Why is the sky dark at night? You might think the answer is obvious - the sun isn't up! But the only reason the sky looks blue during the day is that sunlight scatters off of the atmosphere -...
Every day the world consumes 300 tones of caffeine -- enough for one cup of coffee for every man, woman and child. The world's largest buyer of coffee, the US, has to import nearly all of this...
Hey it's me Destin welcome back to Smarter Every Day. So I've been learning a lot about guns underwater, which is pretty cool. I mean, in the first video I learned all about what's happening back here...