A Finger-Trap Trick
It is easy to fool one’s friends with the little joker made to trap a finger. It consists of a piece of paper, about 6 in. wide and 12 in. or more long. To prepare the paper, cut two slots in one end, as shown, and then roll it up to tube form, beginning at the end with the cuts, then fasten the end with glue. The inside diameter should be about ¹⁄₂ inch.
It is Easy to Insert a Finger in the Tube, but to Get It Out is Almost Impossible
It is Easy to Insert a Finger in the Tube, but to Get It Out is Almost Impossible
When the glue is dry, ask some one to push a finger into either end. This will be easy enough to do, but to remove the finger is a different matter. The end coils tend to pull out and hold the finger. If the tube is made of tough paper, it will stand considerable pull.—Contributed by Abner B. Shaw, N. Dartmouth, Mass.
¶When mercury is spilled it can be picked up with a medicine dropper.
¶When mercury is spilled it can be picked up with a medicine dropper.