Youtuber Magnetic Games uses various neodymium magnets to create magnetic accelerators, which he uses to propulse ball magnets at high speed. Watch them in action in the video above. [Magnetic Games | Via The Awesomer]
Here’s a video by Youtuber CGP Grey explaining why hexagons are the bestagons, meaning the shape that is not the most effective at covering a surface for storage purposes, but also the most structurally resistant. [CGP Grey]
By the end of the 21st century, humanity is becoming desperate. Decades of heatwaves and droughts have led to unusually poor harvests, while the warming oceans yield fewer fish each year. In the tropical zones, millions suffer from famine and resource wars have made millions more flee to the north. As things quickly get worse, […]
Youtuber The Hacksmith recently built a real life retractable plasma lightsaber that can actually cut through metal, but he only released the demo video of it in action today. For those who are curious, the beam is made from a mix between liquid propane gas and oxygen, “mixed in a really fancy laminar flow gas […]
A simple video explaining how anesthesia works by the folks at TED Ed. Check it out! When under anesthesia, you can’t move, form memories, or — hopefully — feel pain. And while it might just seem like you are asleep for that time, you actually aren’t. What’s going on? Steven Zheng explains what we know […]
In the past 3,000 years, many populations have evolved genetic adaptations to their local environments. People in Siberia and the high arctic are uniquely adapted to survive extreme cold. The Bajau people can dive 70 meters and stay underwater for almost 15 minutes. So what are other recent changes? And will our technological innovations impact […]
Nostalgia was once considered an illness confined to specific groups of people. Today, people all over the world report experiencing and enjoying nostalgia. But how does nostalgia work? And is it healthy? Clay Routledge details the way our understanding of nostalgia has changed since the term was first coined in the late 17th century. Lesson […]
Spines are naturally curved, not straight, so what good posture actually looks like isn’t as straightforward as you might think. [SciShow]
What exactly is CRISPR Cas9? Where did it come from? How are scientists using it? And what are the ethical ramifications? Find out in this science-ified version of “7 Rings” by Ariana Grande, by 8th graders from The Nueva School. [Science With Tom]
Even though doctors have been using general anesthesia for nearly 200 years, they haven’t really understood the details of how it temporarily shuts down your brain — until now. [SciShow]