How to Make Your Body Act as a Radio Receiver
A historical treatment notes the human body as a conductor and potential antenna for radio currents. It describes experiments with voltage, current, and multiple people forming an improvised listening setup, illustrating body as resistance, condenser, wave-collector, cable, and telephonic receiver. The article cites French science and early demonstrations of radio-related phenomena.
MENTIONED IN THIS ARTICLE
Sal
Nature
Magnet Sharpening Razor Edge Claim by Philadelphia Man
A Philadelphia man Thomas G. Lovegrove promotes a magnet based method to realign razor teeth instead of a leather strap. A U shaped magnet in a leather case aligns minute teeth by attraction, sharpening dull edges instantly. A holder can hold multiple blades for parallel sharpening. The feather case includes a cap.
MENTIONED IN THIS ARTICLE
Philadelphia
Thomas G. Lovegrove
Toy Rabbit Wiggles Its Ears II
Felix J. Lemieux of Chicago invents a bag shaped like a rabbit head that receives a child's hand. A wooden or cork skull houses a shaft with two levers controlling ear movements via wires. Pulling a nose loop draws the nose and mouth inward, while a coil spring returns them. Each ear moves independently, powered by levers and cotton stuffing.
MENTIONED IN THIS ARTICLE
Felix J. Lemieux
Chicago
Parachute concept aims to save airplanes in emergency
The article discusses a large aircraft parachute system proposed to float disabled planes to ground safely. It describes mechanisms to detach the parachute instantly on landing, the need for reliability and simplicity, and a releasing cockpit control. It also notes demonstrations at Wright Field and a safety device by Albert Jost of Yonkers.
MENTIONED IN THIS ARTICLE
Wright Field
K. L. Hoffman
Dayton
Ohio
Albert Jost
Yonkers
N.Y
Embroidery by Machine Advances in Threaded Art
The piece explains how machine embroidery, now cheap and superb, surpasses handwork. German and Swiss origins produced long steel frames with up to 600 needles fed by many bobbins. A designer pencil guides a cardboard pattern while the fabric moves, yielding multiple copies via pantograph mechanics and auto threading.
MENTIONED IN THIS ARTICLE
Germany
Switzerland
Why Divers Yawn for Safety
A diver undersea may experience ear pain when internal tubes close. Yawning or swallowing clears them. blowing with the nose against the helmet also helps. If air quality is poor or supply is inadequate, remain still and signal for more air. Avoid rushing to the surface to prevent dangerous pressure changes.
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Essex
England
Rayleigh
Ren