What If the Earth Had Two Moons? 在线电子书 pdf 下载 txt下载 epub 下载 mobi 下载 2024

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Neil F. Comins 作者

St. Martin's Press

译者

Mar 30 2010 出版日期

320 页数

CDN$ 31.99 价格

Hardcover

丛书系列

9780312598921 图书编码

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What If the Earth Had Two Moons? 在线电子书著者简介

Neil F. Comins is a professor of physics and astronomy at the University of Maine and author of popular scientific books, articles and textbooks. He earned a Bachelor of Science degree from Cornell and a Ph.D in astrophysics from University College, Cardiff, Wales

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"What if?" questions stimulate people to think in new ways, to refresh old ideas, and to make new discoveries. What If the Earth Had Two Moons leads us on a fascinating ten-world journey exploring what the Earth would be like under alternative astronomical conditions. In each case, the Earth would be different, often in surprising ways. The title chapter, for example, gives us a second moon orbiting closer to Earth than the one we have now. The night sky is a lot brighter, but not forever. Eventually the moons collide, with one more-massive moon emerging after a period during which Earth has a Saturn-like ring. These different scenarios also provide us with insights into the Earth as it exists today and they shed new light on the burgeoning search for life on planets orbiting other stars. Appealing to adult and young adult alike, this book follows on the author's previous bestseller, What if the Moon Didn't Exist? with completely new scenarios backed by the latest astronomical research.

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