Bicycle Gearshift Makes Hill Climbing Easy for Cyclists
CYCLISTS no longer have to jump off and push their wheels up the steeper hills, now that a bicycle gearshift is available.
The high gear is used for normal riding; the rider has but to shift to low gear, and ride up the steepest of grades in comfort. The coaster brake functions as usual with both gears.
In one type the gear selection is controlled by a lever on the frame; in the other the shifting is done by a foot-controlled lever on the pedal crank.
One-wheel Trailer Folds Up on Car
THE latest in trailers, a one-wheel affair that folds up against the spare tire when not in use, is finding great popularity among English motorists.
A single caster wheel automatically reverses or turns with the car. The luggage rack trailer is hinged to rear bumper at two points.
Eyes Magnify Objects 100 Times
ALVA MASON of Minot, Maine, has eyes which magnify everything within his range of vision one hundred times, making pores appear as deep holes in the skin. He wears demagnifying glasses when at work, since his range of acute vision is limited.
Luncheon Trays for Motorists
A TRAY which tits inside any closed car permits motorists patronizing curb service stands to enjoy food and drink as if they were sitting at a table. The tray can be instantly leveled by turning a thumb screw. No crumbs need get on the upholstery.
New Crystal Radio Is Powerful
THE latest in crystal sets, housed in a beautiful black Bakelite case, has even an illuminated tuning dial. It is claimed that the quality and volume of reception far exceeds that of any ether crystal receiver. No batteries are neededâ€”only aerial, ground, and headphones.
Old And New Communication Methods Combined
Old and new methods of communication were combined recently when a Cincinnati radio station used carrier pigeons to speed pictures of a baseball game between Cincinnati Rends and Pittsburgh Pirates to its studio for immediate transmission.
Vote for Pedro!
THE FIRST MACHINE THAT REALLY TALKS
Voice-Operation Demonstrator Crowns Centuries of Effort by Scientists to Duplicate Human Speech Artificially
HE HASN’T any mouth, lungs, or larynx-but he talks a blue streak. His name is Pedro the Voder, and you may see him in action at the New York and San Francisco world’s fairs. His creation from vacuum tubes and electrical circuits, by Bell Telephone Laboratories engineers, crowns centuries of effort to duplicate the human voice.
To manufacture Pedro’s conversation, his operator employs a keyboard like that of an old-fashioned parlor organ. Thirteen black and white keys, fingered one or more at a time, produce all the vowels and consonants of speech. Another key regulates the loudness of the synthetic voice, which comes from a loudspeaker. A foot pedal varies the inflection meanwhile; so that the same sentence may state a fact or ask a question.
After years of research and development, scientists believe they have finally created a new type of street sign. Yes, it is truly a miracle of modern signage; a shining example of American know how and inventiveness.
“Yield” Sign Reduces Accidents
Warning motorists to give the right of way to cars on the intersecting road, a new “Yield” sign is already reducing accidents in Tulsa, Ok la., where it was developed. Designed for use in areas where traffic generally is not heavy enough to warrant full-stop requirements, the sign definitely places responsibility without requiring a complete stop. Motorists approaching the sign must slow down to at least 10 miles an hour and yield the right of way to any car approaching along the intersecting roadway. Any driver becoming involved in a collision at an intersection after passing a yield sign is automatically deemed to have violated the law.
The title of this article should be: “How Mr. Pavlov got his wife to buckle up: a lesson for the auto-industry.”
How I Got My Wife to Use a Seat Belt
FOR 10 years I have used safety belts in my car. But each time we went for a ride I have had to tell my wife to fasten her belt. She is a most stubborn person and uses all kinds of excuses for not doing so.
I have finally won. These drawings show how. The system tells her to put the belt on. It works like magic every time. It saves arguments. The little reminder consists of a light, the words “Safety Belt,” a buzzer, and two cunningly wired snap switches.
When my wife gets into the front seat beside me, her weight trips a normally open snap switch under the seat. Two things happen: First a doorbell buzzer begins sounding behind the dash, attracting my wife’s attention toward it. Second, in the opening where a clock usually is mounted, the words “Safety Belt” are illuminated by a lamp behind the dash.
The second snap switch, normally closed, is mounted under one strap of the belt so that it is opened by the pressure of pulling the belt across the waist. This breaks the circuit, stopping the buzzer and turning off the lamp. As long as my wife sits in the seat, she’d better have the belt on correctly or the buzzer will let her know. [Editor's note: An optional cut-out switch is shown in the drawing for those who might like one.]
Now, when we start out, she races me to fasten the belt before I can use the ignition key and turn on the circuit. Seems she doesn’t like to hear the buzz. The only way to stop the buzz is to get out of the seat or turn off the ignitionâ€” or put on the belt. If she wants to go for a ride that leaves her little choice.
â€” Wes Jayne, Woodhaven, N.Y.
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9 Uses for Plastic Bottles
- Windshield Washer
- Quick starts in cold weather
- For dusting models (use empty bottle)
- Liquid soap dispenser
- Paint sprayer
- Oil sprayer
- Polish applicator
- Breakproof travel bottles
The pianist above is playing a tune as it is composed by the electronic brain he gazes at wistfully. The complicated Burroughs machine can turn out 1,000 tunes an hour â€“ all mathematically calculated to be popular. It picks off a series of coded numbers, matches them with melodic formulas, rejects sour notes.
This is the earliest reference I’ve seen to a CCD in a consumer product.
Amazing New Picturephone
A step closer to in-person
By W. Stevenson Bacon
Thereâ€™s a brand-new Picturephone in the works that will one day give you instant total communication with anyone you call. What makes it fascinating is the amazing versatility of the delicately engineered unit that holds both picture and camera tubes.
Unlike the old Picturephone, this one gives you a choice of wide-angle picture, long-range shot, or electronic close-up. Pull a lens out and aim it downward, and you can send pictures, drawings, or printed documents. If you wish, you can push a button to see what youâ€™re sending. And if a call catches you in the shower you can simply switch over to three-bar test pattern.
Bell Telephone Laboratories packed all this into an 8-by-11-by-14-inch box by using tiny integrated circuits that incorporate hundreds of transistors and other components on small chips of silicon. In fact, the only vacuum tubes used are the picture and camera tubes. And even the camera tube makes use of semiconductors.
The camera tube is a revolutionary new type that uses a target (the part of the tube that converts incoming light to electrical charges) made of silicon and containing 300,000 light-sensitive diodes formed on it by integrated circuit techniques. Itâ€™s the first time that semiconductors and vacuum tubes have been combined to make one device.
Wanted: 500,000 Men to Feed Computers
You don’t have to be a college man to get a good job in computer programming – today even high-school grads are stepping into excellent jobs with big futures
By Stanley L. Englebardt
IF YOU know how to “talk to computers,” chances are you’ve got it made. If you don’t, you may be missing out on a great job opportunity.
People who talk to computers are called programmers. They instruct data-processing machines on how to perform specific jobs. Today there are about 40,000 of these specialists at work. In six years, experts say, 500,000 more will be needed. Many will require a bachelor’s, master’s, or even doctor’s degree. But close to 50 percent will move into this new profession with only high-school diplomas.
Here’s why there’s such a tremendous demand for programmers.