Bench-scale testwork produces marketable tantalite concentrate from the CV5 Pegmatite's dense media separation ("DMS") waste stream fractions, at favorable grade and strong recovery. 8.7% Ta 2 O 5 at ...

Perpetual motion devices are either a gag, a scam, or as in the case of this particular toy that [Big Clive] bought on AliExpress, a rather fascinating demonstration of a contact-free inductive ...

Innovation begins with the first prototype and ends only when capability is delivered reliably, repeatedly, and at the ...

They’re inexpensive and easy to use, and they help keep you safe when doing DIY electrical work. Solution: Test. Use. Verify. First, test the tester by holding it to a known live circuit, like a ...