what causes acid rain? How scientists were able to largely eliminate this major environmental threat.

In 1963, scientists studying Hubbard Brook Experimental Forest in New Hampshire made a shocking discovery. Their most recent rainfall samples were nearly 100 times more acidic than usual. At these … Read More

Why are planes usually painted white?

If you look carefully at non-military airplanes such as a commercial airplane, you will notice that most are painted white. Ever wondered why airplane companies use white airplane painting usually? … Read More

When is the next Ice Age?

Twenty thousand years ago, the Earth was a frigid landscape where woolly mammoths roamed. Huge ice sheets, several thousand meters thick, encased parts of North America, Asia, and Europe. We … Read More

What do animals do when they hibernate?

Hibernate – Onboard the spacecraft, the astronauts preset the timer, enclose themselves in capsules, and fall into a deep hibernation that’ll carry them several hundred years into the future. This … Read More