Rotary encoders connect to a shaft and, as the shaft rotates, the encoder outputs pulses. These are used to determine the speed of the object. By counting the amount of pulses per one full turn of the ...

Here is your 2026 hard rock + metal album release calendar and all of this week's newest albums! Each week is loaded with new rock and metal releases and keeping track of it all can be pretty ...

Metal exchange-traded funds (ETFs) are investment funds that hold shares of metal mining companies or invest in metal futures contracts. Metals are the crucial raw materials behind infrastructure, ...

Revered for its strength and white pigment, titanium is valued by many industries, and demand for the metal is expected to rise. Lithium is used in electric vehicles and energy storage batteries. Here ...

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Click above to browse castaways, from 1942 to today. Or use the BBC search to find a castaway. To search, type ‘Desert Island Discs’ plus the castaway’s name.