According to quantum theory, communication systems based on single-photon signals, where two parties share random secret keys known only to them, could provide unbreakable encryption. However, ...

Reflexology is a type of massage that involves applying different amounts of pressure to the feet, hands, and ears. It may provide pain and stress relief, among other benefits. Reflexology is based on ...

You probably have a few water bottles stashed for an emergency, but if you rely on sensitive medical gear such as a CPAP machine, that isn't going to work. In a disaster scenario, finding a gallon of ...