If you’ve ever seen a glacier up close and personal, you know they’re a beautiful blue-green color that’s unlike just about any ice or water you’ve ever witnessed. It’s Okay to Be Smart reveals the science behind what we see, then gives us a 360º view inside an ice cave.
It’s not too hard to travel faster than sound, but amping things up to the speed of light is a whole other level. Life Noggin pontificates on the what might happen if we could exceed 186,000 miles per second. The whole slowing down light thing seems like a cheat though.
A while back, The Backyard Scientist built a massive mousetrap and used it to smash things. He decided to take all of the energy stored up in that giant spring and use it to drive an axle. Unfortunately, it seems as if its power should be measured in mousepower, not horsepower.
Individual insects have limited skills, but when they form a colony, the whole is much greater than the sum of its parts. Kurzgesagt explores the phenomenon known as “emergence” – which sounds like a great name for a flick where billions of ants rise up to take over the world.
It’s a nasty thought, but our bodies are teeming with billions of bacteria all of the time. At times, these microbes are helpful partners, doing things like digesting food, and at other times, they want to kill us. Kurzgesagt explores the delicate balance of the human microbiome.
Schlieren imaging is a method of visualization which plays with light refraction to capture images of normally invisible fluid patterns like air movement. Here, Veritasium walks us through a variant which uses colored filters to produce some astounding images.
Kyle Hill from Nerdist recently posted a brief clip that shows the crazy stuff that happens when you inject compressed air into a bed filled with sand. We spotted this 2012 video from The Royal Institution that shows much more, and provides an explanation of the physics at work.
Sight, smell, touch, taste, hearing. We’ve had it engrained our whole lives that those are THE five human senses, but there are many other things we can detect that don’t tie to an obvious sensory organ. Vox delves into some of our abilities which didn’t make the short list.
It’s the stuff of science fiction at this point, but it’s certainly worth exploring the idea that building a planet capable of supporting human life could be an alternative to colonizing an existing, less hospitable planet. Life Noggin ponders this question in this all-too-short video.
SciShow host Hank Green answers the question none of us were asking, as he explores the rather ludicrous sounding idea of sending our garbage to the nearest volcano, and then just dumping it in. We don’t really need to explain why this is a bad idea, do we?
Lots of us stayed outside to watch the big solar eclipse this week, but this isn’t the view any of us saw. Instead of looking up at the skies, the University of Wisconsin Madison time-lapsed weather satellite imagery to track the shadow of the moon as it crossed the US.