Japanese Drive Dummy Tanks
Fledgling tank drivers in Japan’s security police force learn the ropes in the weird contraption above. Instruments, brake levers and periscope are copies of those in a U. S. Army M-24 tank.
Growing Blanket of Carbon Dioxide Raises Earth’s Temperature
Earth’s ground temperature is rising 1-1/2 degrees a century as a result of carbon dioxide discharged from the burning of about 2,000,000,000 tons of coal and oil yearly. According to Dr. Gilbert N. Plass of the Johns Hopkins University, this discharge augments a blanket of gas around the world which is raising the temperature in the same manner glass heats a greenhouse. By 2080, he predicts the air’s carbon-dioxide content will double, resulting in an average temperature rise of at least four percent. If most of man’s industrial growth were over a period of several thousand years, instead of being crowded within the last century, oceans would have absorbed most of the excess carbon dioxide. But because of the slow circulation of the seas, they have had little effect in reducing the amount of the gas as man’s smoke-making abilities have multiplied over the past hundred years.
IT’S GREAT TO BE REGULAR
ALL-Vegetable Makes the Difference
Thousands of modern men and women in all parts of America have turned to Nature’s Remedy, NR Tablets for dependable, yet gentle relief, when a laxative is needed. They know that the all-vegetable idea is so right. They find an NR at night produces thorough morning regularity with no perturbing effects. It’s so kind to the svstem.
Try NR at our expense. 25 tablets only 25c. Buy a box at any drug store. Try them. If not completely satisfied, return box with unused tablets to us. We will refund your money plus postage.
PARLOR MAGIC with CIGARETTES
IF THE cigarettes themselves could only express the keen competition apparent among their manufacturers . . .well!
Try this: Drop a bunch of one brand smokes into a hat. Take a lone cigarette of another brand and skoot it into the enemy encampment. Bang! Out comes the intruder with much gusto to be deftly caught in your hand. The “how” is absurdly simple. The “bunch” is dropped into the hat, taking care that they land in the far compartment of the crown. The lone cigarette goes into the near compartment. What’s left is merely a matter of voicing a loud “bang” at the same moment you snap the crown of the hat with your thumb, projecting the cigarette high into the air. For so simple a bit of foolery, this goes over nicely.
How to Tie a Cigarette in a Knot
Interesting article on the history and development of the lowly tin can. Also, if you have not yet been introduced to the techie crack that is the National Association of Manufacturers Blog, by all means, check it out. Every Saturday they post a video tour of a different factory or manufacturing process. One of my dreams has always been to make a Factory Tour tv show (without John Ratzenberger and all the promotional sound bites). Anyway, they have an excellent video showing the entire manufacturing process for tin cans here and it is very, very cool.
ROMANCE Of The TIN CAN
CUT all the tin plate used annually to make the tin cans of America into a strip one foot wide and you can wind that strip around the earth fourteen times.
Or, to visualize it another way, take the five billion odd square feet of tin plate into which we put our fruits, vegetables, meat, fish, beer, paint, oil. candy, cheese and tobacco each year and it would be a simple matter to can the moon. You’d have the biggest cheese can ever made, and still have a lot of tin plate left over.
The vastness of tin can production has brought this familiar article into the lives of nearly every American family, for it is in this country that the greatest volume of tin cans is produced. A good year will find between eight and nine billion cans for the food racks of this country and this is the business that accounts for the major percentage of cans.
I’m going to be redesigning this site soon and I wanted to ask for suggestions. What do you find annoying? What would you like changed? Added? The biggest complaint thus far seems to be that the white on grey text is hard to read.
Also, are there particular kinds of scans you’d like more of? Other topics?.
I’m not sure if they still do this at the new Hayden, or if they do elsewhere, but it’s really cool. Basically using a set of mirrors they project an image of the sun onto the roof of the planetarium, so you get 26 foot wide image that’s safe to stare at.
Bringing the Sun Indoors
AT the Hayden Planetarium in New York a huge 26-foot image of the sun is being projected on the interior of the dome every day that the sun shines. This is accomplished by means of a first system of moving and fixed flat mirrors for bringing the sun’s image indoors and a second system of mirrors and lenses for enlarging and projecting it.
The actual sun is shown at the top of the drawing. Its rays are caught by an eight-inch flat mirror mounted on an axis parallel with the earth’s axis. A clock-like mechanism slowly turns this mirror as the earth’s turning “moves” the sun. This image, after passing through an opening in the building, is kept constantly spotted on a second flat mirror which is permanently fixed in position. It in turn passes the image downward to the third element of the Jong optical train, a flat mirror fixed at a 45-degree angle which turns it horizontally. The sun’s image is now where it can be used but as yet it is neither magnified nor projected.
Magnification is done in an ordinary eight-inch reflecting telescope, just as it would be if that telescope were directed at the sun out of doors; and since it is possible with any telescope to view the image not alone by looking into the eyepiece but also by projecting it on a screen at some distance from the eyepiece, the same is done at the planetarium. Here the distance is long, hence the image is very largeâ€”larger, in fact, than any solar image previously projected by similar methods. All this apparatusâ€”the coelostat, fixed flats, and telescopeâ€”is entirely separate from the regular planetarium apparatus and could be similarly used with any ordinary house or building.
Look! It’s Flying Disks Again!
PARIS has its flying saucer, but it is called “The Magic Plate.” It is a two-pound aluminum disk that floats in air without apparent support.
It moves up and down. It rotates. It lifts an ornate chandelier with bulbs burning continuously as it spins. If such trickery doesn’t prove that the plate is magic, it will fry eggs to a golden brown with nothing between it and the table but air!
Actually, of course, it is no more “magical” than the magic of electricity and the phenomenon of induction.
Below the plate, concealed in the table, are two concentric coils. The inner coil sets up a magnetic field that repels the tray, forcing it into the air. To keep the tray from slipping sideways out of the lifting field, a large outer coil is used. This develops a conical field, tapering toward the top, to keep the plate centered.
A third field makes the disk rotate. Four coils create it. Once the tray starts spinning, it does so for a long period even after the rotation coils are turned off because the drag of friction is almost nonexistent.
The chandelier weighs one pound. Its bulbs are lighted by induced current. The aluminum tray gets hotter than an ordinary electric iron, providing ample heat for egg frying.
What’s it all for? It is strictly a stunt used in Parisian store windows to attract customers and impress them with the magic of electricity.
From the department of unintentional irony:
A GIFT OF PERFECTION
For the man who is dying for a cigarette, this 3-3/4″ x 1″ x 1-1/2″ completely metal, copper color coffin is a true replica of the real thing… Bewareâ€”your friends will fall in love with it. So-O-O buy several for gifts.
No others like it! Send $2.00 for each prepaid DROP DEAD COFFIN to
Andrea Specialties, Dept. S.M., 2700 Point Breeze Drive, Wilmington, Delaware 18903.