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The Brightest Part of a Shadow is in the Middle

Adults Physics
Why is there a bright spot behind spherical objects?

How do tornadoes form?

Adults Physics
Tornadoes are the most violent storms on Earth, with wind velocities that can exceed 200 miles per hour. How do these terrifying cyclones form? Meteorologist James Spann sheds light on the lifespan of tornadoes as they go from supercell thunderstorms to terrible twisters before eventually dissolving back into thin air.

Is Glass a Liquid?

Adults Physics
Stained glass is thicker at the bottom - so is it a liquid? Earth's mantle enables plate tectonics, so is it a liquid?

Theory vs. Hypothesis vs. Law

Adults Physics
Think you know the difference?

[HD] Loki Lego Launcher - High altitude balloon

Adults Physics
Our family had a great time with this Loki Lego Launcher project. Not only did our kids get a big sense of accomplishment by successfully sending a balloon to near space, but it was a ton of fun and we got some fantastic footage too.

Can You Perceive Acceleration?

Adults Physics
How do our eyes scan across a landscape? Contrary to popular belief, they don't scan smoothly across a scene, they observe a series of images. The eye is capable of panning smoothly however. If something moves in your field of view, your eyes track it smoothly.

Is time travel possible?

Adults Physics
Time travel is a staple of science fiction stories, but is it actually possible? It turns out nature does allow a way of bending time, an exciting possibility suggested by Albert Einstein when he discovered special relativity over one hundred years ago. Colin Stuart imagines where (or, when) this fascinating phenomenon, time dilation, may one day take us.

Hawking presents new idea on how information could escape black holes

Adults Physics
The presentation was made at the Hawking Radiation conference, which was co-hosted by the theoretical physics institute, Nordita, and the University of North Carolina, on the campus of KTH Royal Institute of Technology in Stockholm. Nordita is driven by both KTH and Stockholm University.

Elliptical Pool Table

Adults Physics
White ball goes in hole every time no matter where you hit it. But first, find the focus point.

What is Dark Matter and Dark Energy?

Adults Physics
What is dark energy? What is dark matter? Well, if we knew exactly we would have a nobel prize - we know that they exist though. So what do we know about those strange things?

The Banach-Tarski Paradox

Adults Physics
Holy moly I'm gonna tear my $100 bill into five and rearrange it and boom! I have $200.

What if there was a black hole in your pocket?

Adults Physics
What would happen to you if a black hole the size of a coin suddenly appeared in your pocket? Lets find out!

Surprising Applications of the Magnus Effect

Adults Physics
How far would a basketball with backspin go?

$10,000 Gold Apple Watch Edition Crushed By Magnets

Adults Physics
What better way to put the 38mm 18k yellow gold Apple Watch Edition to use then to crush it with 2 powerful neodymium magnets equaling to 650 pounds of force!

What is the universe made of?

Adults Physics
The atoms around you have existed for billions of years -- and most originated in the flaming, gaseous core of a star. Dennis Wildfogel tells the captivating tale of these atoms' long journeys from the Big Bang to the molecules they form today.

The Truth About Toilet Swirl

Adults Physics
We each repeated the experiment 3 times, and got the same results every time. For those of you who might be skeptical, great! A right circular prismatic kiddie pool is only $10 and you can do the experiment for yourself at your latitude. There's really no reason you shouldn't do it for yourself.

What's The Loudest Possible Sound?

Adults Physics
It's definitely higher than "11"

The Essentials of Energy

Adults Physics
The world of energy is a confusing place. What's better, nuclear or solar? What's the difference between fluorescent bulbs and LEDs? What's the difference between energy and power? And what the heck is a kilowatt-hour?!

How batteries work

Adults Physics
Batteries are a triumph of science-they allow smartphones and other technologies to exist without anchoring us to an infernal tangle of power cables. Yet even the best batteries will diminish daily, slowly losing capacity until they finally die. Why does this happen, and how do our batteries even store so much charge in the first place? Adam Jacobson gives the basics on batteries.

Explained: Beaker Ball Balance Problem

Adults Physics
This is the solution to: http://youtu.be/QD3hbVG1yxM

Just how small is an atom?

Adults Physics
Just how small are atoms? And what's inside them? The answers turn out to be astounding, even for those who think they know. This fast-paced animation uses spectacular metaphors (imagine a blueberry the size of a football stadium!) to give a visceral sense of the building blocks that make our world.