Anker’s new PowerIQ 5.0 intelligent chargers are smaller and more efficient: https://shop.anker.com/Xk2OAQ | https://ankerfast.club/wt97e2 #AnkerTech This video looks at the counter-intuitive weirdness of navigating two "simple" space manoeuvres, and was inspired by this blog post by Avi: https://smorgasb.org/orbital-speed-paradox/ Brachistochrone over at Vsauce : https://youtu.be/skvnj67YGmw Link to Patreon Supporters: http://www.minutephysics.com/supporters/ And Facebook: http://facebook.com/minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich Produced by Joshua Chawner

Full video: https://www.youtube.com/watch?v=iFwfexZstO4 The difficulty of driving backwards has almost nothing to do with the direction you’re facing and everything to do with the fact that you steer using the front wheels. When driving forwards, a car goes in the direction the front wheels are pointed. And when driving backwards, the car goes where the back wheels are pointed. Simple! But the difference is that going forwards, the direction of travel is determined by the same wheels you steer with, so you just point them where you want to go, and that’s where you go, the back wheels follow automatically. However, when driving backwards, the direction of travel is determined by the back wheels but you steer with the front wheels. So rather than just pointing the front wheels where you want to go, you have to point them in the direction that will get the BACK wheels to point in the direction you want to go – it’s an additional level of separation before the car does what you want. And in fact, if you don’t make any corrections, then over time the back wheels point farther and farther away from the direction you want to go: instead of following the front wheels, they run away! Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich

See Copenhagen Atomic's progress towards real commercial Thorium energy here: https://www.copenhagenatomics.com This video looks at how thorium reactors generate more fissile material than they consume! REFERENCES - Thermal breeder reactors: https://doi.org/10.1146/annurev.ns.22.120172.001533 - Thorium reactor: https://www.ans.org/pubs/proceedings/article-59521/ - World Nuclear Association: https://world-nuclear.org/information-library/current-and-future-generation/thorium Link to Patreon Supporters: http://www.minutephysics.com/supporters/ And Facebook: http://facebook.com/minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich Produced by Joshua Chawner

A response to Veritasium's video on Newcomb's Paradox. See my full conversation with Derek over on the MinutePhysics patreon: https://www.patreon.com/cw/minutephysics See Derek's original video over on the Veritasium channel: https://www.youtube.com/watch?v=Ol18JoeXlVI REFERENCES - Newcomb's Paradox: https://doi.org/10.1007/978-94-017-1466-2_7 - Quantum solution: https://doi.org/10.48550/arXiv.quant-ph/0202074 - Quantum causality: https://doi.org/10.1103/PhysRevX.7.031021 - https://www.pokutta.com/blog/newcomb-four-lenses/ - https://scottaaronson.blog/?p=30  - Veritasium video references Link to Patreon Supporters: http://www.minutephysics.com/supporters/ And Facebook: http://facebook.com/minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich Produced by Joshua Chawner 00:00 Intro 00:51 Newcomb's Paradox 02:01 One Box vs. Two Boxes 03:02 Causal Calculus 04:17 Intervention 05:45 Perfect Prediction 07:32 Quantum Mechanics 09:39 Henry's Thoughts 11:11 What Should You Choose? 12:09 Join MinutePhysics! 12:28 Derek's Thoughts

Full video: https://www.youtube.com/watch?v=IM630Z8lho8 Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich

Full video: https://www.youtube.com/watch?v=IOYyCHGWJq4 I'm sure you've heard some version of this famous thought experiment: you put a cat in a bunker with some unstable gunpowder that has a 50% chance of blowing up in the next minute, and 50% chance of doing nothing. So until we look in the bunker, we don't know whether the cat is dead or alive, and when we do look, it is either dead or alive. But if we repeat the experiment enough times with enough cats and bunkers and gunpowder, we'll see that half the time kitty survives, and half the time kitty goes bye-bye. The quantum mechanical interpretation is that before we look, the cat is in a superposition - it's both dead AND alive - and our act of looking forces nature's decision. So our curiosity kills the cat. But what about the cat's perspective? Well, the cat either sees the gunpowder explode, or not – so inside the bunker we actually have these two possibilities: "the powder exploded and the cat saw it explode" or "the powder didn't explode and the cat didn't see it explode". There's no option: "the powder exploded and the cat didn't see it explode" - so the cat's reality becomes entangled with the outcome of the experiment! And it's our observation of the experiment that forces nature to "collapse" to one option or the other. Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich

