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美国科普杂志《发现》【Discover】2017年1-2月全文PDF下载
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 Discover - January/February 2017 (The Year in Science) English | 100 pages | True PDF | 26.8 mb 100 TOP STORIES OF 2016 1 Einstein's Ripples in Space-Time p.7 Finally found! Gravitational waves offer a new way to study the universe. BY ERIC BETZ 2 The (Potentially) Habitable Planet Next Door p.10 Our closest star, Proxima Centauri, could have an Earth of its own. BY ERIC BETZ 3 A New Enemy Emerges p.12 The first large outbreak of Zika reveals its true impacts. BY LINDA MARSA 4 Oldest Human DNA Revises Our Family Tree p.14 Ancient genes uncover a turning point in human evolution. BY BRIDGET ALEX 5 Biologists Create Organism With Smallest Genome p.15 An artificial cell reveals the genes vital for life. BY JONATHON KEATS 6 The Pace — and Problems — of Climate Change p.16 Earth reached new and troubling milestones in 2016. BY ERIC BETZ 7 Can America Avoid Another Flint? p.18 The city's lead crisis points to a bigger water infrastructure problem. BY NATHANIEL SCHARPING 8 Looking for Planet Nine p.19 Yeah, Pluto got the planetary boot, but now a new “Ninth Planet” contender emerges. BY KOREY HAYNES 9 New Particle Flop Leaves Physicists Unsure p.20 Failure to find a new particle prompts some hard questions. BY NATHANIEL SCHARPING 10 Did Lucy Fall and Not Get Up? p.21 A new theory of how the famous hominin died reignites debates of how she lived. BY GEMMA TARLACH |
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2016-12-23 20:56:09, 26.84 M
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