OUT IN California salt is being recovered from sea water in commercial quantities. The pictures below show details of the process. In this shallow pond sea water is evaporated and its salt content crystallized out. Note the ridges of salt along the edges of the pond.
UNCLE SAM was recently called upon to perform a rather odd duty as postman. The erstwhile Secretary of Commerce, Mr. Herbert Hoover, needed a specific piece of lumber as a sample for the meeting of the National Committee on Wood Utilization. The meeting was scheduled in Washington. The lumber was in St. Paul, Minnesota.
Edited by WALTER D. KERST AS AN associate member of the Society of Motion Picture Engineers, Mr. Kerst is nationally known as an expert on the technical aspects of movie making. This month he discusses in this department several interesting ways in which the amateur movie maker can secure novel effects with his camera.
by MANLY S. MUMFORD WHEN a motorist asks for five gallons of gasoline at an oil station, he may get it. And he may not. He may get four and a half gallons of gasoline and a half gallon of kerosene, furnace oil or some other adulterated form of gasoline. There are many ways in which oil stations can, if they are so minded, bilk the public, and many of them do it.
WHILE roaring around the Motor Parkway track at Mineola, Long Island, New York, the racing car of William Darragh took matters of direction into its own hands. Darragh was taking part in a six-lap elimination race at the Mineola Fair. During the second lap his car skidded, and rearing like a broncho slammed into an adjacent iron fence.
COO-COO Contest Number 4 Names of the Winners of Coo-Coo Contraptions Contest No. 1 and Details of Contest No. 4 are Printed Below. LISTEN in now, all you folks who sent in entries in Coo-Coo Contraptions Contest No. 1! The winners have been picked and we’re all set to announce the names of the seven […]
USING a special dry-land pressure tank, Navy officials have perfected a method of training deep-sea divers to combat perils hundreds of feet beneath the surface of the sea. YOUNG men who wish to become deep-sea divers can learn the fine points of the profession without getting any closer to the ocean than Washington, D. C, thanks to scientists who have developed a system of pressure-tank training which enables divers to stand on the bottom of a tank twelve feet deep and experience exactly the same pressure and temperature conditions that obtain in the ocean at depths of 200 to 300 feet.
SINGLE-RUNNER COASTER THERE is a knack to keeping one’s balance on a single-runner coaster which you may acquire quickly, or may not. The coaster requires a l-by-4 board 6 feet long for the runner and brace. The runner must have a slight curve to its bow, as indicated in Fig. 1. To warp the wood, […]
NEW PLEASURE CRAFT A LOS ANGELES man has invented a new type of pleasure boat. The boat has a round, metal air-filled pontoon to keep it afloat. There are twin paddles to control the boat. One of them furnishes the motive power while the other steers the odd craft. The interior of the boat is […]
Herr Rumpler, famous designer of Germany's war time fighting planes, is turning his peace time activities to good account in developing the world's largest airplanes. Rumpler, shown above in a characteristic pose at his drafting board, is now building an enormous monoplane which will have wings large enough to place staterooms in. A new blunt-nosed wing section is used to effect this design.
NEW MOTORCYCLE CAN ATTAIN SPEED OF 100 M. P. H! RECENTLY the Ascot Paulhan Co.. of London, announced a new model motorcycle that is attracting wide attention. This machine is of the conventional type but has been vastly improved both in appearance and in mechanical make-up. The most noteworthy of these changes is the new […]
Unfortunately if you like vodka, you’re screwed. WHISKEY or DRUG HABIT Cured Forever or No Pay. Full treatment sent on trial. Can be given secretly in privacy of home. Guaranteed to banish forever all desire for whiskey, gin, wine, home brew, moonshine, opium, morphine, heroin, paregoric and laudanum. Costs $2.00 if cures, nothing if fails. […]
TRAFFIC regulations have made no qualifications concerning the size of a car. Here is the world's smallest car taking the right of way in Brooklyn, N. Y. Officer Thomas Hallman was rather surprised when Master Bernard Muller and his playmate, Miss Adele Wallack, rolled up to the corner.
BERLIN postal authorities have adopted a new invention that promises to be of real help to all. The automatic stamp vending machine which can be attached to trolley wire posts will relieve a long felt need. The photograph shows a customer operating the crank that produces the stamps. How many times have letters been written, only to be carried in the pocket because there was no stamp with which to post it! The Berlin idea is very simple.
