source:corporateknightsFor generations, the topography of Sudbury, Ontario, has been brutally defined by towering slag heaps and vast orange-hued tailings ponds – the physical legacy of almost 140 years of nickel mining and smelting by resource giants like Inco and Falconbridge. By 1910, in fact, Sudbury’s mines were supplying 80% of the world’s nickel. But by the late 20th century, the industrial fallout – corrosive air pollution, acid rain and a legacy of seemingly intractable contamination – revealed the extraordinary environmental cost of those resource riches.Fast forward to April 2022, w...
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What do you get from mixing one kilogram of dry beech wood shavings, about 50g of organic full-grain spelt flour, 25g of fine plaster (CaSO4) dust as well as 500g of beech wood–based inoculum?A research team from Austria developed the mix to produce biodegradable printed circuit boards that can be used, in simple electronic devices. The group from the Johannes Kepler University (JKU) Linz put the mix into a flat plastic box and stored it in a dark cupboard. Within weeks, a tissue made of fungal fibres, a so-called mycelium, grew in the box with a paper-like, soft, white to brownish skin.The pr...
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2023
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source:autoevolutionMany companies want a piece of this. So Rice University scientists claim that their process Flash Joule Heating, invented in 2020, “can recover critical metals and recondition anodes in a far more environmentally and economically friendly manner.”Why do batteries die?It doesn’t matter that lithium-ion batteries are powering a smartphone or an EV. They eventually will reach end-of-life because their anodes are becoming useless. Anodes are made from several rare-earth elements, like manganese, nickel, or cobalt, which are combined in different ratios.Basically, charging and d...
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source:quantamagazineIn 2021, the Hayabusa2 space mission successfully delivered a morsel of the asteroid 162173 Ryugu to Earth — five grams of the oldest, most pristine matter left over from the solar system’s formation 4.5 billion years ago. Last spring, scientists revealed that the chemical composition of the asteroid includes 10 amino acids, the building blocks of proteins. The discovery added to the evidence that the primordial soup from which life on Earth arose may have been seasoned with amino acids from pieces of asteroids.But where did these amino acids come from? The amino acids flo...
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