How is this used in everyday life?

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How is this used in everyday life?

My daughter did this for her science experiment but I can't find any supporting information to put on her board. Is this sort of thing used in everyday life?. Maybe a website link?

http://www.all-science-fair-projects.com/science_fair_projects/89/425/1580c2ea769644c66a09aaa2fb7e7d49.html

2007-03-18 09:31:21 · 2 answers · asked by Tekay 1 in Science & Mathematics ➔ Other - Science

2 answers

The principle is used on any TV or audio remote control. The information on the light beam in these is digital, rather than sound, but the principle is the same.

2007-03-18 09:40:57 · answer #1 · answered by Anonymous · 0⤊ 0⤋

On the display of any audio equipment perhaps, or it might be useful in equipment for deaf people.

2007-03-18 09:34:03 · answer #2 · answered by dudara 4 · 0⤊ 0⤋