Two Large Needles in a Cork Balanced on a Central Needle to Make Them Revolve Easily
If a good compass is brought carelessly in contact with a magnet, the poles may become reversed and the north end will no longer point to the north but to the south until the current has been reversed again by bringing the opposite pole of the magnet in contact with the compass.—Contributed by W. H. Albright, Bellevue, O.
Thawing Out Frozen Pipes
When the water pipes connecting a range boiler become frozen, get a plumber and avoid an explosion of the water back. If, however, the frozen pipe is a cold-water pipe in no way connected with the hot-water boiler, it can be thawed out as follows:
The Faucet is Turned Upwards and Opened and Alcohol Poured In on the Ice
Procure some grain alcohol—not denatured or wood alcohol—and after turning the spigot upward or upside down, as shown, open it and pour in the alcohol. When the water begins to flow turn it to its proper position.—Contributed by James M. Kane, Doylestown, Pa.
A Wire Clothespin
