Deep sea and sediments bring iron to Antarctic waters. The iron that fertilizes the waters around Antarctica mostly comes from the deep, upwelling waters and the sediments around the continent.
Earth Sciences
23 hours ago
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34
Three physicists have taken a new look at the circumstances surrounding the mysterious Chinguetti meteorite and developed a means for confirming whether it exists or not. In their paper posted to the arXiv preprint server, ...
Recycling facilities collect glass and mercury from thrown-away fluorescent bulbs, but discarded lighting could also supply rare-earth metals for reuse. The 17 metals referred to as rare earths aren't all widely available ...
Materials Science
Feb 29, 2024
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Iron is a micronutrient for plants. Biologists from the Institute of Botany at Heinrich Heine University Düsseldorf (HHU) describe in a study, which has now been published in the Journal of Cell Biology, that regulatory ...
Molecular & Computational biology
Feb 23, 2024
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Oxidative functionalization of hydrophobic compounds is an important research area from the perspective of effective utilization of natural resources and treatment and reuse of hazardous substances. However, a method that ...
Analytical Chemistry
Feb 19, 2024
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57
Typically, researchers attempting to synthesize specifically targeted particles of materials have had to rely on intuition or trial-and-error methods. This approach can be inefficient, requiring significant time and resource ...
Nanomaterials
Feb 12, 2024
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1
Few gemstones are more difficult to find than diamonds. Geologists from ETH Zurich and the University of Melbourne have now established a link between their occurrence and the mineral olivine. This could make the search for ...
Earth Sciences
Feb 8, 2024
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141
The production of aluminum generates around 180 million tons of toxic red mud every year. Scientists at the Max-Planck-Institut für Eisenforschung, a center for iron research, have now shown how green steel can be produced ...
Analytical Chemistry
Feb 5, 2024
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48
The development of new antibiotics has stalled—new strategies are needed as the world enters the age of antibiotic resistance. To combat this challenge, Lawrence Livermore National Laboratory (LLNL) scientists have found ...
Cell & Microbiology
Jan 30, 2024
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37
From a spin state perspective, metal complex catalysts are classified into two types: closed-shell catalysts (lacking unpaired electrons, typically based on noble metals like palladium) and open-shell catalysts (with unpaired ...
Analytical Chemistry
Jan 12, 2024
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Iron (pronounced /ˈаɪ.ərn/) is a chemical element with the symbol Fe (Latin: ferrum) and atomic number 26. Iron is a group 8 and period 4 element. Iron and iron alloys (steels) are by far the most common metals and the most common ferromagnetic materials in everyday use. Fresh iron surfaces are lustrous and silvery-grey in colour, but oxidise in air to form a red or brown coating of ferrous oxide or rust. Pure single crystals of iron are soft (softer than aluminium), and the addition of minute amounts of impurities, such as carbon, significantly strengthens them. Alloying iron with appropriate small amounts (up to a few per cent) of other metals and carbon produces steel, which can be 1,000 times harder than pure iron.
Iron-56 is the heaviest stable isotope produced by the alpha process in stellar nucleosynthesis; heavier elements than iron and nickel require a supernova for their formation. Iron is the most abundant element in the core of red giants, and is the most abundant metal in iron meteorites and in the dense metal cores of planets such as Earth.
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