DICK TRACY, the famed comic-strip detective character created by cartoonist Chester Gould, has been using a wrist radio for years in his fight against crime. Now the wrist radio is becoming a reality and Sylvania Products, Inc., has proved it by developing the tiny transmitter shown here. But it can’t receive signals such as Mr. Tracy’s. A separate, larger unit is used. This little radio has been made possible by the transistor, a tiny crystal device, which promises to expand greatly the field of electronics by making possible the manufacture of tiny electronic sets.
The Radio War
Not with bombs, bullets or blood-shed is the present World War raging Instead the nations of the world are disseminating propaganda by radio
France, Italy, Germany, Japan, Russia, England and even the United States are intensifying their radio campaigns. Each nation objects to the direct verbal assaults issued against it by the other nations partaking in this feud. The newspaper clipping at the right is only one of hundreds found in the daily press.
Oldest Radio Station Celebrates Its Sixteenth Anniversary
Only sixteen years ago the first regular entertainment program by wireless was broadcast. Program broadcasting originated with Station WWJ of the Detroit News in 1920, and at a sixteenth anniversary program in August one of the speakers was Dr. Lee De Forest, pioneer inventor of the industry, who talked over the original transmitting equipment he had devised.
Grandfather’s chair, “ears” and all, has been hauled down from the attic, dusted off, and given a new lease on life by Stereo Products Co., Severna Park, Md. By sticking loudspeakers into each of its side-”ears” and hooking them up to a stereo tape player, this company has come up with a new model of the old wing chair that provides an effect akin to listening with binaural earphones. Low volume assures semi-private listening.
If they have a battery that powers the radio for eight months why would the solar cells be necessary?
An experimental pocket-sized radio receiver, powered by energy from the sun, weighs only 10 ounces and will work more than eight months in total darkness without recharging. Developed by General Electric, the set uses a miniature storage battery, four transistors, and seven solar cells. During the day, light rays hit the solar cells which convert the sun’s energy to electrical current. This current powers the transistors and, at the same time, charges the storage battery which takes over at night. Artificial light, such as an ordinary 100-watt bulb, may be substituted for sunlight.
The Man Who Made Radio Talk
And Gave the Movies a Voiceâ€”The Dramatic Story of Lee De Forest, Inventor of the Audion Tube
By FRANK PARKER STOCKBRIDGE
THE story of Lee De Forest, and of his long and bitter court struggle for possession of the basic patents on the audion tube, runs parallel to the history of radio. Like most great inventors, he has been maligned, ridiculed, baffledâ€”and all but beaten. Today he emerges victorious, vindicated in his. claim to be called the father of radio broadcasting. Here Mr. Stockbridge writes the drama of the timid, unsociable youth who set his face toward a goal and learned how to fight to win it. â€”The Editor.
Music While Walking With Radio
A BERLIN engineer has invented a new radio hat set which may be worn without inconvenience to the wearer. With this set, shown at the right, one may listen to the Sunday sermon while motoring or playing golf, get the stock market returns at the ball game, or get the benefit of the daily dozen while on the way to work by merely tuning in.
Motorcycle Radio Transmitters Aid Police in War on Crime
DURING running gun battles with bandits, British motorcycle police can send radio calls for reserves through short wave transmitting sets.
The sending outfit is the latest police radio equipment for the quick suppression of crime. It is an addition to the usual receiving set tuned to the frequency of a central police transmitting station.
Aiming Radio Signals at the Moon
RADIO signals from the moon can be heard, asserts Dr. A. Hoyt Taylor of the Naval Research Laboratory at Washington, D. C. The plan is to direct a short wave radio beam at the moon in such a manner that it will be reflected by the moon’s surface to produce an “echo” wave, audible through powerful receivers on earth some three seconds after the 500,000-mile trip through inter-stellar space.