FOOLING the SPY in the SKY
NATURE camouflages fish by making their bodies in a two-toned pattern, light on the bottom to blend with illumination from the surface and dark on top to merge into the dusk of the depths. She protects birds in a similar manner. She mottles the coats of deer so they are almost invisible in a forest. She makes insects look like twigs and gives butterflies the form and coloration of leaves and flowers. Read the rest of this entry »
Sugar Moon Dial Tricks Observers
A SAN FRANCISCO confectioner played a neat trick on his customers with a moon dial displayed in his window. But one night when the moon failed to shine the clock, made, by the way, entirely from sugar, kept on telling time just the same. Later it was discovered that the confectioner had arranged lights in the interior in such a manner that the joke went undetected.
down to the last component SONY CB-901 spells quality
SONY
RESEARCH MAKES THE DIFFERENCEUnlike ordinary Citizens Band transceivers, there are certain distinct advantages in owning the SONY CB-901 fully transistorized unit. One of the most important is the separate speaker and microphone, rather than the combined speaker-microphone found in other sets. This means greater ease in operating and superior clarity in transmission and reception. Read the rest of this entry »
Compass Needle is Unreliable
“TRUE as the needle to the pole”
says an old song, meaning that the sailor could depend on the compass pointing out true north. But when Christopher Columbus made his famous first voyage, he found out that the compass does not point in the same direction, in various parts of the world. It then pointed north in Europe, but not in America. And now it points north in America, but not in Europe. Furthermore, there are local variations, due to unknown causes.
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Money Making Toys For Christmas
By JOSEPH H. KRAUS
How to Make Money from These Plans OF four items illustrated here, only the “Human Roulette Wheel” requires much work. Three are well fitted for profitable sales, the roulette wheel and the illusion box most so. The track circuit for toy trains is an ideal window display. Sell your services to local toy stores, offering to arrange for them an automatic display which is mysterious and attracts attention. The light twinkler makes an excellent display, but is best for home use. Read the rest of this entry »
Guide track speeds buses in city traffic
By DAVID SCOTT
Track-guided city buses combining the advantages of road and rail transport could help lick urban traffic problems. That’s the idea of Mercedes-Benz in Germany. The company has devised a remarkably simple automatic steering system for this dual-mode operation. Track guidance could segregate buses from other vehicles at traffic bottleneck points, where they’d speed along unhindered on special roadways at ground level, or over or under streets.
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NOW SEE THIS!
MC-5 is new McCulloch engine for karts. It has displacement of 4.9 cu. in., will turn more them 12,000 rpm. Stroke: 1.375 in.; bore: 2.125 in.: compression ratio: 6.5. It weighs ten lbs. and meets the requirements of Stock A racing. Aircraft-type carburetor is featured. The MC-5 retails for $99.50.
PEOPLE CHAIRS were designed for Alcoa’s Forecast Collection, are not commercially available. They’re aluminum outdoor furniture imaginatively fashioned to resemble the occupant. They are folded from single sheets of aluminum, coated with porcelain.
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The OLDEST FORM of BIRTH CONTROL
Withdrawal before ejaculation is used more widely and probably with less harm than has been supposed. Helen Kitchen Branson, M.A.
One of the oldest (possibly the original) methods of birth control is withdrawal. Simply stated, it is withdrawal of the penis from the vagina a few moments before the male sexual act is completed by the discharge of the seminal fluid.
Historically and professionally known as coitus interruptus, the Latin name for it, withdrawal was practiced in Biblical times. The simplest English words for the method are: interrupted sexual intercourse, or as it is popularly called, withdrawal. Read the rest of this entry »
Honey in Water Is a New Efficient Anti-freeze Solution
A STRAY honeybee in your motor car may provoke an accident but strained honey in your radiator as an efficient antifreeze agency when winter comes, engenders driving satisfaction. Science has determined that honey not only is a preventive of freezing but it also has ascertained that this sweet possesses the antipodal ability to restrict boiling. Read the rest of this entry »
Robbie and Gronk Mobile Robots
By Keith Paul
What good is it, or what can it do? These were the most frequently asked questions while ‘Robbie’ the robot was on display at Bell Canada’s recent ‘open house’ held to celebrate the opening of their new 24-story Regional Headquarters building in Toronto. ‘Robbit,’ a tall conical shaped robot (Photo 1), and ‘Gronk,’ the shorter cylindrical machine (Photo 2), are the two robots which John Hughes and myself built over the past year.
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Collapsible “Home” Carried On Roof Of Automobile
FEATURING six windows fitted with slid-glass and permanent screens, a newly developed prefabricated collapsible house which can be carried on the roof of an ordinary passenger auto enables sportsmen, fishermen and others who like the outdoors to enjoy short or prolonged trips in perfect comfort. Read the rest of this entry »
What the Sputniks Said
Russian scientists disclose how radio waves travel from their satellites to earth
By A. J. Steiger
Radio LISTENERS who tracked the earth-circling travels of Sputnik I have reported new discoveries in short-wave propagation, including a round-the-world echo, according to preliminary findings published in a recent issue of Radio, a Russian popular electronics journal.
What the Sputniks discovered about prospects for using solar power to operate space vehicle instruments is also discussed in the Moscow journal. These reports on Russia’s pioneer space vehicles’ discoveries, the first to be published, are translated here.
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