Why do we have water in our bodies? –Angelika, 12, Cathedral City, CA
rcwebberDear Angelika,
Believe it or not, we are mostly water. Of course, you may have noticed we aren’t sloshing around and spilling everywhere.
Read More ...How do I program a computer? –Ammon, 11, Magna, UT
rcwebberDear Ammon,
Everything our computers do, they do because we program them to do it. Maybe you want to design a game or an app that’s brand new. To create that game or app, you have to help your computer understand what to do.
Read More ...Dear Dr. Universe: How do our ears work? -Aryana, 11, Ohio Dear Aryana,
rcwebberThe chirps of birds. The squeaks of mice. The barks of dogs. In a world full of different sounds, our ears take in almost everything. But it takes more than just our ears to hear.
Read More ...Dr. Universe: I have a ginormous question for you. How come non-biodegradables take like a million, billion, zillion years to decay? -Madeline C., age 8
rcwebberDear Madeline,
You’re right. It can take a really long time for some things to decay.
If we buried an apple peel in the backyard it might only take a few weeks to break down into the soil. But if we buried a plastic water bottle, it would probably still be there hundreds of years from now.
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