science

Device transmits radio waves with almost no power – without violating the laws of physics

Academics - School Education Chalk Board Science Graph Chart - iStock - Minerva Studio

A new ultra-low-power method of communication at first glance seems to violate the laws of physics. It is possible to wirelessly transmit information simply by opening and closing a switch that connects a resistor to an antenna. No need to send power to the antenna.

Sitting all day is terrible for your health – now, a new study finds a relatively easy way to counteract it

PROMO Health - Fitness Exercise Workout Plan - iStock - Andreypopov

To reduce the harmful health effects of sitting, take a five-minute light walk every half-hour. That's the key finding of a new study that my colleagues and I published in the journal Medicine & Science in Sports & Exercise.