Pairing lasers with microwaves makes mind-bogglingly accurate electronic clocks – a potential boon for GPS, cell phones and radar

Researchers have made some of the most accurate clocks imaginable in recent years, but the trick is harnessing those clocks to electronics. Using lasers to tune microwaves bridges the gap.

Franklyn Quinlan, Physicist, National Institute of Standards and Technology • conversation
May 22, 2020 ~7 min

Tags: physics astronomy dark-matter gravity laser gps cell-phones microwave black-holes metrology radar power-grid atomic-clocks frequency

Screens are keeping us connected now – but they're still disruptive to in-person communication

Research shows smartphone use disrupts an essential facet of human connection – eye contact.

Tracy Dennis-Tiwary, Professor of Psychology, Hunter College • conversation
April 15, 2020 ~6 min

Tags: human-evolution parents homo-sapiens parenting teamwork smartphones mobile-technology young-children cell-phones

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