Word: diameterically
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The message itself was succinct: a three-minute transmission in mathematical code describing the make-up of the solar system, the inhabitants of earth, the present world population and the double helix of the heredity molecule DNA. The signal was transmitted last week by a team of U.S. scientists from...
A woman who is familiar with what her breasts feel like in their normal state should be able to recognize any thickening immediately and detect a lump less than half an inch in diameter. If she does find one, she should see her doctor without delay.
Unfortunately, a radio telescope that could accomplish the equivalent of what, say, the 200-in. Mount Palomar telescope does optically would have to consist of a dish-shaped structure many miles in diameter-an obviously impractical requirement.
To overcome this problem Ryle, who was knighted in 1966 and named England's Astronomer Royal in 1972, conceived of simultaneously using several small and widely spaced radio telescopes only 10 yds. in diameter and zeroing all of them in on a celestial object.
Radio Beacon. Further observations by Hewish and other radio astronomers soon put this tantalizing speculation to rest but eventually confirmed that a pulsar is a neutron star. Space, in fact, seems to be full of neutron stars. Since Hewish and his assistant, Jocelyn Bell, found the first one, about 100...