With materials found in any house, you can turn a regular bag into a “bomb” with a time-release mechanism.
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A festive experiment for Hanukkah, Passover, or anytime hard boiled eggs are on the menu.
Here’s a way to remotely light a candle that has just gone out, using the smoke rising from the wick.
Write a secret message that only you can read, using just some magic tape.
