#smarter
First Images of Black Holes! | Veritasium
The Event Horizon Telescope Collaboration observed the supermassive black holes at the center of M87 and our Milky Way galaxy (SgrA*) finding the dark central shadow in accordance with General Relativity, further demonstrating the power of this 100 year-old theory.
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How to Understand the Image of a Black Hole | Veritasium
We are about to see the first image of a black hole, the supermassive black hole Sagittarius A* at the center of the Milky Way galaxy. But what is that image really showing us? This is an awesome paper on the topic by J.P. Luminet: Image of a spherical black hole with thin accretion disk Astronomy and Astrophysics, vol. 75, no. 1-2, May 1979, p. 228-235 https://ve42.co/luminet
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Immune cells tackle a human obstacle course | nature video
Immune cells inside the body need to make their way through densely packed tissues, squeezing through gaps and finding the most efficient route. During metastasis, cancer cells may make use of a similar type of locomotion. Now, experiments reveal how the cells probe different paths and use their bulky nucleus to gauge the size of gaps. Read more about this research: https://www.nature.com/articles/s4158…
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Why Do Compressed Air Cans Get Cold? | minutephysics
This video is about compressed air cans (aka gas dusters) and why they get cold when you spray them. They cool off because the refrigerant inside (1,1-difluoroethane) is under pressure and boils off when the pressure lowers, and energy lost to the latent heat of vaporization cools the can a lot.
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This is the fifth video in my Amazon Gift Cardcontest.
Manipulating the YouTube Algorithm - (Part 1/3) | SmarterEveryDay
My first video of a 3 part series on “coordinated inauthentic behavior”. Thanks to ExpressVPN for sponsoring this series.Renée Diresta is a Mozilla Fellow in Media, Misinformation, and Trust, where she researches unintended consequences of algorithms and works towards helping machines make better decisions. Renee also writes about disinformation and the changing face of information war — check out her essay “The Digital Maginot Line” (https://www.ribbonfarm.com/2018/11/28…) — and is a contributor to Wired Ideas (https://www.wired.com/author/renee-di…).
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What If We Detonated All Nuclear Bombs at Once? | Kurzgesagt – In a Nutshell
What happens if make a huge pile from all 15,000 nuclear bombs and pull the trigger? And what happens if we make an even bigger pile?
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The History of Video | Veritasium
I always wanted to know why film looked better than video. Moving electronic images have as long a history but were invented for a different purpose. This video was sponsored by B&H Photo: https://www.bhphotovideo.com
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The Paradox Paradox | Vsauce3
Is time travel a paradox in itself ? And what kind of time travel paradoxes are there ?
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This is the first video in my Amazon Gift Cardcontest.
Can Humans Sense Magnetic Fields? | Veritasium
Research has found human brains can pick up on rotations of geomagnetic-strength fields as evidenced by drops in alpha wave power following stimulus. For more, see https://ve42.co/magneto
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A 5G World Is on the Horizon, But How Will It Work? | Seeker
The rumors of a 5G wireless network, with the fastest connectivity we’ve ever experienced, is finally coming this year. Read More: Qualcomm already has a new 5G chip that promises sleeker, long-lasting phones https://www.cnet.com/g00/news/qualcom…
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How Tech Cures Pain Without Opiates | CNBC
Living in poverty or rural areas increases the odds of suffering from chronic pain, and one-fifth of adults in the U.S. live with the condition, according to a new study from the Centers for Disease Control and Prevention.
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Check out Quantum Questions for some great physics and science stuff.
I chose to give @quantum-questions a shout out for their big support over the last weeks. They got my number one supporter these days.
How to make inverted bubbles | Steve Mould
You can make a movable hole in soap film with a loop of thread. It’s surprising when you first see and it’s fun to think about why it behaves the way it does. It’s also a useful metaphor for cell membranes so I explore that a little bit too.
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How To Make A Cartesian Diver | DONG
A tutorial for a home made pressure measurement device.
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How tall can a tree grow? - Valentin Hammoudi | TED-Ed
What makes a tree grow tall? And do trees ever stop growing? Explore how photosynthesis and gravity can affect and limit the height of trees.
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How Flexible Machines Could Save The World | Veritasium
I visited the Compliant Mechanisms Research group at Brigham Young University and spoke to Professor Larry Howell: https://www.compliantmechanisms.byu.edu At the above link, you can download 3D-print files to make some of the objects in the video, plus learn more about compliant mechanisms.
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