科学与环境

A 2-in-1 approach captures toxic metals and recovers rare earth elements from wastewater

来源: Phys.org - latest science and technology news stories · 发布于

A 2-in-1 approach captures toxic metals and recovers rare earth elements from wastewater
来源: Phys.org - latest science and technology news stories

We generally throw away a broken camera lens, earphones or an old phone that has stopped working and is beyond repair because they seem useless when they no longer function. However, these objects contain rare earth elements (REEs) that have applications in magnets, superconducti

We generally throw away a broken camera lens, earphones or an old phone that has stopped working and is beyond repair because they seem useless when they no longer function. However, these objects contain rare earth elements (REEs) that have applications in magnets, superconductivity, optics and batteries, among others. When these objects end up in water, recovering REEs becomes difficult.

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科学与环境

A meteor hit Oklahoma 100 million years later than scientists thought

A meteor crater buried beneath Oklahoma has turned out to be nearly 100 million years younger than scientists thought. Zircon crystals show the Ames impact occurred about 370 million years ago, meaning it was not part of the mysterious Ordovician bombardment once linked to a poss

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科学与环境

ESA’s Juice just used Earth as a slingshot to Jupiter

ESA’s Juice spacecraft raced past Earth on September 28, using our planet’s gravity to dramatically reshape its path toward Jupiter without burning much fuel. The flyby changed its direction by 20 degrees and increased its speed by 3.5 km/s, while also giving scientists a rare ch

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