The Illumination Problem - Numberphile

The Illumination Problem - Numberphile

Февраль 28, 2017

Featuring Professor Howard Masur from the University of Chicago. Filmed at the Mathematical Sciences Research Institute (MSRI).
Part 2 of this interview: https://youtu.be/AGX0cLbHaog

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14:18 The Four Color Map Theorem - Numberphile

The Four Color Map Theorem - Numberphile

This video supported by Squarespace: https://www.squarespace.com/numberphile
The Four Color Map Theorem (or colour!?) was a long-standing problem until it was cracked in 1976 using a "new" method... computers!

A little bit of extra footage from this: https://youtu.be/laMkuPrad3s

This video features Dr James Grime — http://jamesgrime.com
More Grime videos: http://bit.ly/grimevideos

Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile

We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science.

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15:16 So why do colliding blocks compute pi?

So why do colliding blocks compute pi?

Solution to the block collision puzzle from last video.
Special thanks to these viewers: http://3b1b.co/clacks-thanks Channel support comes from viewers, primarily via https://www.patreon.com/3blue1brown

Many of you shared solutions, attempts and simulations with me in this last week. I loved it! Y'all are the best. Here are just two of my favorites.
By a channel STEM cell: https://youtu.be/ils7GZqp_iE
By Doga Kurkcuoglu: http://bilimneguzellan.net/bouncing-cubes-and-π-3blue1brown/

NY Times blog post about this problem:
https://wordplay.blogs.nytimes.com/2014/03/10/pi/

The original paper by Gregory Galperin:
https://www.maths.tcd.ie/~lebed/Galperin. Playing pool with pi.pdf

If you want to contribute translated subtitles or to help review those that have already been made by others and need approval, you can click the gear icon in the video and go to subtitles/cc, then "add subtitles/cc". I really appreciate those who do this, as it helps make the lessons accessible to more people.

Music by Vincent Rubinetti.
Download the music on Bandcamp:
https://vincerubinetti.bandcamp.com/album/the-music-of-3blue1brown

Stream the music on Spotify:
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—————————

3blue1brown is a channel about animating math, in all senses of the word animate. And you know the drill with YouTube, if you want to stay posted on new videos, subscribe: http://3b1b.co/subscribe

Various social media stuffs:
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9:45 How to always win at Dots and Boxes - Numberphile

How to always win at Dots and Boxes - Numberphile

Create your site on Squarespace: http://www.squarespace.com/numberphile
This video features 'games legend' Elwyn Berlekamp.
More links & stuff in full description below ↓↓↓

Elwyn's book on Dots and Boxes: http://bit.ly/DotsBoxesBook
Elwyn's Winning Ways on Amazon: http://amzn.to/1BIA6UB
Extra footage about bigger boards: http://youtu.be/rBngUo0JTzs

Support us on Patreon: http://www.patreon.com/numberphile

NUMBERPHILE
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Videos by Brady Haran

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17:35 Bell's Theorem: The Quantum Venn Diagram Paradox

Bell's Theorem: The Quantum Venn Diagram Paradox

Featuring 3Blue1Brown
Watch the 2nd video on 3Blue1Brown here: https://www.youtube.com/watch?v=MzRCDLre1b4

Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics
Link to Patreon Supporters: http://www.minutephysics.com/supporters/

This video is about Bell's Theorem, one of the most fascinating results in 20th century physics. Even though Albert Einstein (together with collaborators in the EPR Paradox paper) wanted to show that quantum mechanics must be incomplete because it was nonlocal (he didn't like "spooky action at a distance"), John Bell managed to prove that any local real hidden variable theory would have to satisfy certain simple statistical properties that quantum mechanical experiments (and the theory that describes them) violate. Since then, GHZ and others have managed to extend the theoretical work, and Alain Aspect performed the first Bell test experiment in the late 1980s.

Thanks to Vince Rubinetti for the music: https://soundcloud.com/vincerubinetti/one-two-zeta

And thanks to Evan Miyazono, Aatish Bhatia, and Jasper Palfree for discussions and camaraderie during some of the inception of this video.

REFERENCES:

John Bell's Original Paper: http://inspirehep.net/record/31657/files/vol1p195-200_001.pdf

Quantum Theory and Reality: https://www.scientificamerican.com/media/pdf/197911_0158.pdf

"What Bell Did" By Tim Maudlin: https://arxiv.org/pdf/1408.1826

Bell's Theorem on Wikipedia: https://en.wikipedia.org/wiki/Bell's_theorem

2015 experimental confirmation that QM violates Bell's theorem: https://arxiv.org/pdf/1508.05949.pdf
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.115.250402

Bell's Theorem without Inequalities (GHZ): http://dx.doi.org/10.1119/1.16243

Kochen-Specker Theorem: https://en.wikipedia.org/wiki/Kochen–Specker_theorem

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Minute Physics provides an energetic and entertaining view of old and new problems in physics — all in a minute!

Created by Henry Reich

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12:55 Seeing Through Selenite

Seeing Through Selenite

Get my favorite math and science toys delivered regularly to your home! http://www.curiositybox.com

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***CREDITS***

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10:5 Rare Earth Elements: China's Vibranium?

Rare Earth Elements: China's Vibranium?

It makes more sense if you watch the video.

