FAMILY FUN

New Zealand Tablet, 12 September 1912, Page 62

FAMILY FUN

Interesting Experiments with Eggs.—Take an ordinary water-bottle with a neck too small to pass an egg through it. A sheet of paper is lighted and dropped into the bottle, and at once a hard-boiled egg, freed from its shell, is pressed into the mouth of the bottle so as to hermetically seal it. The combustion of the paper inside the bottle produces a partial vacuum, and •the outside pressure of the atmosphere at once begins to act on the egg, pressing it through the neck. It elongates itself gradually, and shortly drops into the bottle with a detonation similar to that which boys make when they burst a blown-out paper bag. Puncture the shell of the egg with a pin and extract the contents through the hole thus made. When the interior of the shell is quite dry pour fine sand through the pin-hole until the egg is about one-quarter full. Then seal up the hole with white wax. Tell your friends that you can make the egg stand on the edge of a knife, the rim of a glass, or wherever you wish. The, secret is to tap the egg gently every time you wish a change of position. The sand will then settle in the bottom, and keep the egg in the position you desire..