Tests Graded By Weight (Oct, 1935)
This is pretty neat though it seems that you could just punch more than one hole for a question and get the answer right…
Scale Corrects Examination Papers
WHEN a Kentucky professor discovered that nearly 75 per cent of all students’
examination papers were incorrectly marked, he invented a robot examination corrector which automatically corrects 75,000 questions an hour without an error.
Prof. Noel B. Cuff of Eastern Kentucky State Teachers College is the inventor of the robot, called the testometer. The meter is used in true and false or in the multiple choice examinations in which the student is given a perforated card, the holes to be punched bearing the number of the question asked.
The perforated card is then placed on the testometer, and wherever the correct answer has been punched, a 1/4-ounce weight drops through the hole onto the scale. The total weight registered is the student’s mark.
Boy Genius Builds Complete Electrical Laboratory (Nov, 1935)
I love this: “…products of his versatile mind and stubby fingers.”
Boy Genius Builds Complete Electrical Laboratory
by ORMAL I. SPRUNGMAN
From odds and ends of discarded equipment 13-year-old Franklin Lee has built a remarkably complete scientific laboratory. A few of his many successful electrical projects are described in this article.
NIMBLE fingers, an inventive mind, and. the urge to experiment have brought to 13-year-old Franklin Lee, Granite Falls, Minn., electronic wizard, a scientific research laboratory that would do credit to a college student of science.
In the well-lighted interior of his garage workshop powerful homemade electric motors turn lathes and grindstones. Standing by in one corner, ready for instant use, is an electromagnet capable of lifting a hundred pounds. Transformers of different sizes and voltages hum merrily in their baths of cooling oil, while in one corner metal glows white-hot in a homemade electric arc furnace. From discarded electrical equipment, auto parts, and odds and ends of cast-away materials Franklin built them all.
Ad: An intrstng exprmnt in spch (Apr, 1956)
Yes, at Bell Labs we’ve been disemvoweling you since 1956!
An intrstng exprmnt
Some day your voice may travel by a sort of electronic “shorthand” when you telephone. Bell Laboratories scientists are experimenting with a technique in which a sample is snipped off a speech sound â€”just enough to identify itâ€”and sent by wire to a receiver which rebuilds the original sound. Thus voices can be sent by means of fewer signals. More voices may economically share the wires.
This is but one of many transmission techniques that Laboratories scientists are exploring in their search for ways to make Bell System wire and radio channels serve you more efficiently. It is another example of the Bell Telephone Laboratories research that keeps your telephone the most advanced on earth. The oscilloscope traces at right show how the shorthand technique works.
BELL TELEPHONE LABORATORIES
World center of communications research Largest industrial laboratory in the United States