 | Philip Morrison, John Billingham, John Wolfe - 1977 - 298 páginas
...origin will be most apt to be detected in the so-called microwave window: wavelengths from about 0.5 to 30 cm. Natural noise sources rise to great height...telescopes used as transmitters. The large antenna at Arecibo could detect its counterpart thousands of light years away. Indeed, it could detect transmissions... | |
 | Philip Morrison, John Billingham, John Wolfe - 1977 - 306 páginas
...origin will be most apt to be detected in the so-called microwave window: wavelengths from about 0.5 to 30 cm. Natural noise sources rise to great height...telescopes used as transmitters. The large antenna at Arecibo could detect its counterpart thousands of light years away. Indeed, it could detect transmissions... | |
 | Philip Morrison, John Billingham, John Wolfe - 1977 - 204 páginas
...origin will be most apt to be detected in the so-called microwave window: wavelengths from about 0.5 to 30 cm. Natural noise sources rise to great height...Galaxy. We concur with these arguments. (See Section 11-4.) Existing radio telescopes are capable of receiving signals from our interstellar neighbors,... | |
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... ease of generation, direction and detection. None flies faster, none has less energy and is therefore cheaper than the radio frequency photon. It has long been argued that signals of extraterrestrial origin will be most apt to be detected in the so-called... 