Category : Science Projects And Inventions
YOU NEED:
• A coin
• A paper match
• A transparent plastic cup
• A pocket comb
Gingerly balance a coin on Its edge. Place a paper match stick on top as in the Illustration. Now upturn an
empty glass over the coin and the match stick.
The problem: Try to knock the match off without disturbing the coin. There is a condition: You are disallowed
from touching the glass and you cannot shake the table because the coin will fall.
HOW DOES IT WORK?
The trick is done by static electricity. Take a pocket comb and rub it vigorously on your shirt or skirt. Now
hold the comb close to the glass and the match will drop. The coin remains undisturbed.
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