租期
发表于 2025-3-21 19:56:45
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值得尊敬
发表于 2025-3-21 22:50:18
Overview: A guide to astronomy which attempts to offer the most up-to-date information on the subject. Designed to be used for either individual study or classroom use, the book covers the GCSE syllabus requirements and relevant elements of physics, general science and general studies courses.978-0-333-45656-9978-1-349-19604-3
权宜之计
发表于 2025-3-22 03:02:29
The Celestial Sphere,The Greek philosopher Ptolemy summarised the ancient view of the structure of the Universe in about 140 .. This view placed the Earth at the centre of the Universe with the Sun, Moon, planets and stars attached to crystal spheres, concentrically arranged, that revolved about the Earth.
pulse-pressure
发表于 2025-3-22 05:41:15
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LAP
发表于 2025-3-22 09:58:17
Modern Developments in Instrumentation,Astronomy is the oldest science but astronomers are very modern people. They have been quick to exploit the developing technology in applying new techniques and instrumentation to the study of the Universe.
排斥
发表于 2025-3-22 14:21:07
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fatty-acids
发表于 2025-3-22 19:08:51
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QUAIL
发表于 2025-3-22 23:46:26
Electromagnetic Radiation,Apart from meteorites and a few hundred kilograms of lunar rock samples, all our information about the physical Universe comes to us via electromagnetic radiation. Visible light is just one form of this radiation.
cogitate
发表于 2025-3-23 05:25:27
Violent Stars,Gaze up at the starlit sky most evenings and you will feel that the heavens are unchanging and serenely peaceful. Just once in a while you may see something to remind you that this impression is far from true.
Evocative
发表于 2025-3-23 06:08:06
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