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Electronic
"magic"
YOU WILL NEED
+ your electronic sensor from
Experiment 19
+ as well as: a few friends
HERE'S HOW
1. Remove the "antenna." Now it's
time to invite a few friends to an
electronic magic show.
2. You and your friends should all join
hands in a row, with the first person
touching contact clip A and the last
person with his or her finger on
contact clip B.
3. Now, have one of your friends let go
of his or her neighbor's hand and
then touch the neighbor on the
nose or ear.
What do you see?
Sensors & Detectors
EXPERIMENT 20
45
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