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How does an eclipse happen?

Hello Dr. Universe: I was wondering, how does an eclipse happen?

– Susan, 13, San Francisco, CA

 

Dear Susan,

It just so happens the Great American Eclipse is coming up on Aug. 21, 2017. This solar eclipse will be the only one visible from across the lower 48 states in nearly a hundred years. When it happens, parts of the country will experience darkness for a couple minutes during the day. » More …

How are ants so strong?

Dear Dr. Universe: I would like to find out how ants are so strong. How is it possible that they can carry weight that is heavier than themselves?

–Anita, 11

Dear Anita,

Ants are pretty good little weightlifters. My friend Rich Zack, a scientist at Washington State University who studies insects, knows a lot about ants. One kind of ant that he has studied can carry up to 20 times its own weight. » More …

Why can’t we just print a bunch of money to make everyone rich?

Why can’t we just print a bunch of money to make everyone rich?

– Daniel, 8

Dear Daniel,

It sure sounds like a nice idea. Print a bunch of money and everyone gets rich. We could buy anything we wanted. Ah, if only it were that easy. It turns out printing more money would have a much different outcome than we might like to imagine. » More …