Wasabi vs. Chili Peppers
A listener asks: Why does wasabi's kick disappear so quickly while the heat of chili peppers can …
Why Is It?
Plant Gravity
A listener asks: Regardless of how you plant a seed, the roots always grow downward and the shoots …
Bloody Evidence
DNA is found inside the nucleus of a cell. But red blood cells have no nucleus, so a listener asks: …
Speedy Dolphins
A listener asks: Is it true that dolphins can swim as as fast as 20 miles per hour?
Tree Carbon
A listener asks: Which trees are more effective at removing carbon dioxide from the atmosphere, …
Fruits & Vegetables
A listener asks: Do fruits and vegetables lose their nutrients if stored too long?