搜索结果: 1-13 共查到“理学 Ancient”相关记录13条 . 查询时间(0.23 秒)
Like ancient mariners, ancestors of Prochlorococcus microbes rode out to sea on exoskeleton particles（图）
原绿球菌 微生物 外骨骼颗粒 浮游植物 几丁质颗粒
2023/6/21
Throughout the ocean, billions upon billions of plant-like microbes make up an invisible floating forest. As they drift, the tiny organisms use sunlight to suck up carbon dioxide from the atmosphere. ...
Swirling around the planet’s equator, the rings of Saturn are a dead giveaway that the planet is spinning at a tilt. The belted giant rotates at a 26.7-degree angle relative to the plane in which it o...
On the evening of Dec. 12, 2021, Cornell astronomers Gordon Stacey and Thomas Nikola were dangerously short on time. They’d been awake for nearly 24 hours, with another all-nighter ahead of them.
Comet 67P/Churyomov-Gerasimenko – arguably the most-studied comet in history – has yielded a cosmic surprise: It emits molecular oxygen drawn from its nucleus.
May 16, 2007，"As hangs the flexible line, so but inverted will stand the rigid arch." This dictum on structural forces, formulated by Robert Hooke in 1675, remains the basis for understanding both sus...
4-May-2007，BELLINGHAM, Wash. -- Pacific Northwest National Laboratory geologists have put out a call for teeth tusks, femurs and any and all other parts of extinct mammoths left by massive Ice Age flo...
Scientists Confirm Link between Volcanic Activity and Ancient Warming Event（图）
volcanic activity Ancient Warming Event
2007/4/27
26 April 2007，Scientists suggest gasses released during heavy volcanic activity may have triggered the Paleocene-Eocene thermal maximum, a period of climate change marked by a rise in global temperatu...
Ancient Malindi coral reef tells story of soil erosion in Kenya（图）
Coral reefs soil erosion
2007/4/19
April 11, 2007，Coral reefs, like tree rings, are natural archives of climate change. But oceanic corals also provide a faithful account of how people make use of land through history, says Robert B. D...
Ancient T. rex and Mastodon Protein Fragments Discovered, Sequenced（图）
protein fossil bones
2007/4/16
April 12, 2007，Scientists have confirmed the existence of protein in soft tissue recovered from the fossil bones of a 68 million-year-old Tyrannosaurus rex (T. rex) and a half-million-year-old mastodo...
14 February 2007，A University of Queensland researcher is going back 50 million years to get a glimpse of what a future greenhouse climate might be like.
8 February 2007，We may not be as fit as the people of ancient Athens, despite all that modern diet and training can provide, according to research by University of Leeds exercise physiologist, Dr Harr...
In Arctic Alaska, the Warming Climate Threatens an Ancient Culture（图）
Arctic Warming Climate Ancient Culture
2006/12/15
SHISHMAREF, Alaska—Over the past 10 years, while much of the United States has debated the potential threat of global climate change, nearly 600 residents of this remote island village have seen its e...
Ancient calculator was 1,000 yrs ahead of its time
astronomi calcalculatormade X-ray tomography
2006/12/1
November 29, 2006，An ancient astronomical calculatormade at the end of the 2nd century BC was amazingly accurate and more complex than any instrument for thenext 1,000 years, scientists said on Wednes...