I’m not sure what happened with this, but people are now making transistors where paper is actually a functional part of the device.

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Now They’re Printing TRANSISTORS ON PAPER!

Flexible circuits printed by machine on paper, aluminum foil, or film may make possible cheap, disposable radios, hi-fi’s, and many other electronic devices.

By W. STEVENSON BACON

Someday soon you may be able to buy a pad of operating electronic circuits just the way you now buy a pad of paper. On its pages will be printed amplifiers, radio receivers, computer circuitry, oscillators—anything you can name. They’ll be so inexpensive you’ll be able to tear them out, use them, and junk them. Read the rest of this entry »

NEW TELEPHONIC DEVICE KEEPS HANDS FREE

MR. GEORGE TANKARD is shown below with his new invention that is designed with an eye to speeding up the efficiency of a busy man. This invention is balanced on the shoulder by the form fitting holder. The receiver is placed in the holder and then adjusted to the shoulder so that the ear gets the best results. It is interesting to note that this device has been produced in London, where the American type of speed efficiency has been taking a very strong hold in the last few years.

Six-Story Speed highways of Tomorrow

Here is an artist’s conception of the amazing multiple highway plan of Dr. John A. Harriss, former health commissioner of New York City. The plan calls for six traffic levels. Each level is for designated traffic. There is an express traffic level, two one-way levels for bus traffic and other plans to expedite traffic. This proposal of Dr. Harriss is gaining in favor as one of the most feasible of many schemes advanced to adequately handle the constantly increasing motor and pedestrian traffic.

New-Style Bike Frame Gives Floating Ride

Floating on a separately sprung unit containing the seat and pedal sprocket, the rider of a new-type bicycle negotiates bumps in the road with maximum comfort, according to the claims of the manufacturer. Pivoted to the main frame at the rear hub, the floating assembly absorbs shocks, giving an even, jarless ride. Seat and pedals are the same distance apart at all times. Further cushioning is provided at the handlebar, which is mounted in rubber to permit free flexing.

Courtesy

We want your telephone service to be good and quick and cheap. But there’s more to it than that. We want it to be courteous too.

No matter what the occasion, there’s always time for a cheery “please” and a pleasant word of thanks. That is the Bell System way. It is one of the fine traditions of the telephone business.

BELL TELEPHONE SYSTEM

PREPAREDNESS—THE BELL SYSTEM IS PREPARED TO DO ITS PART IN THE NATION’S PROGRAM OF NATIONAL DEFENSE

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The Microwaves Are Coming!

Invisible network will handle phone rails, telegrams, television, FM and AIM broadcasts, complete newspapers—even carry your mail.

By Martin Mann
PSM photos by Robert F. Smith

COMMUNICATIONS are being revolutionized faster than you think. The humming wires beside the highways already are rivaled by new systems, capable of transmitting more spoken or written words and more still or moving pictures from coast to coast. The difference between these new systems and those of the past is as great as that between oxcarts and stratoliners. Read the rest of this entry »

French Car has Front Door

IN designing a car to give the minimum of resistance to the air—”to shed air as a duck sheds water”—M. Andre Dubonnet, a French automotive engineer, departed from usual practice and took advantage of the location of the engine at the rear to have a swing-up door in front, as shown by the illustrations at the left. The curve of the door followed the blunt nose shape, which is the true line of least resistance in streamlining.

‘Vacuum-Rocket’ Car Sets Style for Dirigible
Looking as though it might be as much at home in the air as on the ground, a motor truck propelled by air sucked through a wind tunnel is testing principles that may revolutionize the building of dirigibles. Air is drawn into its concave, funnel-shaped front by a small propeller and is forced out at the rear with tremendous velocity, sending the car rocketing across the earth. Read the rest of this entry »

So milk cures P.T.S.D? Someone should tell the Defense Department!

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Milk Cured My Nerve Shock

The Story of the Physical Regeneration of W. J. McLemore

An Interview and Introduction by Edwin F, Bowers, M. D
ILLUSTRATION BY LEONARD WHITNEY

ONE of the most deplorable, disheartening and distressing results of the War is our crop of cripples. The cruelly maimed, the pathetic blind, the derelicts who have lost legs or arms in the bestial, bitter game, are figures of sorrow. They affect every decent-minded man or woman with an overshadowing sense of resentment and protest at the futility of it all.
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The Cycle-Glider

NEW possibilities in the line of aerial sport are indicated by the “Unicycle” (single-wheel) glider illustrated above, and intended to be driven by the operator, either on the ground or in the air, through pedals and gears. The sketches on this page, adapted from the patent drawings, show the method of applying the power suggested by the inventor; but other designs may readily occur to the mechanically-minded reader. Read the rest of this entry »

Traffic Lights on Auto Signal Right or Left Turning

Will miniature traffic lights for each car banish hand signals, and make driving safer in crowded city streets? Police officials of Oxford, England, recently saw such a system demonstrated by Sir William Morris, motor car maker. Installed in pairs one on each side of a car, and operated from a dashboard switch, the new lights use stop and go signals familiar to every motorist to warn of turns and other maneuvers. Read the rest of this entry »

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Fun with Shadows for Home Entertainers

Profiles of birds and beasts can be made with hands, a light and a screen. This feature explains how anyone can cast the shadows of sixteen different figures, an accomplishment which will provide many full evenings of entertainment for either children or adults.

Ordinary sheet provides the screen for shadow entertainment. Strong electric bulb can be provided with home-made reflector and a cardboard shield — all the equipment needed for highly entertaining home program based on complete details in this article. Read the rest of this entry »