Science Stunts (Nov, 1953)
The trick is to remove the slip of paper from under coin perched on lip of glass without disturbing coin. Bring forefinger down sharply against paper strip, half way between center of coin and finger holding other end of paper. Presto! Coin remains as paper is pulled away with downward thrust of forefinger of free hand. Small glass has greater curve to balance the coin.
If hard-cooked and raw eggs get mixed up in your refrigerator, just spin them in a dish to tell them apart. The hard eggs will spin; the raw eggs will dawdle and stop.
Fog-horn sound made by blowing across top of bottle will be repeated audibly in an identical bottle held slightly away from the ear of a second person.
Get ready for “matchbox magic” by making a tunnel of the opened outer casing of match box and placing the drawer on the far side of it. Challenge anyone to make the drawer come through the tunnel without touching anything! Now prove it can be done by cupping your hands behind drawer and blowing smartly into your palms. Vacuum created will pull drawer.