Word: breakthrough
(lookup in dictionary)
(lookup stats)
Dates: during 1950-1959
Sort By: most recent first
(reverse)
Minuteman is the latest major weapons system to grow from the big breakthrough in the development of solid-fueled missiles. Almost as soon as scientists found solutions to solid-fuel problems, the relatively inexpensive, highly mobile, easily handled solid-fuel missiles opened up whole new prospects of operation. And at the same time they doomed to swift obsolescence the cumbersome, complex, costly, "first-generation" liquid-fuel missiles, with their big, liquid-oxygen plants, their long fueling time before launching and their intricate plumbing...
...First Breakthrough. At 42, Theodore Roosevelt stood at the pinnacle of the power he had long sought. He understood power; he understood the power of the nation and its parts; he understood the power that the nation had-or ought to have-in the world. But although T.R. controlled the White House, it was National Committee Chairman Hanna who controlled the G.O.P. organization, Mark Hanna who could water down or wreck T.R.'s programs in Congress, Mark Hanna who could ruin T.R.'s influence by blocking his nomination in 1904. So T.R., ruthlessly shrugging off Hanna...
...onetime laborer called "Colonel" Laskri Amara, who prowls the strip between the fence and the Tunisian border. Amara's men operate with insulated wire cutters, drive cattle in to set off the land mines sown along the line and frequently draw French troops away from a genuine breakthrough by first feinting an attack on the fence in a totally different location. By these means-and the simple expedient of sending many convoys south of Tebessa where the Morice line ends-the F.L.N., the French estimate, smuggles 2,000 weapons a month into Algeria from Tunisia...
...protein. For treating burns and in plastic and reconstructive work, surgeons would be able to do much more for patients if they could break down this automatic defense system. Last week, from a Manhattan conference sponsored by the New York Academy of Sciences, came word of the most promising breakthrough yet on the antibody front...
Thorny Problems. Neither the British nor U.S. scientists claim that they have made a breakthrough that will quickly yield controlled thermonuclear power. Much higher temperatures, above 100 million degrees, will be needed before the fusion of deuterium gives off even as much energy as it consumes. All sorts of thorny practical problems will have to be solved before thermonuclear energy flows through practical wires. No one wants to predict definitely how long it will take. "It couldn't possibly be less than ten years," says Sir John Cockcroft. "It might be as long as 50. Twenty plus is about...