(Phys.org)—Over the past few years, Li-air batteries (more precisely, Li-oxygen batteries) have become attractive due to their theoretical ability to store nearly as much energy per volume as gasoline. The key to this high ...
Often, when populations and economies boom, so does air pollution—a product of increased fossil-fuel consumption by vehicles, industry and households. This has been true across much of Africa, where air pollution recently ...
Earth Sciences
Feb 8, 2021
0
96
Stanford University scientists have developed an advanced zinc-air battery with higher catalytic activity and durability than similar batteries made with costly platinum and iridium catalysts. The results, published in the ...
Energy & Green Tech
May 29, 2013
11
0
Many owners of electric cars have wished for a battery pack that could power their vehicle for more than a thousand miles on a single charge. Researchers at the Illinois Institute of Technology (IIT) and U.S. Department of ...
Materials Science
Feb 23, 2023
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2569
When nature vanishes, people of color and low-income Americans disproportionally lose critical environmental and health benefits—including air quality, crop productivity and natural disease control—a new study in Nature ...
Social Sciences
Jun 10, 2021
2
16
Roofs and the downwind sides of buildings in street canyons have the lowest levels of particulate matter during a single-source pollution event, according to Penn State researchers. The findings have implications for improving ...
Environment
Feb 5, 2020
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64
Massey volcanologists have discovered the driving force behind superheated gas-and-ash clouds from volcanic eruptions, which may help save lives and infrastructure around the globe.
Earth Sciences
Apr 9, 2019
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9
Hummingbirds' ability to accelerate and turn diminishes at high altitudes, but it isn't a lack of oxygen to the body that limits the birds' performance—it's physics.
Plants & Animals
Dec 8, 2016
0
286
Yuan Yang, assistant professor of materials science and engineering at Columbia Engineering, has developed a new method to increase the energy density of lithium (Li-ion) batteries. He has built a trilayer structure that ...
Nanophysics
Oct 24, 2016
1
658
From the vantage point of the International Space Station, astronauts frequently observe atmospheric and surface phenomena in ways that are impossible to view from the ground. Two such phenomena—gravity waves and sunglint—are ...
Earth Sciences
Jul 23, 2013
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