Home Recording Disc

Marriage of Aluminum and Acetate

THE BLANK recording disc is to phonograph records what unexposed film is to photographs. Any record groove ever played with a pickup was originally cut on a recording disc. This is as true today, in the age of high-fidelity tape masters and LP records, as it was in the days of Caruso and acoustical recording.
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Vacuum Cups Keep Score for Fencers
Vacuum cups of rubber fixed lightly to the ends of foils are a feature of a novel fencing outfit just introduced. The tiny cups come loose and stick to an opponent’s protective shield at the point where they touch it. The tips not only insure safety for the fencers, but facilitate scoring by adhering to areas appropriately marked on the shields. Scoring is based on the location of the touch, a thrust at the heart counting most.

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Radar on the Highway

A POP’tronics Exclusive Report on Radar Speed Meters

ONE DAY SOON you may be speeding along a lightly traveled highway and find that electronics has indeed arrived. In fact, it has arrived to the tune of a wailing siren and a big, flashing red light— you have been caught by a radar speed meter. Much to your chagrin, the poor motorist with the flat tire, parked at the side of the road, was really a highway patrol car. A radar broadcast reached out and measured your speed. Simultaneously, a printed record was made that is accepted as irrefutable evidence in 99% of the traffic courts throughout the United States.
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Before penicillin this was probably true.

INFECTION MAYBE FATAL

PROTECT EVERY CUT

Neglect may lead to amputation—even death. Treat cuts, scratches or blisters with antiseptic and cover with Drybak Band-Aid, quickly, easily and safely. Drybak Band-Aid is the only ready-to-use adhesive bandage with these features:— waterproof backing, sun tan color, individually wrapped. At your druggist’s.

DRYBAK BAND-AID
Waterproof

If they have a battery that powers the radio for eight months why would the solar cells be necessary?

Sun-Powered Receiver
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.

That looks safe.

Rumble Seat on Handle Bar for Cyclist’s Baby

When one proud father in Switzerland wants to take the baby for an airing, he fits a special rumble seat on the handle bar of his bicycle and away they go. The seat is equipped with a top to protect baby from sun or shower, but the top can be folded when desired.

Floating Air Base Has Repair Basin
A giant, mobile seaplane base recently proposed provides a protected basin 150 feet long and eighty feet wide as a landing harbor for transoceanic planes. As shown in a model just completed, the floating base has a commodious terminal at its forward end, while a water gate at the open end of the basin would permit the latter to be emptied for use as a repair drydock.

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Glass Making Easy for Home Chemist

By Raymond B. Wailes

BECAUSE of its importance in glass making and other industries, silicon opens a particularly interesting experimental field to the home chemist. In nature, silicon is almost as plentiful as oxygen. Yet, it hides itself well in its compounds. It never is found free and uncom-bined and can be separated from its associates only through clever chemical thievery in the laboratory.

Industrially, silicon is obtained by heating sand—a compound of silicon and oxygen—and coke to a high temperature in an electric furnace. The white-hot coke steals the oxygen from the sand to form carbon monoxide and frees the silicon. Although the amateur chemist will have no electric furnace in which to duplicate this process, he can obtain a similar result by heating sand and powdered magnesium over his ordinary laboratory gas burner.
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Talk about times changing. The headline looks like it’s about the perils of gay marriage but it’s actually about the horrifying thing single and working parents today call daycare.

He has two mothers … but still he’s lonesome

Johnny Rogers has two mothers. He sees his real mother for only a few moments each evening — because she has to work all day.

His substitute mother is organized charity, which does the best it can for him during the day.

If Johnny’s father were alive, things would, of course, be different. But unfortunately he put off taking out life insurance; that is why Johnny’s mother cannot give the child her full time now.

You may think this just couldn’t happen to your child. Why not get the suggestions of an Equitable agent and make sure it won’t?

The Equitable agent is trained to recommend a plan to fit your requirements exactly. This is what is meant by The Equitable Case Method. The special conditions of your case are considered—the ages of your children, your income, whether or not you own your own home, and other vital factors.

THE EQUITABLE LIFE ASSURANCE SOCIETY OF THE U.S.

Looks easier than a balloon and a box of whippets.

DENTAL PATIENT CAN GIVE HERSELF GAS
Dental patients can now administer their own anesthesia. The gas, the same as that now used by dentists, is a mixture of nitrous oxide and oxygen. A tube leading to the tanks containing the gases is equipped with a pistol-like control. While wearing a mask, a patient with this control can release as much gas as she needs to overcome the pain. The patient does not lose consciousness but suffers no pain.

New TV System Turns Night into Day

TELEVISED by the glow of a single cigarette, the picture above demonstrates the light sensitivity of a closed-circuit television that is said to amplify light up to 40,000 times.

The new video system, known as the Lumicon, may vastly expand the vision of doctors, astronomers, industrial inspectors, and researchers in many other fields. Complete camera and monitor outfits are scheduled for production by the Friez Instrument Division, Bendix Aviation Corp.
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Revolving Upper Wing Makes Airplane an Autogiro

CALLED a vertaplane, a new airplane which successfully completed its first public flight recently combines many of the features of autogiros and conventional aircraft. The upper wing of the novel ship remains stationary in normal flight, but whirls like an autogiro blade to permit take-offs and landings at slow speeds and in confined areas.