This looks like something out of a video game, but it's for real. Some parkour masters can scale a building by jumping back and forth between two facing vertical surfaces, zigzagging upward. Seriously, check it out right now, I'll wait. (It's the move that starts at 0:10 in the clip.) …
Read More »Tuariki Delamere’s Somersault Could Have Launched a New Era in the Olympic Long Jump
Catch it live: The Men's Long Jump Final at the Paris Olympics will be held on Tuesday, August 6, at 2:20 pm ET. The Women's Final is on Thursday, August 8, at 2 pm ET. Whether an athlete wins gold or silver at the Summer Olympics can turn on the …
Read More »How to Run on the Moon
In the future I'm sure there will be a city on the moon. We know how to get there, it's super close, and it could be great for further space exploration. However, there's a problem with living on the moon for any length of time: the weak gravitational field, which …
Read More »The Quest to Map the Inside of the Proton
The original version of this story appeared in Quanta Magazine. Physicists have begun to explore the proton as if it were a subatomic planet. Cutaway maps display newfound details of the particle’s interior. The proton’s core features pressures more intense than in any other known form of matter. Halfway to …
Read More »Why Is Our Solar System Flat?
Some of my favorite things to look for in the night sky (besides the International Space Station) are the planets. If you need help finding them, I recommend Heavens-Above. It's a website where you can enter your location and it will show you what's currently visible in your area. But …
Read More »Why the Polar Vortex Is Bad for Balloon Artists
It's been crazy cold this week, even down where I live in Louisiana, thanks to an outbreak of a polar vortex. This frigid air is bad for all kinds of things, including football helmets, apparently. But it's actually a great time to demonstrate one of the basic ideas in science: …
Read More »How to Measure the Impact From a Collision
A batter hits a baseball, NASCAR has a 21-car crash, or maybe Thor punches the Hulk. When one object collides with another, we can describe the interaction with an impact force. But putting a specific number on that force is actually quite difficult.Let’s go over some methods we can use …
Read More »Could a Cockroach Survive a Fall From Space?
I saw this post on Reddit: Would a cockroach survive a fall from the stratosphere? Oh, what a lovely question. But why stop there? The stratosphere only goes up 50 kilometers—what about a cockroach falling from outer space? Space starts at the Kármán line, which is 100 kilometers up (or …
Read More »The Physics of Faraday Cages
The world relies on electromagnetic waves for communications: Wi-Fi, Bluetooth, 5G, even radio waves. But suppose you want to prevent a device from communicating—or interfering—with the rest of the world. You can't block EM waves, but you can cancel them by surrounding the device with an electrically conducting material. We …
Read More »Which Spider-Man Is Stronger: Tobey Maguire or Tom Holland?
Although Spider-Man started as a comic book character, he has made his way to live-action video several times. I remember seeing him appear on The Electric Company in the 1970s for a short skit; it was cool but a little odd. In the modern era of live-action Spider-Man movies, we …
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