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| The Early Days of Space Exploration | |
| 作者： | Daniel E. Harmon |
| 出版社： | Britannica Educational Publishing |
| 組合： | Read and Discover Series (Secondary)_III |
| 簡介： | Since ancient times, people have envisioned the possibility of space travel. Spaceflight finally became a reality after many centuries of scientific study on two fronts: astronomy and flight. Theories about the solar system were proposed, tested, and revised. Instruments for examining the night skies were invented and improved. Flight was accomplished as a result of countless experiments—some of them deadly. This resource traces space exploration—one of the most exciting pursuits in history—from the legend of Icarus to the reality of Sputnik. |
| 標籤： | 天文, 科技, 英文 |
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