April 2025: 50, 100 and 150 years ago history of science
Mysterious gamma rays; Snake
1875, Better Long Bridge: “The bridge shown is made of a middle truss and two end trusses. The arches under the end truss form the compression cord. (Heavy) curved line is a chain that is under constant stress, anchored at each end, and the ends are sits on the curved beds of the rollers. The arches and rays are designed to hing.”
scientific American, Volume. XXXII, number 17; 24 April, 1875
1975
Mysterious gamma rays from space
“As a result of the partial test-ban treaty of 1963, the US launched five satellites to act as a monitor. Each satellite launched five satellites. Each satellite was equipped with detector designed to respond to gamma rays from a nuclear explosion. The topic of gamma rays, but this source could not have any if it could have anything.
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Each burst lasts for about 10 seconds and does not recur. Since 1967, an average of four bursts has been detected per year. The sources are randomly distributed on the sky. The principles about his origin have spread. Perhaps gamma rays were produced in incidents that gave rise to radio outbreaks of Quassers. Or perhaps they originated from supernova in shock waves. Or they were associated with stars or X-ray sources provoked within our own galaxy. There are even more foreign theoretical possibilities. In New scientistAndrew Fabian and the University of Cambridge University James Printing Comment: ‘We hope the rate of new bursting discovery is higher than the rate of production of new principles.’
1925
Cleaning icy roads with TNT
“The snow that burns some mountain roads in the western states will suddenly depart from its rest in the spring, if the experiment will be planned with explosives. The explosion is done, and if, as hope, the ice immediately fly from the highway, the new method will be used on a large scale after the later winter.”
Today’s forecast: heavy static
“There is a growing desire from the broadcasters as well as the audience, as well as, as the weather bureau’s prediction radio reception, as it does. Some studies have been done in relation to static and weather conditions.” In arranging feature programs, the broadcasts will be a boon to know for the audience to know whether last night that radio party or next night. “
1875
Cleaning icy roads with fire
“Heavy snowfall has brought the great need to remove a great ignorance well.
Snake
“A wonderful poisonous snake has found a house in the London Zoological Garden. It is a snake -eating snake, called a snake. OffiophagusFound in India, and Andaman and the Philippine Islands. This is the largest known toxic snakes. Shortly after its arrival, it was fed by the keeper, which put a simple English snake in its cage. Offiophagus Quickly headforced him and ate the English snake. Normally this new snake is like a common cobra. The head is like a high lizard. The eye is highly clear and bright. When it bothers it, it causes loudly, and shows its nature by taking out its long, black, thorny tongue, which vibrates with amazing celebrity. ,
