(PhysOrg.com) -- Water scarcity is a major problem for people living in desert areas, including much of the Middle East and Africa. According to the United Nations, more than 1.6 million people die every year due to lack ...
At first, figuring out how pebble-sized rocks organize themselves in evenly-spaced patterns in sand seemed simple and even intuitive. But once Andrew Leier, an assistant geoscience professor at the U of C, started observing, ...
Space Exploration
Jan 7, 2009
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When we take a stroll on the beach, we walk on the sand without any trouble. The sand appears solid and is difficult to compress. When we put the same sand grains in an hourglass, they behave very differently: the sand flows ...
General Physics
Apr 3, 2024
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2
Sand ripples are fascinating. They are symmetrical, yet wind, which causes them, is very much not. Furthermore, they can be found on Mars and on Earth. It would be even more fascinating if the same effect found on Mars could ...
Planetary Sciences
Mar 12, 2024
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84
Scientists from Tokyo Metropolitan University have been studying the strength and toughness of sand columns made of a mixture of sticky and non-sticky grains. They have uncovered the mechanism behind how the strength changes ...
Analytical Chemistry
Jan 29, 2024
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1
An international team of chemical and environmental engineers has found that oil sands operations in Canada are emitting significantly more pollutants into the air than previously thought. In their study, reported in the ...
Of all the organisms that photosynthesize, land plants have the most complex bodies. How did this morphology emerge? A team of scientists led by the University of Göttingen has taken a deep dive into the evolutionary history ...
Plants & Animals
Jan 23, 2024
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102
Some unexpected shark strandings and subsequent surprises following autopsies have ironically taken marine biologists millions of years back in time as they look to the future with concern. Adding chapters to an evolutionary ...
Plants & Animals
Nov 7, 2023
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158
New research confirms that fossil human footprints in New Mexico are likely the oldest direct evidence of human presence in the Americas, a finding that upends what many archaeologists thought they knew about when our ancestors ...
Archaeology
Oct 5, 2023
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215
Microplastics impact how sand travels along riverbeds, suggesting microplastics could increase riverbed erosion, according to an international team of researchers. Roberto Fernández, an assistant professor in the Department ...
Environment
Sep 1, 2023
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