Here’s the Navy’s newest electronic weapon—it won’t, kill a soul but its underwater sound waves will aid thousands.
By Frank Tinsley
AN electronic bomb which disperses sound instead of shrapnel may save the lives of many survivors of sea disasters.
See the man. He is throwing an apple to the lady in the water. The lady puts on a lifesaver and smiles at the camera. The man is angry. He wants his apple back. Now the lady is biting the stem of the apple. Her bathing suit is all dry. The apple is a Sav-A-Life. She is pulling the ring to activate it.
NEW LIFE PRESERVER HAS TWO PROPELLERS
Timid of sea travel because of his inability to swim, a Japanese lawyer of Los Angeles, Calif., has invented and patented a mobile life preserver. Hand cranks at the sides of the device turn a pair of diminutive propellers, enabling the wearer to advance at fair speed while remaining erect in the water. Thus a non-swimmer may reach a nearby shore without waiting to be picked up. The photograph above shows the inventor wearing his odd life preserver. Note the propellers and the hand crank that operates them.
Air Bubbles to Save Life at Sea
FOR more than two thousand years, sailors have known that a little oil, poured on the raging billows, will quiet them almost magically. In many rescues from a distressed ship during a storm, we read that oil has been used. A method, more efficient than simply pouring it over the ship’s side, is to put the oil into cloth bags, through which it will leak gradually, and tow them at the end of ropes, so that the oil is distributed very thinly. It is necessary only to have a thin film, to break the “surface tension” of the water; and the waves are no longer able to hold their height so readily.