Asteroid

Xem 1-20 trên 25 kết quả Asteroid
  • On a remote asteroid a garrison of human explorers/colonizers is gradually succumbing to a strange psychological condition: one by one people start believing that they had become plants. A psychiatrist is assigned to work with these unusual cases, and based on the reports that he hears decides to visit the asteroid. There he searches for the ultimate cause of the underlying "psychosis", but it may be that the psychological state is just a reflection of some underlying and disturbing reality.

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  • Dưới đây là danh sách 500 tiểu hành tinh có kích thước lớn nhất Hệ Mặt Trời. Trong số này không chỉ có các tiểu hành tinh từ vành đai tiểu hành tinh (asteroid belt) nằm giữa Sao Hỏa và Sao Mộc mà còn gồm cả các tiểu hành tinh thuộc nhóm TNOs (trans-Neptunian objects) - nhóm các thiên thể nhỏ có quĩ đạo xa hơn quĩ đạo trung bình của Sao Hải Vương.

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  • Second, your performance on these questions will help you assess your vocabulary strengths and weaknesses. For example, you may find that you do very well with words that are cognates (words from a common original form, such as asteroid and astronomy), but not so well on foreign words.

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  • Our solar neighborhood is an exciting place. The Solar System is full of planets, moons, asteroids, comets, minor planets, and many other exciting objects. Learn about Io, the explosive moon that orbits the planet Jupiter, or explore the gigantic canyons and deserts on Mars.

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  • Written by a premier astronomy expert, this book begins with a discussion of the Sun, from sunspots to solar eclipses. It then features over 100 tables on characteristics of the Moon, and the names, positions, sizes, and other key descriptors of all the planets and their satellites. The book tabulates solar and lunar eclipse, comets, close-approach asteroids, and significant meteor showers dates. Twenty-four maps show the surface features of the planets and their moons. The author then looks to the stars, their distances and movements, and their detailed classification and evolution.

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  • NOCARDIOSIS: 1-Dịch tễ học và Căn nguyên: -Nocardia sp. là các vi trùng thượng đẳng, dạng sợi, Gram(+), yếm khí gặp khắp nơi trong đất, cây cối, có thể tìm thấy trong bụi nhà, cát biển, đất vườn, nước hồ bơi. Yếu tố nguy cơ: Nam Nữ; người giảm miễn dịch (50%, đa số nhiễm trùng ở phổi, CNS, toàn thân); bệnh nhân AIDS, bệnh ác tính, dùng corticosteroides. -Chủng thường gặp: N. brasiliensis, N. asteroides; chủng khác: N. farcinica, N. abscessus, N.nova... ...

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  • Since the time of Newton the basic structure of the solar system and the laws that govern the motions of the bodies within it have been well understood. One central body, the Sun, containing most of the mass of the system has a family of attendant planets in more-or-less circular orbits about it. In their turn some of the planets have accompanying satellites, including the Earth with its single satellite, the Moon. With improvements in telescope technology, and more recently through space research, knowledge of the solar system has grown apace.

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  • Có thể nói, Vành đai Tiểu hành tinh là một sự thành công nổi tiếng nhất của Định luật Bode và sau đây là câu chuyện Vành đai Tiểu hành tinh đã đựơc tìm ra như thế nào.

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  • Bill Cassidy led meteorite recovery expeditions in the Antarctic for fifteen years and his searches have resulted in the collection of thousands of meteorite specimens from the ice. This personal account of his field experiences on the U.S. Antarctic Search for Meteorites Project reveals the influence the work has had on our understanding of the moon, Mars and the asteroid belt. Cassidy describes the hardships and dangers of fieldwork in a hostile environment, as well as the appreciation he developed for its beauty.

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  • Early in the morning on June 30, 1908, a giant airburst occurred over the basin of the Podkamennaya Tunguska River in Central Siberia, Russia, leveling trees over an area of 2,000 km2 (770 mi2) (Figure 1). Eyewitnesses described a ―fire ball, bright as the Sun‖ (Longo, 2007). The event produced seismic and pressure waves that were recorded all over the world and led to atmospheric phenomena (e.g. , bright nights, noctilucent clouds) observed over much of Eurasia.

