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Building a BARREL STAVE Bob
IT IS not necessary to have a steel runnered sled to attain great coasting speed on a snowy hill. A bobsled can be built of an ordinary 2×12 inch plank and barrel staves which will pass anything on any hill, especially in deep snow. Besides the material just mentioned all that will be needed are a few pieces of 2×4 and a couple of carriage bolts.
BACK TO THE MUD HOUSE
By H. G. HUNTING
IE word concrete has a sound that would be expected to warn away rather than to attract the housekeeper and home-maker. Its associations are all of the sort that have had little or no interest for women—or for men, either, who are not employed directly in the heavy business of construction and to whom the lore of engineering is a mystery.
WEIGHTED LADS are British soccer players strengthening neck and back muscles, testing Russian, Continental teams’ technique.
CHROME-PLATED fireplug cost La Jolla, Calif., Dr. Edward Courtney $222.50 to pretty up.
LIGHTNING-STRUCK Civil War gun delights kids in Springfield Armory Museum, Mass.
PENNY FARTHING bike fitted with motor is part of 85-year-old Rowland Winn’s museum of ancient cars and bikes, Leeds, England.
THOUSAND-LB. stuffed bear at Yale’s Peabody Museum was gift of toymaker A. C. Gilbert.
Cargo Canoe can be detached from the bottom of the fuselage in less than two minutes and towed to the terminal by tractor. Used on Eastern Air Lines’ 60-passenger Constellations, it accommodates 8,000 pounds of baggage and greatly facilitates handling. This photo shows “skycaps” removing bags from the detachable compartment at Newark, N. J., airport after the “Connie’s” four-hour, non-stop flight from Miami, Florida.
Cyclographic Camera Photographs Speedy Mechanical Motion
By G. H. DACY
THE most remarkable development in modern photography is centered in the cyclographic camera recently devised and perfected by Dr. T.E. Eckhardt and his assistants at the Washington laboratories of the National Bureau of Standards. This special camera is a masterpiece of photographic skill, as it takes pictures of things on the fly, traveling at such excessive velocities that no other camera under the sun is qualified to get a picture of their flight.
BULLET BOUNCER ON CAR SAVES POLICE FROM THUGS
Bullet bouncers are now in use on cars of the San Francisco, Calif., police department to protect members of radio patrol crews from the gunfire of thugs. The contrivances are sheets of quarter-inch-thick steel plate, equipped with shuttered windows and hinged to the top of the windshield frame.
Acid Etching Now Used in Novel Way to Make Dainty Glassware
Glittering modernistic patterns in pressed glassware, in the form of goblets and vases, are now on the market. The photographs on this page, taken recently in the workshop of a Paris glass-maker, show how such pieces are made.
Sand, the raw material of glass, is melted at a temperature of 1,100 degrees centigrade. In this molten state, it is dropped into a mold that has been carefully designed by artists. A press descends and then rises immediately. The shaped piece is removed from the mold and baked. After it has cooled it is examined for imperfections and if flawless, it is polished on a rotary wheel. Parts that are to remain transparent are coated with Judean tar. Acid makes exposed parts opaque.