It’s All Gold that Glitters Here HALF of the yearly gold production of the world passes through the great refinery at Germinston, South Africa, where the photographs shown on this page were taken.
BALDNESS seems to be the fear of all men. Here is the newest remedy for that fear. The new motor-driven scalp exerciser is guaranteed to give the scalp all the exercise that it needs. Scientifically the principle that this machine exemplifies is correct. Since blood is the food on which all the tissues of the body feed, the supply must be kept fresh and plentiful.
by CAPT. EDDIE RICKENBACKER Commander of the First A. E. F. Air Squadron in the World War. GIANT dirigibles a mile in length, airplanes capable of flying at 500 miles an hour—these are only two amazing developments which Capt. Rickenbacker predicts are waiting just around the corner of the new air age in which we live. Being the greatest of America's war aces as well as a motor car engineer of national reputation, Capt. Rickenbacker's predictions are those of a recognized authority.
PERMANENT LETTER FILE ANYONE possessing a phonograph can read the “photovox letter” shown above, by merely placing the plate on a machine and playing it like any other record. The chemical process that was devised to manufacture the photovox disc and retain a permanent record of the spoken word was the work of two Vienna […]
MODERN MECHANICS pays $10 for every acceptable photo and description of the odd uses to which old Tin Lizzies have been put. The machines shown below are all made from old Model T Fords. DOWN at Iowa Park, Texas, is an old flivver motor which is enjoying a ripe old age puffing and grunting on half her lungs while the other half supply fresh ozone for tires which have lost the courage of their convictions.
Is there a limit to the speed which the human body can withstand? Five miles a minute caused no ill effects for the English aviator who recently attained this speed. RECENTLY broken records for speed in various methods of transportation have bettered the marks of recent years by such a wide margin that scientists are asking the question, "How fast can man travel before the functions of his body cease to be normal? Is there a limit?"
THIS remarkable instrument, which is in reality a battery of lenses no bigger than a cigar box, enables the optician to secure over one million combinations of lenses almost instantaneously. The London Refraction Hospital which has recently been rebuilt at a cost of $50,000, contains this machine among many others of the same type.
HEN BRAVES FLOOD ONE of the refugees in the recent Mississippi flood was an old Plymouth Rock hen who floated around on her box-board raft until she was rescued. The photograph shows biddy registering joy as her owner approaches in a canoe. The hen may be seen to be wearing a complacent, self-satisfied expression, but […]
BELIEVE it or not, the United States Government has issued letters patent on the extraordinary devices pictured on this page. The average owner of a patent is lucky if he breaks even on expenses. Out of some two million patents granted in this country, the number which never make a cent for their inventors reaches staggering proportions.
By RAOUL WHITFIELD Wartime Aviator and Famous Author of Air Fiction ISSOUDUN, FRANCE. August, 1918. Grey sky, spit of rain. Two fifteen-meter Nieuports doing combat work at eight thousand, just under the clouds. And then, wings too close, the crash! I've seen a lot of sky bangs. This one took the prize. I watched it from the earth—it was my turn to take one of these ships up next. It was my turn, but I didn't take one. They tangled wings, and one ship spun free like a top. A wing dropped loose as she spun, But not her wing—the other plane's.
LOS ANGELES is the home of many unique advertising attractions. One of its more enterprising concerns conceived the idea of a sign board that would be an architectural beauty. It was to take the form of a picture frame with the subject acting as the picture. A large wood frame was erected, plate glass fitted and the sign was ready.
