A clump of grass grows on an outcrop of shale 33,000 years ago. An ostrich pecks at the grass, and atoms taken up from the shale and into the grass become part of the eggshell the ostrich lays.
Archaeology
Mar 9, 2020
0
861
Solar-powered technology, such as photovoltaics (PVs), could address some of the environmental challenges of our times, enabling the sustainable production of electrical energy in many geographical areas, including arid or ...
An international research team led by scientists from McMaster University has unearthed new evidence in Greece proving that the island of Naxos was inhabited by Neanderthals and earlier humans at least 200,000 years ago, ...
Archaeology
Oct 16, 2019
9
2298
Upside-down "rivers" of warm ocean water are eroding the fractured edges of thick, floating Antarctic ice shelves from below, helping to create conditions that lead to ice-shelf breakup and sea-level rise, according to a ...
Earth Sciences
Oct 9, 2019
19
1162
Proponents of clean energy will soon have a new source to add to their existing array of solar, wind, and hydropower: osmotic power. Or more specifically, energy generated by a natural phenomenon occurring when fresh water ...
Nanophysics
Jul 13, 2016
53
4918
(Phys.org) —A team of researchers with members from France, the U.S. and Australia, has found that the yellow-bellied sea snake (Hydrophis platurus) is able to survive out in the ocean because its ability to survive severe ...
Over the last few years, the use of nanomaterials for water treatment, food packaging, pesticides, cosmetics and other industries has increased. For example, farmers have used silver nanoparticles as a pesticide because of ...
Bio & Medicine
Aug 22, 2013
8
1
For more than 30 years, climate scientists have debated whether flood waters from melting of the enormous Laurentide Ice Sheet, which ushered in the last major cold episode on Earth about 12,900 years ago, flowed northwest ...
Earth Sciences
Nov 5, 2012
6
1
An analysis of a decade's worth of tropical cyclones shows that when hurricanes blow over ocean regions swamped by fresh water, the conditions can unexpectedly intensify the storm. Although the probability that hurricanes ...
Earth Sciences
Aug 13, 2012
0
0
Production of energy from the difference between salt water and fresh water is most convenient near the oceans, but now, using an ammonium bicarbonate salt solution, Penn State researchers can combine bacterial degradation ...
Energy & Green Tech
Mar 1, 2012
2
0
