Below-cloud evaporation is the evaporation of raindrops under unsaturated water vapor pressure and from cloud base to the ground during precipitation, leading to variability in the ratio of stable isotopes in rainfall. It ...
Earth Sciences
Aug 30, 2023
0
1
The word "fractals" might inspire images of psychedelic colors spiraling into infinity in a computer animation. An invisible, but powerful and useful, version of this phenomenon exists in the realm of dynamic magnetic fractal ...
Condensed Matter
Aug 28, 2023
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261
Scandium radioisotopes are potentially useful for medical imaging such as positron emission tomography (PET) scans. However, health care providers do not currently use these isotopes to image cancer because they are difficult ...
Materials Science
Aug 14, 2023
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1
Otodus megalodon, the biggest shark of all time, has long captured the imaginations of paleontologists and the public alike. Scientific fascination spawns from the sheer enormity of their fossilized teeth. As big as human ...
Plants & Animals
Aug 2, 2023
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8
Carbon dioxide levels in Earth's atmosphere—and, consequently, ocean temperatures—are rising. How high and how fast ocean temperatures can rise can be learned from temperature measurements of ancient oceans. At the same ...
Earth Sciences
Aug 1, 2023
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14
Researchers have shown from stable isotope ratios in the baleen of pygmy right whales that this species of baleen whales remains in waters off southern Australia year-round and feeds on Australian krill and copepods. Unlike ...
Plants & Animals
Jul 31, 2023
0
133
The Amazon River is the largest river in the world. It discharges about one fifth of global freshwater runoff, resulting in a freshwater plume rich in nutrients and trace elements entering the Atlantic Ocean.
Earth Sciences
Jul 31, 2023
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0
High up in the Himalayas, scientists at the Indian Institute of Science (IISc) and Niigata University, Japan, have discovered droplets of water trapped in mineral deposits that were likely left behind from an ancient ocean ...
Earth Sciences
Jul 27, 2023
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357
Earth is truly unique among our solar system's planets. It has vast water oceans and abundant life. But Earth is also unique because it is the only planet with plate tectonics, which shaped its geology, climate and possibly ...
Earth Sciences
Jul 26, 2023
2
896
The Neolithic lifestyle, based on farming instead of hunting and gathering, emerged in the Near East around 12,000 years ago and contributed profoundly to the modern way of life. The ability to produce and store extra food ...
Archaeology
Jul 26, 2023
0
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