Word: hydrogens
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...school argues that an IL-28 could easily deliver the latest nuclear test devices, while a second school believes that the Chinese are working to bypass the bomber stage and are pouring their energies into producing rocket-deliverable hydrogen warheads. Though U.S. Defense Secretary Robert McNamara maintains that the Chinese will not have a functioning ICBM until 1975, many Hong Kong China-watchers believe that Peking will have full-fledged ICBM thermonuclear capability by 1970 or 1971. "They're never going to be able to challenge the U.S. or the Soviets in a nuclear shoot-out," says...
...delicate an instrument is the human ear that at certain frequencies it can discern sound that moves the eardrum a distance only one-tenth the size of a hydrogen atom. The close-up roar of a jet engine amounts to one million billion times this threshhold level; this causes actual pain and soon brings on permanent deafness. Sound vibrations are transmitted by the eardrum and ossicle bones to the inner ear, a bony and membranous structure lined with tiny hairs that connect to the brain's auditory nerve. It is these hairs that are damaged most in noise-induced...
Nature's most catastrophic events are supernovae-rare stars that burst with a brilliance 100 million times more luminous than the sun, releasing the equivalent of 200 trillion trillion 100-megaton hydrogen bombs. Swiss Astronomer Paul Wild has just added a new one to the stellar log-the first supernova seen from the earth in the unnamed galaxy N.G.C. 4189 in the constellation Virgo...
...supernova's own gigantic size is its undoing. Astrophysicist Subrahmanyan Chandrasekhar calculated that a star whose mass is greater than 1.44 times the sun's mass cannot follow normal stellar evolution. Over a few million years, burning hydrogen on the outer layers of such a star produces more and more helium at its core. The doomed star's interior shrinks rapidly; and the density of its core increases. As temperatures rise in the contracting core, the collected helium is converted into successively heavier elements, such as iron and gold, which crowd the lighter elements outward...
Inside the buildings, the electron beam is fired at targets such as metallic sheets or containers of liquid hydrogen. As a high-energy electron approaches the nucleus of an atom in the target, one of two things happens: it veers off in a different direction, or it actually shatters the nucleus-and the reaction often produces new and different particles that exist for only billionths of a second...