Chapter 12 - Energy Everywhere
Light always travels in straight lines—that is, unless it bends or bounces off an object's surface. Take an enlightening look at light with these three easy experiments.
There's a good reason why your summer attire is lighter and brighter than your winter wardrobe. This easy experiment illustrates the power of albedo in black and white.
Talk about a long-term power source. For billions and billions of years, the Sun has been giving off energy that equals 4 x 1026 watts. What keeps the Sun burning so bright?
When does mixing every color under the rainbow create pure white rather than a murky brown or black? When light, not paint, is the medium—and you're subtracting, not adding, color.