Bringing Primeval Monsters to Life for Chicago Fair (Jun, 1933)

Behold! The most dreadful of Primeval Monsters, the Holstein Cow!

Bringing Primeval Monsters to Life for Chicago Fair

A remarkably life-like model of the saber tooth tiger, which ranged the primeval forests, is here seen nearing completion for display at the Chicago Century of Progress Fair, opening on the first of June.

Helium Plasma Speakers (Jun, 1979)

Coneless speaker uses plasma driver

“Jack’s Welding? My loudspeakers are low. Fill ’em up with helium, please.”

Strange phone call? It’ll be routine for affluent audiophiles using a new speaker system, the Hill Type 1. Type 1 cabinets contain a helium bottle good for about 300 hours of playing time. Minute amounts of helium bleed into a glowing plasma, or highly ionized gas—heart of the speaker from Plasmatronics Inc. (2460 Alamo, S.E., Albuquerque, N.M. 87106).

WORKSHOP WIZARD on the Stage (Oct, 1948)


By William J. Duchaine

RUSSELL E. OAKES of Waukesha,

Wis., has been “making things” ever since he was big enough to wield a jackknife. Away back when makers of electric drills offered lathe attachments, Oakes had the yen for power tools. So he started equipping his shop, suffering occasional pangs of guilt over such an “extravagance,” and never dreaming he was laying the foundation for one of the most unusual careers in the U. S.

Pads Reduce Phone Pressure. (Jun, 1949)

These actually look a lot like modern headphones.

Pads Reduce Phone Pressure.

This new lightweight headset manufactured by Telex, Inc., Minneapolis, reduces ear fatigue by eliminating pressure on them. The two receivers rest on the sides of the head and sound is piped through plastic earpieces, which are individually adjustable. The set includes a volume control.

Theremin Cellos Win Music Public in “Electric Concert” (Jun, 1932)

Theremin Cellos Win Music Public in “Electric Concert”

THE electric cello, developed recently by Leon Theremin, has now been accepted by the music public as an instrument of high artistic merit.

At a symphony concert of electric music given a short while ago at Carnegie Hall, New York City, the electric cello made a sensational debut in a program consisting of selections from the old music masters— Bach, Haydn, Debussy, and others.
Producing exquisite tones, with both extremes of volume, the electric cellos have as their innards vacuum tubes whose oscillations are controlled by levers and coils on the instrument.

TWILIGHT CITY — Where Snapshots are Born (Feb, 1936)

Very interesting article about how film and photographic paper is made:

“The story behind the actual film-making begins in a huge vault where five tons of bar silver —a week’s supply of the precious metal— may be stored for almost immediate consumption.”

That’s a lot of silver, and this was only 1936!

TWILIGHT CITY — Where Snapshots are Born

“It’s easy to take a snapshot,” as 500,000,000 pictures a year will testify. But behind the click of the lens there lies a story of high speed chemistry fascinating in its scope.

The early amateur photographer carried a bulky apparatus in a portable, tent-shaped darkroom into which he plunged for a freshly-sensitized glass plate every time he wished to take a picture. Today’s amateur, exposing some 500,000,000 snapshots yearly, has at his command a vast array of lightning-speed emulsions in convenient sizes and shapes, which are ready for instant use.

Giant Incandescent Light Bulb (50KW) (Nov, 1931)

Ah, racier days. The caption doesn’t say she’s “holding it”, no, she’s “fondling it”.

Think of the Light Bill!

EVEN at reduced rates for household electricity, Mr. U. Consumer would think a long time before putting one of these new German incandescent lights in the parlor; it consumes 50 kilowatts of current, or 67 horsepower. The multiple filaments are shown clearly, at the right.

This young lady is fondling, not a balloon, but the largest incandescent lamp bulb in the world, over 100,000 candlepower. As they used to say on the Fourth of July—”Do not hold in the
hand after lighting!” (Osram Lamp Works)

Orphans Win Toy for Heroism (Sep, 1933)

Wow, that’s some generosity. Six orphans prevent a train from crashing and save 500 lives. So the railroad rewards them with 3 model trains.

Orphans Win Toy for Heroism

STUMBLING, struggling for breath through a terrific thunderstorm nearPassiac,N. J., six orphan boys, waving, screaming desperately stopped an Erie train fifty feet from a washout and saved the lives of 500 passengers. The story of their heroism made front page news throughout the nation, arid as a reward the boys won a railroad of their own. The road has three miniature trains like the one shown in the photo above, and is complete with tracks, switches, signals, miniature stations and other buildings to go along their railroad’s right of way.

Mouth Harpist Goes to Extremes (Jun, 1932)

Mouth Harpist Goes to Extremes

JUST because he “slides over” a lot of notes going from low “G” to high “C” gives Fred Leslie, London musician, the right to claim the title of world’s champion mouth harpist. His mammoth instrument measures 36 inches from tip to tip. He also plays the one-inch organ shown perched on “Big Bertha” in the photo below.

Why You Can’t Ring Bell of “High Striker” (Feb, 1935)

Why You Can’t Ring Bell of “High Striker”

Ringing the bell of the “high striker” at the county fair appears to be easy when the operator, frequently a small man, tries it. On the other hand strong men find it difficult. The explanation is simple. At some fairs, the machine is “fixed” so that the operator controls the tension of the wire on which the counter block rides. If the wire is tight, the counter block slides freely to the top of the machine, but if the wire is slightly slack, it vibrates sufficiently to retard the progress of the block. The vibration is set up by the player’s mallet striking the trip arm. A trick lever, sometimes hidden under a loose board in the platform at the side of the machine, may be depressed by the operator by standing on the loose board. By depressing this lever, the showman forces a steel pin against the bottom bracket holding the guide wire. This causes the bracket to bend slightly and reduces some of the tension of the wire. Thus, the operator may control the play permitting the bell to be rung or preventing a strong man from ringing it.