Soil is often perceived simply as "dirt," but in reality, it is a dynamic, living system that acts as Earth's natural sponge.

Titan Enterprises reports on how optical flow sensor technology has solved a high-tech problem - monitoring the flow of coolant to the world's most sensitive astronomical camera. The world’s largest ...

The first seismograph was built by Zhang Heng nearly two millennia ago, in the days of the Han Dynasty. It could indicate the general direction of an earthquake’s epicenter by dropping a bronze ball ...

Figure 1a shows a slotted optical switch. An LED is mounted in a plastic housing, facing a phototransistor, but separated by a gap. If something moves into the gap, it blocks the light path between ...