Light and Sound (Science Foundations)

Inhaltsangabe

Our world is largely defined by what we see and hear, but our uses for light and sound go far beyond simply seeing a photo or hearing a song. Lasers, concentrated beams of light, are powerful tools used in industry, research, and medicine, as well as in everyday electronics like DVD and CD players. Ultrasound, sound emitted at a high frequency, helps create images of a developing baby, cleans teeth, and much more. Light and Sound teaches how light and sound work, how they are used in our day-to-day lives, and how they can be used to learn about the universe at large.

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