Word: mi.
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...England's late (1850-1925) Oliver Heaviside, bookstore keeper who for amusement invented mathematical forms to describe the behavior of alternating currents. Radio waves are presumed to reflect from the Layer much as light beams reflect from a mirror. Estimates place the Layer at 50 to 250 mi. from Earth's surface and picture it as roughly spherical.* At night the Layer shrinks comparatively close to Earth; by day, as the Sun puts in its effect, it recedes. But this theory of diurnal, tide-like pulsation has not explained all radio reactions against the Kennelly-Heaviside Layer...
...Harry B. Maris, observing radio signals one day, noticed that they came with an unaccountable time lag. He could explain the lag by supposing that the radio waves were reflected from a layer of ions 1,300 mi. high. If his supposition was valid, the Kennelly-Heaviside Layer was not a pulsating spheroid, but a spheroid with one axis pushed out to make a shape much like that of a standard X-ray tube, with Earth & its inhabitants at the centre. The distances from the Earth's magnetic poles to the ends of the '"tube" would be about...
Leila Roosevelt, 26, mother of four, wife of Armand Denis who made the film Goona-Goona, second cousin of Mrs. Franklin Delano Roosevelt, planned a 12,000-mi. motor trip through Asia and a book on Persian women. Said she: "I am glad of the relationship. It will enable me to get plenty of letters of introduction done up with great gold seals and bright ribbons. I don't care much what the letters...
...Mount Van Hoevenberg bob-sled run at Lake Placid, N. Y. is no ordinary coasting hill. It is an ice-lined ditch 1 1/2 mi. long, twisting down the side of a comparatively small Adirondack mountain. The sleds that go down it are $400 machines equipped with steering wheel, brakes, and seats ten inches above the runners. They weigh 485 lb. and are stored in a garage at the foot of the slide. Such deluxe coasting is a new sport for the U. S. The Mount Van Hoevenberg run was constructed two years ago because the program of winter sports...
...Hoevenberg run is the only one in the U. S. and since it takes an immense amount of practice to become an expert bobber, it is natural that almost the only competent bobbers in the U. S. as yet are sportsmen of some means who live within a 20-mi. radius of Lake Placid. The four Stevens brothers manage a Lake Placid hotel which they inherited from their father. They win so many bob-sled races-last fortnight they took all the events in the national A. A. U. champion-ships-that impartial observers might easily infer that New York...