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Name: Stacye
Status: educator
Age: 30s
Location: N/A
Country: N/A
Date: 2000-2001
Question:
How does one make radiowaves travel from place to place using a laser? This is for a science fair project for a student, and I have lost the plans. It uses a radio and a laser pointer and a speaker, and maybe one or two other simple things.

Replies:
Perhaps a small mirror (even a smooth piece of aluminum foil) placed on the speaker of the radio? You may also need to adjust where on the speaker you place the mirror. This probably works best with a paper cone type of speaker. Try placing the mirror on the center of the speaker and on the wall of the cone, among other positions. Be careful to avoid direct eye exposure to the laser!

Bradburn


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