Scientists have long debated the relationship between birds and reptiles. After all, there are some physical similarities between the species, from the eggs the

From ancient times, people have wanted to learn about the sky. The stars, planets, and other heavenly bodies have been observed for centuries, and theories have

Babies crying, school bells ringing, cars roaring by, the ding signaling that a new text message has arrived . . . sounds are all around us, but how are they ma

What do CDs, lamps, lasers, and microwave ovens all have in common? They all use the power of light and optics! From ancient times when scientists puzzled over

Scientists have known for a long time that things move in predictable patterns. It took an apple falling to help further their knowledge, though. We now know ho