Help stop the worst parts of factory farming: http://www.farmkind.giving/minute-physics?promo=minute_physics This video explains how ISO is very different to what most people imagine, and how you can use this knowledge to take less noisy photos! REFERENCES - Sensor Analysis Primer: https://www.photonstophotos.net/GeneralTopics/Sensors_&_Raw/Sensor_Analysis_Primer/Photographic_Dynamic_Range_Shadow_Improvement.htm - Image sensors explained: https://www.canon-europe.com/pro/infobank/image-sensors-explained/ Link to Patreon Supporters: http://www.minutephysics.com/supporters/ And Facebook: http://facebook.com/minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich Produced by Joshua Chawner Chapters 0:00 Misunderstanding ISO 1:54 ISO Explained 3:20 Why Even Have ISO? 4:52 What Actually Creates Noise 7:12 ISO Step-by-Step Guide! 8:36 Sponsor Message from FarmKind 9:43 ISO Caveats

Full video: https://www.youtube.com/watch?v=IM630Z8lho8 A common physics misconception is that you can simply add velocities together — but experiments in special relativity show that you can’t. Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich

Full Video: https://www.youtube.com/watch?v=lR4tJr7sMPM You may have heard that Einstein's theory of special relativity imposes a cosmic speed limit: nothing can travel faster than the speed of light. Well, that's wrong. All that Einstein said was that light moves at the same speed in every reference frame - and while this implies that nothing with real mass can move faster than light, it doesn't impose a cosmic speed limit. Because you can break the speed of light in your backyard. All you have to do is point a laser beam at the moon and flick your wrist. The spot of light from the laser beam will travel across the moon's face in about half a millisecond, which means it's traveling at twenty times the speed of light! How is this possible? Well, think about a computer screen – what's the speed limit for pixels on the screen? Zero. Pixels can't move. But if you cleverly arrange a whole bunch of pixels to turn on and off in a special way, you can make an image that appears to move across the screen, even though every pixel stays put. So you've broken the speed of pixels! The laser pointer on the moon is basically the same - each photon travels to the moon at the speed of light, but the image of a dot that they form on the surface moves twenty times faster! No physical laws are broken because nothing physical is actually traveling faster than light - it's just an image. Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich

Sign up for Brilliant for free and get 30 days of full access to all of their courses here: https://Brilliant.org/MinutePhysics. You’ll also get 20% off an annual Premium subscription for all of Brilliant’s content. Thanks to Brilliant for their support. This video explains how the Fermi Paradox - the fact that aliens should mathematically be abundant in the universe and yet we haven't heard from any - actually makes sense when you take into account quantum technology. REFERENCES - On Interstellar Quantum Communication and the Fermi Paradox: https://doi.org/10.48550/arXiv.2408.02445 - Quantum coherence to interstellar distances: https://doi.org/10.48550/arXiv.2009.00356 - Exponential Separation of Quantum and Classical One-Way Communication Complexity for a Boolean Function: https://doi.org/10.48550/arXiv.quant-ph/0607174 - Classical Interaction Cannot Replace a Quantum Message: https://doi.org/10.48550/arXiv.quant-ph/0703215 Link to Patreon Supporters: http://www.minutephysics.com/supporters/ And Facebook: http://facebook.com/minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich Produced by Joshua Chawner Chapters 0:00 The Fermi Paradox 0:27 Interstellar Quantum Communication 1:21 Quantum Communication Requirements 2:19 Why We Don't Hear Anything 3:07 Fermi Paradox Solution? 3:48 Sponsor Message from Brilliant 4:30 Caveats!

