Ever noticed those white squares on top of traffic lights? Here's what they're for Jami Gertz, Sixteen Candles actress-turned-billionaire, makes rare public appearance We asked 3 dietitians to pick ...

Anna's hummingbirds can reach top diving speeds of around 60 mph, but their normal flight speed is around 25-30 mph. During flight, the little birds can reach nearly 10 g's of force. When diving, ...