Deep seabed mining plans pit renewable energy demand against ocean life in a largely unexplored frontier source:themandarinAs companies race to expand renewable energy and the batteries to store it, finding sufficient amounts of rare earth metals to build the technology is no easy feat. That’s leading mining companies to take a closer look at a largely unexplored frontier — the deep ocean seabed.A wealth of these metals can be found in manganese nodules that look like cobblestones scattered across wide areas of deep ocean seabed. But the fragile ecosystems deep in the oceans are little un...
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2023
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source:natureHafnium isn’t a particularly remarkable element. It’s not your explosive sodium, shimmering mercury or stinky sulfur. It’s a greyish metal and is commonly used as a neutron absorber in the control rods of nuclear power plants and nuclear submarines, and as an insulator in computer chips. But hafnium’s discovery, which was reported in Nature a century ago this week1, was of disproportionate importance. The element was identified by two scientists working in Copenhagen: Dutch physicist Dirk Coster and Hungarian chemist Georg von Hevesy. The find secured not only the periodic table’s...
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2023
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source:mydrollIt’s “lights out” for antibiotic-resistant superbugs as next-generation light-activated nanotech proves it can eradicate some of the most notorious and potentially deadly bacteria in the world.Developed by the University of South Australia and published in Pharmaceutics, the new light therapy can eliminate antibiotic-resistant superbugs golden staph and Pseudomonas aeruginosa by 500,000-fold and 100,000-fold respectively.Golden staph (staphylococcus aureus) and Pseudomonas aeruginosa are among the most deadly superbugs in the world. Globally, about 1.27 million people die as a re...
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2023
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source:lva.lenovoBasalt is a type of volcanic rock that is formed when lava with a high content of mafic minerals (such as pyroxene and olivine) cools and solidifies. Basalt lava eruptions occur when this molten rock is erupted from a volcano and comes into contact with the Earth’s surface. These eruptions can be explosive, producing ash and tephra, or they can be more effusive, flowing slowly and steadily over long periods of time. Basalt lava is typically more fluid than other types of lava, which allows it to flow easily and cover large areas.n the past, massive magma eruptions have led to ...
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2023
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