An electronic tachometer is a straightforward enough device, in which the light reflections from a white spot on a rotating object are detected and counted over time, measuring the revolutions per ...

When a skater pulls their arms close to their body, they spin faster. Similarly, the Earth's rotation speed can change based ...

5. Aral’s Drying Human activity can sometimes speed up Earth’s rotation. The drying of the Aral Sea, which lost much of its water since the 1960s, increased Earth’s rotational speed over ...

Diodes Incorporated has introduced its first series of advanced InSb Hall element sensors for rotation speed detection and current measurement in consumer applications such as laptops, mobile phones, ...