A quadrature encoder uses two output channels offset in phase to detect both direction and position with greater precision.

Scientists have developed a brain-computer interface that can capture and decode a person's inner monologue. The results could help people who are unable to speak communicate more easily with others.

Cats have a reputation for being aloof, mysterious, and hard to understand. But scientists say our feline friends are actually excellent communicators. From swishing tails to flattened ears, moggies ...