interstellar grain वाक्य
उदाहरण वाक्य
मोबाइल
- Wickramasinghe published the first definitive book on " Interstellar Grains " in 1967.
- Scientists said the new object might be richer in interstellar grains than any meteorite yet studied.
- Samples of these interstellar grains should provide scientists with a pristine record of the explosive conditions in which they were forged.
- The interstellar medium can produce circularly polarized ( CP ) light from unpolarized light by sequential scattering from elongated interstellar grains aligned in different directions.
- Martin showed that the interstellar medium can convert LP light to CP by scattering from partially aligned interstellar grains having a complex index of refraction.
- So on average, a starlight photon is scattered from a single interstellar grain; multiple scattering ( which produces circular polarization ) is much less likely.
- Instead he predicted that unusual but predictable isotopic compositions would be found within thermally condensed interstellar grains that had condensed during mass loss from stars of differing types.
- Then, in the 1970s, astronomers Fred Hoyle and Chandra Wickramasinghe studied the infrared spectra of interstellar grains of dust and concluded that they were dried, frozen bacteria.
- On one side of the racket will be the comet dust, quite possibly containing interstellar grains that were the building blocks for the solar system 4.6 billion years ago, thus the name Stardust.
- Peter Jenniskens and David F . Blake demonstrated in 1994 that a form of high-density amorphous ice is also created during vapor deposition of water on low-temperature ( < 30 K ) surfaces such as interstellar grains.
- He hoped that such interstellar grains could be discovered within meteorites; and he also advanced a related theory that he called " cosmic chemical memory " by which the effects of stardust can be measured in meteoritic minerals even if stardust itself no longer exists there.
- Hildebrand believes the interstellar grains within the Tagish Lake fragments could have originated long ago on the surface of some carbon-rich " red giant " star and were pushed out into space, sailing under the pressure of that star's solar wind of sub-nuclear particles.
- The arguments are that : given an observed typical grain diameter " a ", the time for a grain to attain " a ", and given the temperature of interstellar gas, it would take considerably longer than the age of the Universe for interstellar grains to form.
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