access to the exclusive Discord: patreon.com/stevemould
just like these amazing people:
Frank Hereford Will Ackerly Brendan Williams Cameron Leigh Middleton Matthew Cocke Frederic Merizen Jeremy Cole Pavel Dubov Lizzy and Jack Alan Wilderland Joel Van der loo Glenn Watson Doug Peterson Paul Warelis John Zelinka Alnitak Grant Hay Heather Liu Marshall Fitzpatrik Lukas Biewalk JJ Masson Ben McIntosh Damien Szerszinski
You can support me on Patreon and get access to the exclusive Discord: patreon.com/stevemould
just like these amazing people:
Frank Hereford Will Ackerly Brendan Williams Cameron Leigh Middleton Matthew Cocke Frederic Merizen Jeremy Cole Lizzy and Jack Alan Wilderland Joel Van der loo Glenn Watson Doug Peterson Paul Warelis John Zelinka Alnitak Grant Hay Heather Liu Marshall Fitzpatrik Lukas Biewalk JJ Masson Ben McIntosh Damien Szerszinski
Sometimes called transparent metal mirrors, these curiosities from China baffles western scientists for 100 years. The way they works is really surprising.
Correction: 2:29 Ugh, those angles are off. The sides of the divot should be at 22.5 degrees not 45 degrees for those rays to be correct. But you get what I'm trying to show right?!
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You can support me on Patreon and get access to the exclusive Discord: patreon.com/stevemould
just like these amazing people:
Frank Hereford Will Ackerly Brendan Williams Cameron Leigh Middleton Matthew Cocke Frederic Merizen Jeremy Cole Lizzy and Jack Alan Wilderland Joel Van der loo Glenn Watson Doug Peterson Paul Warelis John Zelinka Alnitak Grant Hay Heather Liu Marshall Fitzpatrik Lukas Biewalk JJ Masson Ben McIntosh Damien Szerszinski
You can support me on Patreon and get access to the exclusive Discord: patreon.com/stevemould
just like these amazing people:
Frank Hereford Will Ackerly Brendan Williams Cameron Leigh Middleton Matthew Cocke Frederic Merizen Jeremy Cole Alan Wilderland Joel Van der loo Glenn Watson Doug Peterson Paul Warelis John Zelinka Alnitak Grant Hay Heather Liu Marshall Fitzpatrik Lukas Biewalk JJ Masson Ben McIntosh Damien Szerszinski
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just like these amazing people:
Frank Hereford Will Ackerly Brendan Williams Cameron Leigh Middleton Matthew Cocke Frederic Merizen Jeremy Cole Alan Wilderland Joel Van der loo Glenn Watson Doug Peterson Paul Warelis John Zelinka Alnitak Grant Hay Heather Liu Marshall Fitzpatrik Lukas Biewalk JJ Masson Ben McIntosh Damien Szerszinski
Frank Hereford Will Ackerly Brendan Williams Cameron Leigh Middleton Matthew Cocke Frederic Merizen Jeremy Cole Alan Wilderland Joel Van der loo Glenn Watson Doug Peterson Paul Warelis John Zelinka Alnitak Grant Hay Heather Liu Marshall Fitzpatrik Lukas Biewalk JJ Masson Ben McIntosh Damien Szerszinski
Penrose Unilluminable Room is a room with mirrored walls that can't be fully illuminated by a single point source of light. I thought I was the first person to build one but Action Lab beat me to it: youtu.be/inMihNPjevM
Frank Hereford Will Ackerly Brendan Williams Cameron Leigh Middleton Matthew Cocke Frederic Merizen Jeremy Cole Alan Wilderland Joel Van der loo Glenn Watson Doug Peterson Paul Warelis John Zelinka Alnitak Grant Hay Heather Liu Marshall Fitzpatrik Lukas Biewalk JJ Masson Ben McIntosh Damien Szerszinski
Bird water whistle's have a really interesting mechanism. I made a 2D transparent version so you could see what's going on inside. I also explain how whistles work. Including the kettle whistle.
