Tag Archives: sphere
All The Water On Planet Earth
This image is phenomenal. It depicts how little of the Earth is actually composed of water. The single blue sphere, with a radius of roughly 700km, contains all the water in planet Earth. Explanation from APOD: “How much of planet … Continue reading
Billiard Ball Versus The Earth
This isn’t a “who will win in a collision” contest, like the picture would suggest. Oh no, this is more important than that. This is a smoothness contest. Presented here is proof that the Earth is smoother than a billiard … Continue reading
How To Turn A Sphere Inside Out
Absolutely fascinating and ever-so-slightly mind-boggling video of how to turn a sphere inside out. They do an excellent job of explaining what’s going on, and yet, when I see the whole illusion, it still makes my brain go ‘bwah?’. Definitely … Continue reading