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  • Nocardiosis refers to disease caused by bacteria of the genus Nocardia. Pneumonia and disseminated disease are most common. Other forms include cellulitis, lymphocutaneous syndrome, actinomycetoma, and keratitis. Microbiology Nocardiae are saprophytic aerobic actinomycetes and are common worldwide in soil, where they contribute to decay of organic matter. Nocardial taxonomy is complex and incompletely understood. As taxonomy continues to evolve, any nocardiae isolated from a human should be considered potential pathogens.

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  • Humans have been exploring their world for thousands of years. People love to discover and learn about new places. Some of today's explorers are making exciting new discoveries in space. Many objects are found in the universe. These include asteroids, planets, moons, comets, and stars. Astronomers are scientists who study the objects in space. People who travel to space to learn about it are called astronauts.

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  • Organic production, however, does not necessarily guarantee higher wholesale or retail prices. A 2004 Organic Research Foundation survey of organic farmers found that only 41% of the respondents received a price premium for all of their organic products. Another 86% reported receiving a price premium on some portion of their organically grown products. Price competition with conventional products and limited local demand (e.g. in rural areas) are some of the reasons mentioned for failure to receive price premiums.

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  • This thing really started before the time I had Willy Maloon under observation when he gunned the small runabout well past cruising speed in order to reach the little asteroid as soon as he could. At times like that he showed undue impatience. I was following at a discreet distance behind him, homing in on the rock, too. I had to find out what he was up to. Archie Crosby, the obliging

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  • THE SIGNALS from space began a little after midnight, local time, an a Friday. They were first picked up in the South Pacific, just westward of the International Date Line. A satellite-watching station on an island named Kalua was the first to receive them, though nobody heard the first four or five minutes. But it is certain that the very first message was picked up and recorded by the monitor instruments.

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  • IT'S difficult, when you're on one of the asteroids, to keep from tripping, because it's almost impossible to keep your eyes on the ground. They never got around to putting portholes in spaceships, you know—unnecessary when you're flying by GB, and psychologically inadvisable, besides—so an asteroid is about the only place, apart from Luna, where you can really see the stars.

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  • Harley 2Q14N20 stopped for a moment outside the great dome of the Celestial Developments Company. Moodily he stared at their asteroid development chart. It showed, as was to be expected, the pick of the latest asteroid subdivision projects: the Celestial Developments Company, established far back in 2045, would handle none but the very best. Small chance of his finding anything here! However, as he gazed at the chart, hope came suddenly to his face, and his heart beat high under his sapphire blue tunic.

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  • JON KARYL was bolting in a new baffle plate on the stationary rocket engine. It was a tedious job and took all his concentration. So he wasn't paying too much attention to what was going on in other parts of the little asteroid. He didn't see the peculiar blue space ship, its rockets throttled down, as it drifted to land only a few hundred yards away from his plastic igloo. Nor did he see the half-dozen steel-blue creatures slide out of the peculiar vessel's airlock. It was only as he crawled out of the depths of the rocket power plant...

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  • WELL, Corporal Westerburg," Doctor Henry Harris said gently, "just why do you think you're a plant?" As he spoke, Harris glanced down again at the card on his desk. It was from the Base Commander himself, made out in Cox's heavy scrawl: Doc, this is the lad I told you about. Talk to him and try to find out how he got this delusion. He's from the new Garrison, the new check-station on Asteroid Y-3, and we don't want anything to go wrong there. Especially a silly damn thing like this! Harris pushed the card aside and stared back up at the youth across the desk from him. The...

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  • lit a cigarette, the last one they had, and asked his wife "Want to share it?" "No. That's all right." Diane sat at the viewport of the battered old Gormann '87, a small figure of a woman hunched over and watching the parade of asteroids like tiny slow-moving incandescent flashes. Ralph looked at her and said nothing. He remembered what it was like when she had worked by his side at the mine. It had not been much of a mine. It had been a bust, a first class sure as hell bust, like everything else in their life together. And it had aged her. Had it only...

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