CREDITS: Air jet impinging on a wedge simulation by Philip Simons using Sjubb:
Frank Hereford Will Ackerly Brendan Williams Cameron Leigh Middleton Matthew Cocke Frederic Merizen Jeremy Cole Alan Wilderland Joel Van der loo Glenn Watson Doug Peterson Paul Warelis John Zelinka Alnitak Grant Hay Heather Liu Marshall Fitzpatrik Lukas Biewalk JJ Masson Ben McIntosh Damien Szerszinski
00:00 Intro - NFTs aren't want people say they are 01:05 Cryptocurrency explained 02:55 What non-fungible means 05:41 The Ethereum blockchain makes NFTs possible 06:55 NFTs are made on the Ethereum blockchain 07:11 NFTs as tickets for an event - a hypothetical real world use case 09:31 Buying NFTs without trust 11:17 What NFT art actually is 19:16 Maybe NFTs aren't stupid 20:50 LegalEagle tells me not to do something stupid 24:15 NFT collectables - CryptoPunks 25:05 Support digital artists by buying their NFTs 27:26 Sponsor message
Frank Hereford Will Ackerly Brendan Williams Cameron Leigh Middleton Matthew Cocke Frederic Merizen Jeremy Cole Alan Wilderland Joel Van der loo Glenn Watson Doug Peterson Paul Warelis John Zelinka Alnitak Grant Hay Heather Liu Marshall Fitzpatrik Lukas Biewalk JJ Masson Ben McIntosh Damien Szerszinski
Matthew Cocke Frederic Merizen Jeremy Cole Frank Hereford Will Ackerly Brendan Williams Cameron Leigh Middleton Alan Wilderland Joel Van der loo Glenn Watson Doug Peterson Paul Warelis John Zelinka Alnitak Grant Hay Heather Liu Marshall Fitzpatrik Lukas Biewalk JJ Masson Ben McIntosh Damien Szerszinski
Parametric Resonance is when one parameter of an oscillator is varied at the right frequency to cause the amplitude to increase. Autoparametric Resonance is when that happens automatically!
Alan Wilderland Joel Van der loo Glenn Watson Doug Peterson Paul Warelis John Zelinka Alnitak Grant Hay Heather Liu Marshall Fitzpatrik Lukas Biewalk JJ Masson Ben McIntosh Damien Szerszinski Matthew Cocke Frederic Merizen Jeremy Cole Frank Hereford Will Ackerly Brendan Williams Cameron Leigh Middleton
Matthew Cocke Frederic Merizen Jeremy Cole Frank Hereford Will Ackerly Brendan Williams Cameron Leigh Middleton Alan Wilderland Joel Van der loo Glenn Watson Doug Peterson Paul Warelis John Zelinka Alnitak Grant Hay Heather Liu Marshall Fitzpatrik Lukas Biewalk JJ Masson Ben McIntosh Damien Szerszinski
Alan Wilderland Joel Van der loo Glenn Watson Doug Peterson Paul Warelis John Zelinka Alnitak Grant Hay Heather Liu Marshall Fitzpatrik Lukas Biewalk JJ Masson Ben McIntosh Damien Szerszinski Matthew Cocke Frederic Merizen Jeremy Cole Frank Hereford Will Ackerly Brendan Williams
The Assassin's Teapot belongs to a family of similar trick vessels (Think A Drink, Any Drink Called For, Inexhaustible Bottle, The Magic Kettle). They all rely on surface tension and atmospheric pressure to work.
Matthew Cocke Frederic Merizen Jeremy Cole Frank Hereford Will Ackerly Brendan Williams Alan Wilderland Joel Van der loo Glenn Watson Doug Peterson Paul Warelis John Zelinka Alnitak Grant Hay Heather Liu Marshall Fitzpatrik Lukas Biewalk JJ Masson Ben McIntosh Damien Szerszinski
I love string shooters because they behave so counterintuitively. I was able to get hold of this prototype and make a few modifications to try and explain why the string does what it does!
Alan Wilderland Frank Hereford Will Ackerly Brendan Williams Matthew Cocke Frederic Merizen Joel Van der loo Glenn Watson Doug Peterson Paul Warelis John Zelinka Alnitak Grant Hay Heather Liu Marshall Fitzpatrik Lukas Biewalk JJ Masson Ben McIntosh Damien Szerszinski
Putting ballpoint pen ink on the tip of a leaf then putting it on water (or milk if you want it to stand out) causes the leave to whizz around leaving trail of ink behind.
