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Articles on GPS

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Mating laser-driven atomic clocks like the one shown here with microwaves promises more accurate electronic devices. N. Phillips/NIST

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.
The orientations of the stone walls that crisscross the Northeastern U.S. can tell a geomagnetic tale as well as a historical one. John Delano

Old stone walls record the changing location of magnetic north

Scientific inspiration struck a geologist after many walks through the woods in New York and New England. These ruins hold the secret of where the compass pointed north when they were built centuries ago.
Safety cards that allow victims to press a button to alert a 24/7 call centre have proved successful in protecting victims from further abuse. Mavis Wong/The Conversation NY-BD-CC

Technology is both a weapon and a shield for those experiencing domestic violence

We shouldn’t be telling victims of domestic violence to stop using technology. We should encourage them to use their digital devices to share their stories and seek the help they deserve.

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