Swinging Buildings to Defy Quakes
UNTIL the age of steel construction, no building could be trusted to defy an earthquake; but a steel building, riveted or welded together, will stand quite a wrench without being pulled apart.
Wow. The Japanese have been quake testing buildings for a long time. Here’s a video of more recent, slightly larger test.
MAN-MADE QUAKES TEST BUILDING’S STABILITY
Tests to determine the type of building best adapted to withstand earthquakes are made on a machine which reproduces, with realistic intensity, the horizontal and vertical vibrations caused by a genuine tremor.
When Rivers Run Wild
by Howard Kegley
California, subject to periodic rainfall and melting of snows in the mountains, has been victimized by rampant rivers in the score of months just past. Told here, the story of the San Gabriel Dam shows the gigantic size of this water impounding monster, and how two rivers will be controlled with one dam.
Damming a River of Fire
By WARD MADDEN
THE strangest fortification line on earth is being planned for the island of Hawaii. For thirteen miles across the flanks of Mauna Loa, the world’s most active volcano, high barricades will dam and divert rivers of fire. This daring scheme is designed to protect the Hawaiian city of Hilo, with its 20,000 inhabitants, from the volcano’s flow of lava. Science, for the first time in history, has declared war on a volcano.
Project for Flood Relief Stations
NOBODY calls the Mississippi River “America’s Sorrow,” as the Hoang-Ho has been called that of China; but the Father of Waters has a habit of going on a spree with great regularity, and his numerous tributaries do likewise. It is probable that, given time enough, engineers will have built sufficient reservoirs and levees or embankments to keep the angry waters in check till they reach the Gulf of Mexico.
Army Recruited from Idle Men
WARS AGAINST FIRE and FLOOD By Robert E. Martin
A YEAR ago the Government, with incredible swiftness, created the Civilian Conservation Corps. Two ends were sought in its creation. It was designed first of all to take out of the ranks of the unemployed 300,000 young, single men with dependent relatives. Of equal importance was the intention to use the labor of these men in conserving the vast timber and soil resources of the country.
Radio Amateurs to the Rescue in Florida Hurricane
During disasters radio “hams” come to the rescue. They keep in touch with lonely outposts, with explorers, arid like sentinels in the night guard against death.
by Clinton B. De Soto
WHEN a roaring hurricane swept through Florida in September, unknown amateur radio operators became heroes in the midst of death and destruction. Through howling wind and pelting rain they tapped away on their low-power transmitters when telephone, telegraph, and powerful broadcasting stations failed.
Their dots and dashesâ€”the language of the radio amateurâ€”hurtling through the ether flashed to the rest of the world news of the disaster and set the great task of relief into motion.