Watch the full video: https://www.youtube.com/watch?v=9udYi7exojk When Isaac Newton originally observed a rainbow of light split by a prism and made his labeling of the colors as "RedOrangeYellowGreenBlueIndigoViolet", the thing he called “blue” was indeed what we would now call blue-green, or teal or cyan – reminiscent of the color of the blue sky. And what we now tend to call blue, Newton called violet - as in, roses are red, violets are blue. Dark blue. He only included indigo in his fundamental "seven colors of the rainbow” so that they would match the number of notes of the western musical scale: Do re mi fa so la ti… yeah. Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich

Watch the full video: https://www.youtube.com/watch?v=IM630Z8lho8 Gravity is not dependent on mass, but rather on energy and momentum. Which is something that light has! This is why light can get bent when passing by a star, planet, or black hole. Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich

Want to restore the planet’s ecosystems and see your impact in monthly videos? The first 100 people to join Planet Wild with our code MinutePhysics1 will get their first month for free: https://planetwild.com/r/minutephysics/join If you want to get to know them better first, check out their mission about the power of peatland ecosystems: https://planetwild.com/r/minutephysics/m35 This video is about the interesting and often-misunderstood story of the asteroids, and how they lost their planet-hood status; more recently than you may think! REFERENCES - https://www.sciencedirect.com/science/article/abs/pii/S0019103518303063 - https://www.pnas.org/doi/pdf/10.1073/pnas.39.12.1159 - https://www.eoas.ubc.ca/~mjelline/453website/eosc453/E_prints/newfer010/asphaug_asteroids_AR09.pdf Link to Patreon Supporters: http://www.minutephysics.com/supporters/ And Facebook: http://facebook.com/minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich Produced by Joshua Chawner Chapters 0:00 Intro 0:23 Asteroid Planet Discovery 1:07 Asteroid Planet Reaction 1:48 Why Asteroids are Not Planets 3:09 Demotion of the Asteroids 3:47 Sponsor Message from Planet Wild!

Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics This video is about how the International Astronomical Union's definition for a planet is flawed, even if you take it at face value! The moon almost counts as a planet according to their definition, even though they don't want it to... REFERENCES MinutePhysics video about the moon's orbit: https://www.youtube.com/watch?v=KBcxuM-qXec IAU 2006 Resolutions: https://iauarchive.eso.org/news/pressreleases/detail/iau0603/ Paper arguing moon satisfies IAU criteria: https://doi.org/10.4236/ijaa.2017.74024 https://doi.org/10.3847/PSJ/ad4edd BEST paper about planet definition history: https://doi.org/10.1016/j.icarus.2021.114768 https://doi.org/10.1017/S1539299600013289 IAU exoplanet working definition: https://doi.org/10.1017/S1539299600013289 Link to Patreon Supporters: http://www.minutephysics.com/supporters/ And facebook - http://facebook.com/minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich Produced by Joshua Chawner Chapters 0:00 The IAU's definition of "Planet" 0:23 Criteria a) "Orbits the sun" 0:53 Criteria b) "is round" 1:28 Criteria c) "clears its orbit" 2:38 Criteria X) "not a moon" 2:59 Criteria "Footnote" - "must be on the list" 3:42 The Purpose of defining "planets" 4:16 So, what is a planet?

The MinutePhysics t-shirt bundle is available now: https://store.dftba.com/products/physics-t-shirt-bundle How do we truly know if something is orbiting something else? You may be familiar with the barycenter test, but you may not have heard of the better "Trojan test"! Further reading: - https://science.nasa.gov/resource/what-is-a-lagrange-point/ - https://www.sciencedirect.com/science/article/pii/S138764732200001X - https://map.gsfc.nasa.gov/ContentMedia/lagrange.pdf - https://iopscience.iop.org/article/10.3847/PSJ/ad55f3 Link to Patreon Supporters: http://www.minutephysics.com/supporters/ MinutePhysics provides an energetic and entertaining view of old and new problems in physics - all in a minute! Created by Henry Reich Produced by Joshua Chawner 00:00 Intro 00:15 Barycenter Test Problems 02:18 Trojan Points 03:20 Trojan Stability 04:00 The Trojan Test 04:21 Trojan vs. Barycenter 05:16 Trojan Test Usefulness 05:45 Earth - Moon System 06:03 DFTBA Physics Shirt Bundle!