Music provided by bensound.com

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12:48 Optical Tweezers and the 2018 Nobel Prize in Physics - Sixty Symbols

Optical Tweezers and the 2018 Nobel Prize in Physics - Sixty Symbols

More physics Nobel Prize videos: http://bit.ly/SSNobel
The 2018 Nobel Prize in chemistry: https://youtu.be/fMKtFKphuds
More links and info below ↓ ↓ ↓

This video features Professor Mike Merrifield from the University of Nottingham. Animation by Pete McPartlan.

The winners of the 2018 Nobel Prize in Physics were half to Arthur Ashkin “for the optical tweezers and their application to biological systems” and the other half jointly to Gérard Mourou and Donna Strickland “for their method of generating high-intensity, ultra-short optical pulses”.

https://www.nobelprize.org/prizes/physics/2018/press-release/

Visit our website at http://www.sixtysymbols.com/
We're on Facebook at http://www.facebook.com/sixtysymbols
And Twitter at http://twitter.com/sixtysymbols
This project features scientists from The University of Nottingham
http://bit.ly/NottsPhysics

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Sixty Symbols videos by Brady Haran
http://www.bradyharanblog.com

Email list: http://eepurl.com/YdjL9

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0:13 The Moving Sofa Problem - Numberphile

The Moving Sofa Problem - Numberphile

Featuring Dan Romik from UC Davis.
More footage from this interview soon on Numberphile2.
Dan's comprehensive page on this topic: http://bit.ly/movingsofa

Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile

We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science.

NUMBERPHILE
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Videos by Brady Haran

Patreon: http://www.patreon.com/numberphile

Thanks to:
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Today I Found Out
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7:52 What Does a 4D Ball Look Like in Real Life? Amazing Experiment Shows Spherical Version of Tesseract

What Does a 4D Ball Look Like in Real Life? Amazing Experiment Shows Spherical Version of Tesseract

Follow me on:
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In this video I show you what a movement through a fourth spatial dimension would look like in our 3D World. I show you what crazy stuff would happen if a 4th dimensional being were to move 4D objects through our 3D space. Weird things happen like the sudden appearing of objects, shape changing, sudden mirror imaging and more! This video is helpful to understanding a 4th spatial dimension using the simplest object...a sphere. This is easier than a tesseract to understand because it looks the same from all directions.

WARNING:
If you use the information from this video for your own projects then you assume complete responsibility for the results.

My Other Channel:
https://www.youtube.com/channel/UCA19mAJURyYHbJzhfpqhpCA

For more awesome videos checkout:
How I Made an Ant Think It Was Dead—The Zombie Ant Experiment
https://www.youtube.com/watch?v=ZPw9dSV6y2c

What Happens if You Open a Vacuum Chamber Under Water? And Do Vacuums Float?
https://www.youtube.com/watch?v=VugR1WdAOQw

Can Light be Black? Mind-Blowing Dark Light Experiments!
https://www.youtube.com/watch?v=p-OCfiglZRQ

GOLD Mirror-Polished Japanese Foil Ball Challenge in a Vacuum Chamber!
https://www.youtube.com/watch?v=5Blt_CJ29WQ

Mirror-Polished Japanese Foil Ball Challenge Crushed in a Hydraulic Press-What's Inside?
https://www.youtube.com/watch?v=oJ2faqXlU1s

Mixing the World's Blackest Paint With the World's Brightest Paint (Black 2.0 vs LIT)
https://youtu.be/x5L4_GXePuk

Is it Possible to Unboil an Egg? The Amazing Uncooking Experiment!
https://youtu.be/QNV4gHWZ9p4

What if You Try To Lift a Negative Mass? Mind-Blowing Physical Impossibility!
https://www.youtube.com/watch?v=uAJlg8MDAlU

What Does a Giant Monster Neodymium Magnet do to a Mouse?
https://www.youtube.com/watch?v=V8-JfSXPDp0

The Worlds Blackest Black vs The Worlds Brightest Flashlight (32, 000 lumen)—Which Will Win?
https://www.youtube.com/watch?v=AaFdCvnV8PM

How Much Weight Can a Fly Actually Lift? Experiment—I Lassoed a Fly!
https://www.youtube.com/watch?v=-xZoOUd172Q

If You Fly a Drone in a Car, Does it Move With It? (Dangerous In-Car Flight Challenge)
https://youtu.be/XjTj-tGPSWE

Can Flies Actually Fly in a Vacuum Chamber?

https://www.youtube.com/watch?v=C4h-AS729JM

I Let a Venus Flytrap Digest My Finger For a Day–Little Shop of Horrors Challenge!
https://www.youtube.com/watch?v=tPLuWcOGBCE

Drawing On Water-It is So Surreal!
https://youtu.be/3NZ-cAf8Bbw

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0:20 AI "Stop Button" Problem - Computerphile

AI "Stop Button" Problem - Computerphile

How do you implement an on/off switch on a General Artificial Intelligence? Rob Miles explains the perils.

Part 1: https://www.youtube.com/watch?v=4l7Is6vOAOA
Rob's Original Discussions on General AI: https://www.youtube.com/playlist?list=PLzH6n4zXuckquVnQ0KlMDxyT5YE-sA8Ps

Stop Button Solution?: https://youtu.be/9nktr1MgS-A

More from Rob Miles: http://bit.ly/Rob_Miles_YouTube

Thanks to Nottingham Hackspace for providing the filming location: http://bit.ly/notthack


http://www.facebook.com/computerphile
https://twitter.com/computer_phile

This video was filmed and edited by Sean Riley.

Computer Science at the University of Nottingham: http://bit.ly/nottscomputer

Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com

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