Rydberg atoms detect clear signals from a handheld radio

For the first time, a team of US researchers has used sensors containing highly excited Rydberg atoms to detect signals from an ordinary handheld radio. Through a careful approach to demodulating the ...
eCoustics

FiiO BTR17 Review: High End DAC Chips, Balanced Output, and Deep EQ in Your Pocket?

Can the $199 FiiO BTR17 still compete in 2026? With dual ESS DACs, THX power, and LDAC support, this pocket DAC/amp aims ...

DopFone app can accurately track fetal heart rate using only a smartphone

Heart rate is an important sign of fetal health, yet few technologies exist to easily and inexpensively track fetal heart rates outside of doctors' offices. This can create risks for pregnancies in ...