Harvard Natural Sciences presents a nifty experiment that shows how a liquid nitrogen-cooled metal substance (YBCO) can cause a neodymium magnet to levitate. As the disc cools, it becomes a superconductor, causing the Meissner effect to kick in.
While we’re certain there’s way more at play in the physics of space flight than EC Henry’s video mentions, it’s still interesting to learn about the relative speeds of various ships from the Star Wars universe, and what sort of drag coefficient their designs would result in.
More cars than ever are relying on electricity for propulsion, but using electric motors and batteries for aircraft poses challenges. Real Engineering explores whether a pure electric flyer would be possible, and why it’s so difficult to achieve. Caution, physics equations ahead.
In theory, energy consumed by a black hole is trapped forever. But it turns out it might be possible to harness the rotational energy of a spinning black hole to do everything from powering civilization to creating the biggest explosive device ever. Kurzgesagt explains.
Most of the aircraft have traditional wings or helicopter-style blades to take flight. But this contraption works very differently. Watch as an ingenious kid named Finley shows Essential RC his plane that takes advantage of the spinning Magnus Effect to stay airborne.
Engineer Mark Rober and teacher Al “Doc Fizzix” Balmer explain the physics of these primitive race cars that get their power solely from the energy stored in a mousetrap’s spring. Along the way, you’ll learn about the principles of mechanical advantage, levers, and wheels.
You never want to get too close to a mound of fire ants. But from the comfortable distance of your browser, they’re neat little buggers. Vox explores some of the fascinating ways in which colonies stick together to form structures, and how they can act as both a solid or fluid.
Kurzgesagt explores string theory, and how it attempts to explain the nature of the universe. It’s supposed to solve the incompatibilities between quantum and gravitational physics by describing particles as “strings” rather than points. Yeah, we’re still confused.
Destin from Smarter Every Day teamed up with Gav and Dan from The Slow Mo Guys to see what exactly happens when a bullet hits a piece of bulletproof acrylic, both with a bullet that can’t make it through, and then with a .50 cal that can. Watch The Slow Mo Guys’ video here.
Part of how CGI has gotten so much better in recent years is the development of systems for specific types of physical realism. Here Soeren Pirk demonstrates an amazing system designed for simulating the motion of tree branches, and the way wood burns when set on fire.
With the help of his fans around the globe, Destin Sandlin digs into a surprisingly deep and perplexing topic – measuring the steady state velocity of toppling dominoes. The slow-motion footage is fascinating to watch, and you’ll definitely feel smarter after this one.