Electro Magnets Clear Tacks Off Universal City Streets (Mar, 1930)
Or you could just sweep the streets…
Electro Magnets Clear Tacks Off Universal City Streets
ELECTRO magnets on a bar mounted on wheels and trailed after a car make the streets of Universal City, California, safe for motorists. The magnets pick up nails, tacks, pieces of wire, lost bolts and nuts and a wide variety of other metal objects which if left in the streets would cause punctures and other tire trouble. Frank Graves, electrical chief of the city, invented the puncture fighter.
Speed in Transportation (Jan, 1934)
The fastest conventional trains in service today manage around 200 MPH. The fastest speed ever achieved by a railed vehicle was set in 2003 by a four-stage rocket sled tested at Holloman Air Force Base which clocked in at 6,481 mph.
Speed in Transportation
By HUGO GERNSBACK
DURING the next few years, we are to witness a series of strenuous competitions between our railroads and the airplanes. Only too late have the railroads awakened to the fact that airplanes are cutting in seriously into their business. Because of the superior speed of the airplane, the railroads which, during the last decade, lost much business to the automobile, are now beset by a new worry.