Let's look at hydrogen. Hydrogen on earth comes in two forms. One that it's bounded to carbon, and t...

Ok, take a look at these two photos. Now, what story did your mind make up? When you saw the first p...

"So sound—sound is usually made, not usually, always made by striking of two things together, like c...

The single most important experiment ever done in physics is the double-slit experiment. The double ...

Metallurgy is amazing. So, copper is one of the few metals that can be mined in directly usable form...

So, GPS satellites are 20,200 km above the surface of the Earth, which is more than twice the diamet...

Here's the thing about rainbows: Have you ever seen a rainbow which is at 30 degrees to you, or even...

Have you watched a crescent moon? A moon that has a tiny sliver of lighted surface. If you watch clo...