Hold the CD in the sunshine. Or if it's a cloudy day, turn out the lights and shine your flashlight at the CD. Hold your piece of white paper so that the light reflecting off the CD shines onto the ...

Find out where to be and what to do for the eclipse experience of a lifetime. Be ready. On August 12, 2026, the first total solar eclipse for mainland Europe since 1999 will be visible from parts of ...

See yourself as others see you in this cylindrical mirror. A flat mirror will always reflect an image that's right side up and reversed right to left. A cylindrical mirror can produce images that are ...

Discover why your favorite cat videos don't leak out of optical fibers. A transparent material, such as glass or water, can actually reflect light better than any mirror. All you have to do is look at ...