HERE’S AN EYE OPENER FOR YOU! THE Electrical Show recently held in the Grand Central Palace, New York City, presented showings of several very novel electrical devices. One of the most practical inventions was a magnetic instrument for removing metallic particles from the human eye. The human optic is very delicate and must be freed […]
New Auto Lock Shuts Off Gasoline and Ignition AUTOMOBILE thieves are thwarted by a new steering wheel lock which has been invented in England. This lock fits the steering column in the conventional manner, as shown in the photo. When locked it not only makes steering impossible, but also cuts off the ignition and stops […]
Just what I’ve always needed! New Fountain Pen Umbrella is Latest From Paris PARIS, the creating source of the latest fashions, sent this new fountain-pen umbrella to America recently. This very new device is merely a standard umbrella with a hollow handle. A top is screwed onto the handle, making it a container into which […]
DOG SHOWS MUSICAL TALENT EVERY now and then a dog is seen on the stage that seems to almost have human intelligence. This dog shows exceptional musical ability when he sits on the bench of an automatic piano and pats the keys, as the piano plays. That he has a musical sense of rhythm is […]
New anti-aircraft gun aims itself by sounding device to guard America from air raiders. PEOPLE who lived in London during the late World War will vividly recall the feeling of helplessness that possessed them when Germany bombed that city on several occasions. They will tell you that the murderous cargoes of bombs were dropped from Zeppelins and Gothas which cruised the thin upper realms of the heavens with nothing more harmful than an occasional searchlight beam touching them. The anti-aircraft guns were powerless. Why? Any aviator familiar with anti-aircraft ordnance could tell you. He would laugh at the thought of an anti-aircraft gun actually scoring a direct hit. Planes brought down by shrapnel from the ground were planes that were just "in the way," he would tell you.
WHETHER you want a book that you can carry around in a thimble, or one which requires a truck to move about, you can find what you are looking for in the great libraries of the world. The pictures on this page show some of the Davids and Goliaths of the book world. Taller than an average man, this huge atlas is more than 400 years old, dating from the 16th century. It is housed in the University of Rostock, Germany. The man in the picture is studying a map of the world as it was known to scholars of the middle ages. Note the hinges for clasping the book shut when not in use.
BARREL STAVE SKIS IF ONE of your bunch can scare up a barrel, that barrel will furnish staves for a dozen skis. You will see by the diagram that a piece of board is fastened several inches forward of the center of the stave, and that a house slipper is nailed to this board. If […]
USING complicated machines, modern bakeries turn out millions of cookies every day to satisfy the American sweet tooth. MUCH has been said of quantity production, and in the public mind the term usually is associated with motor car assembling. But the process of continuous manufacture was in use in other industries long before the automobile achieved its remarkable popularity.
Wow, I think this car marks the point when the “trunk” of a car ceased to be literally a trunk attached to the rear. NEW TRUNK RACK FOR SEDAN AMONG the models seen in the great automobile show at Olympia, England, was a Jowett fabric sedan. This car, as seen in the photo below, is […]
KING GEORGE BUYS PIPE WHEN the King and Queen visited the British Industries Fair in London, His Majesty was extremely interested in a tray of pipes. There were pipes of all sizes and kinds. There was one pipe that took the eye of the King. It was the largest of them all. King George seemed […]
EAST INDIAN MERRY-GO-ROUND ONE of the most popular sports for young people in India is riding in merry-go-rounds of the type shown in the photograph. It seems to American eyes to he a crude imitation of the Ferris wheels which are so popular in amusement parks. Four chairs are suspended from X-like cross pieces which […]
By GEORGE C. HENDERSON MILLIONS of dollars are being spent by movie magnates in equipping studios for the production of talking pictures. Mr. Henderson visited a "talkie" in the making and in this article gives a fascinating glimpse of what goes on behind the scenes. THEY'VE got to wear sneakers on their cowboy boots in moviedom now. The yelling director has been stricken dumb. His megaphone has gone back to the prop room. The big fellow with the blasting voice is outside the gates looking in, on the "extra list." They say he "bloops." The little lady who speaks with a hissing sibilance is out there with the blooper. She is called a "sizzler." The hollow-voiced tragedian is told that his tones are "tubby" (as if he were speaking into a tub) and if he cannot correct the defect, he goes out too. Weak voiced persons "get the gate" with those above mentioned. They are called "juice suckers."
PIPE FOR FALSE TEETH SMOKERS PIPE smokers who wear false teeth can now enjoy the use of a pipe with a specially designed mouthpiece which enables it to be held easily in the mouth. The photograph clearly shows the semi-circular projection extending from the pipe stem. This mouthpiece rests along the top of the false […]
ONE of the most unique candy stores in America is the "Candy Meat Market" which is run by Jim Crowe in the loop, Chicago. Here Mr. Crowe is seen posing for a photo in the midst of his candy meats. Everything in the store, except the actual fixtures, is made of candy. So well are all the meats imitated that the hams smell of that salty tang that is so familiar to all of us.