New Medieval Books: Basics of Bloomery Iron Smelting - Medievalists.net
This manuscript is intended to fill the gap between 'the doer and the thinker', and so should be expected to be an overview, especially as applies to the fine details of current archaeology.
Data mining? Old servers could become new source of rare earths
Korean smelter Korea Zinc negotiates with US tech firms to extract rare earth elements from retired data center equipment, addressing supply chain vulnerabilities created by Chinese export controls.
This 'chemical sponge' sucks up the valuable minerals in polluted water
A supramolecular receptor-based, 3D-printed cartridge system selectively and cleanly extracts critical minerals from waste and wastewater with low energy and no toxic chemicals.