Here's the video I did with Matt using oleic acid to calculate pi: youtu.be/lmgCgzjlWO4
Frank Hereford Will Ackerly Brendan Williams Matthew Cocke Frederic Merizen Joel Van der loo Glenn Watson Doug Peterson Paul Warelis John Zelinka Alnitak Grant Hay Heather Liu Marshall Fitzpatrik Lukas Biewalk JJ Masson Ben McIntosh Damien Szerszinski
Frank Hereford Will Ackerly Brendan Williams Matthew Cocke Frederic Merizen Joel Van der loo Glenn Watson Doug Peterson Paul Warelis John Zelinka Alnitak Grant Hay Heather Liu Marshall Fitzpatrik Lukas Biewalk JJ Masson Ben McIntosh Damien Szerszinski
Frank Hereford Will Ackerly Brendan Williams Matthew Cocke Frederic Merizen Joel Van der loo Glenn Watson Doug Peterson Paul Warelis John Zelinka Alnitak Grant Hay Heather Liu Marshall Fitzpatrik Lukas Biewalk JJ Masson Ben McIntosh Damien Szerszinski
So it turns out Up and Atom made a video about this a while ago(youtu.be/cALezV_Fwi0)! Thanks for bringing that to my attention commenters! I've just watched it and it's really good! The whole channel is fantastic actually. Check it out!
This spring paradox is actually an analogy for Braess's Paradox which is about traffic. The surprising behaviour of the springs when the blue rope is cut is just like how journey times can actually go down when you close a major road, even with the same number of journeys being made.
Will Ackerly Matthew Cocke Joel Van der loo Glenn Watson Doug Peterson Paul Warelis John Zelinka Alnitak Grant Hay Heather Liu Marshall Fitzpatrik Damien Szerszinski Lukas Biewalk JJ Masson
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Joel Van der loo Glenn Watson Doug Peterson Paul Warelis John Zelinka Alnitak Grant Hay Heather Liu Marshall Fitzpatrik Damien Szerszinski Lukas Biewalk JJ Masson Matthew Cocke Will Ackerly
Artificial sweetener works by binding to your sweetness receptors but they provide no calories. What effect does that have on the sweetness receptors in your gut and can your other taste senses be tricked in the same way: sour, butter, umami (savory) and salt?
It's possible to sail a yacht faster than the wind that powers it! Although it happens all the time, it's really counterintuitive. Can it be explained with Bernoulli or Newton? Or both?
Crowned Pulleys do this bizarre counterintuitive thing. Instead of slipping off the curved surface, the band actually moves to the middle and stays there.
Not to be confused with snatch block type pulleys! Destin's video here: youtu.be/M2w3NZzPwOM
Matthew Cocke Glenn Watson Joseph Rocca Joël van der Loo Doug Peterson Rashid Al M Paul Warelis Will Ackerly Heather Liu Alnitak
Twitter: http://twitter.com/moulds Instagram: instagram.com/stevemouldscience Facebook: facebook.com/stevemouldscience Buy nerdy maths things: http://mathsgear.co.ukMy Virtual Heart Could Save My Life One DaySteve Mould2021-05-20 | The Finite Element Method/Analysis is an incredibly powerful way to model the real world. By discretizing a continuous medium you can accurately simulate the real world. Simulating a living organism like the heart is really challenging because you have to add things like electrical conductivity to your model. But perhaps more challenging is to bring together all the experts from different disciplines. But it has finally been achieved.
Computers add numbers together using logic gates built out of transistors. But they don't have to be! They can be built out of greedy cup siphons instead! I used specially designed siphones to works as XOR and AND gates and chained them together so they add 4 digit binary numbers.
Orbital Resonance Incredibly, three of the four largest moons of Jupiter (Ganymede, Europa and Io) have orbital periods that are whole number ratios with each other (1:2:4). The big gap in Saturn's rings is caused by a moon much further out that has an orbital period double that of the gap! We've even found exoplanet systems with these patterns. They're all the result of orbital resonance. This video explains how that mechanism works.
