Light travels very, very fast. The speed of light in a vacuum (an area empty of matter) is around 186,000 miles per second (300,000 kilometers per second). Light travels slower through different mediums such as glass, water, and air. Isaac Newton investigated sunlight by shining it through a glass prism; after the prism refracted the light, he saw a spectrum of colors. He recognized that sunlight was made up of many colors.
Sound is equally amazing! Did you know that the loudest natural sound on earth is caused by an erupting volcano? And that dogs are capable of hearing sounds at a much higher frequency than humans can, but flies cannot hear any kind of sound, not even their own buzzing? And that in order for a whip to crackle or make the noise it creates, it must travel faster than the speed of sound?
In this awesome class, we will explore light, lightning, earthquakes, sound, and the various properties of sound (including echoes, transmission, and reflection). Amp it up! It’s going to be “good vibrations” all the way!
- Minimum recommended age: 11
- Instructor: Ms Hansa Sigar
- Thursdays, 12:45-1:45 PM ET
- 8 classes
- November 11, 18, December 2, 9, January 6, 13, 20, 27 (no class November 25, December 16, 23, 30)