We're sending rovers to Mars in an effort to figure out our place in the universe. But what about our place on Earth? Sure, Earth is a big place, but you might be surprised by how insignificant we are within its mammoth mass.
What would happen if everyone on the planet got together and jumped at the same time? I'll let YouTube user vsauce explain the details -- but it wouldn't change the world, so to speak. If you want to do exactly that, stick to calling people names on the internet. That's how some people make a difference, right? [YouTube]