CORRECTION: In the video I say that Ganymede, Europa and Io are the largest moons are jupiter. Actually here are the 4 largest moons from largest to smallest:
Have you noticed the shape of your urine stream when you pee? It does this twisty undulating thing. But why? And why do the same waves appear when you pour a liquid from a container?
Matthew Cocke Glenn Watson Joseph Rocca Joël van der Loo Doug Peterson Rashid Al M Paul Warelis Will Ackerly Heather Liu Alnitak
Twitter: http://twitter.com/moulds Instagram: instagram.com/stevemouldscience Facebook: facebook.com/stevemouldscience Buy nerdy maths things: http://mathsgear.co.ukThe Bizarre Way We Track Fake Virus Particles That Shouldnt WorkSteve Mould2021-02-11 | The Lattice Boltzmann Method of modelling fluid flow (computational fluid dynamics) sounds like it couldn't possibly work but it has amazing predictive power. Coupled with Lagrangian Particle Tracking, it's a clever way to figure out how virus particles move around a building.
This video is paid for by Dassault Systèmes who are experts in computer modelling and have helped hospitals to reduce the spread of coronavirus using these methods. Find out more here:
Tensegrity (or tensional integrity, or floating compression) is really counterintuitive. These bizarre structures can be explained quite nicely with a 2D version (you know I love to explain things with a 2D versions!).
I found out after uploading that the Lego model is the creation of a YouTuber! Check out their channel: youtube.com/c/JKBrickworksVideo
Nathan Williams Matthew Cocke Glenn Watson Mark Brouwer Joseph Rocca Joël van der Loo Doug Peterson Yuh Saito Rashid Al M Paul Warelis Will Ackerly Marcel K
Heron's Fountain is a mind bending hydrodynamic mechanism. It appears to be perpetual motion but it fact it's a really clever mix of pneumatics and hydraulics. This 2D presentation helps to explain how it works.
Gaining unauthorised entry to someone else's car is illegal. Jamming is illegal in the UK. It might be illegal where you live too.
Car key fobs transmit a binary code to the car over radio. If the car recognises the code it unlocks. There are various systems in place to make that process secure. This video is about the way vulnerabilities in those systems can be exploited. Including replay and rolljam attacks.
Nathan Williams Matthew Cocke Glenn Watson Mark Brouwer Joseph Rocca Joël van der Loo Doug Peterson Yuh Saito Rashid Al M Paul Warelis Will Ackerly Marcel K
PVC cement (it's technically not glue) spins in water. It might be because the solvent is being expelled onto the surface of the water creating jets the propel the blobs around.
Joseph Galliera Nathan Williams Matthew Cocke Glenn Watson Mark Brouwer Joseph Rocca Joël van der Loo Doug Peterson Yuh Saito Rashid Al M Paul Warelis Will Ackerly Marcel K
Almost all white things are white because of scattering. You can do really cool things by playing with refractive index to dial up or down the amount of scattering, you can even make things disappear. It's how a Buddha Board works!
Joseph Galliera Nathan Williams Matthew Cocke Glenn Watson Mark Brouwer Joseph Rocca Joël van der Loo Doug Peterson Yuh Saito Rashid Al M Paul Warelis Will Ackerly
Joseph Galliera Nathan Williams Matthew Cocke Glenn Watson Mark Brouwer Joseph Rocca Joël van der Loo Doug Peterson Yuh Saito Rashid Al M Paul Warelis Will Ackerly
I'm reluctant to say "gravity defying", but come on, this is cool! You can levitate a viscous liquid just by shaking it! Not only that but a buoyancy effect appears on the other side. I also show Kapitza's pendulum.
The Kapitza pendulum paper is here: http://butikov.faculty.ifmo.ru/InvPendulumPTSE.pdf
Here's the research that lead to all the nice levitation footage from Benjamin Apffel, Filip Novkoski, Antonin Eddi and Emmanuel Fort: arxiv.org/abs/2003.04777
Joseph Galliera Nathan Williams Matthew Cocke Glenn Watson Mark Brouwer Joseph Rocca Joël van der Loo Doug Peterson Yuh Saito Rashid Al M Paul Warelis Will Ackerly