Abstract: A discontinuous Galerkin time-domain scheme is formulated and implemented to analyze three-dimensional transient lasing dynamics. The proposed scheme solves a coupled system of the Maxwell ...

Abstract: We summarize the development of microfabricated atomic frequency references at NIST. The physics packages of these devices have volumes near 10 mm/sup 3/ and power dissipation below 150 mW, ...

BOULDER, Colo. — A new cesium fountain atomic clock at the National Institute of Standards and Technology (NIST) in Boulder is making time more accurate by fractions of a second. It took a team of ...

Since 1960, there'd been a lot of progress made on measuring time accurately with atomic ... universal physical constant, the speed of light, redefined the metre. Photo shows Lasers shining on a ...

A new atomic clock is ... Metrologia evaluating the clock’s accuracy, researchers say the clock is accurate enough to help calibrate coordinated universal time (UTC). It took months to assess ...

"Most people can tell the time and use calendars from an early age. Our findings highlight a significant gap in the ability of AI to carry out what are quite basic skills for people," study lead ...

EXCLUSIVE: Emmy-winning actor-filmmaker Jay Duplass (Dying for Sex) is set to star opposite Jessica Chastain in Rob Savage‘s new film for Universal ... being produced by Atomic Monster/Blumhouse ...

The launch takes place at 0000 UTC (Coordinated Universal Time) and 1200 UTC. This corresponds to 5.30 AM and 5.30 PM Indian Standard Time (IST). The balloons are launched at the same time so that ...

James Nolan Jr., who is the grandson of a doctor involved in the development of atomic bombs and who coordinated the bell ... at 11:02 a.m. on August 9 -- the time the bomb exploded 80 years ...

a celestial equivalent of Coordinated Universal Time (UTC), which is used to regulate clocks and time on Earth and (at present) in space too. NASA and other space agencies currently employ a range of ...

The Trump White House failed to produce any National Security Strategy in 2018, 2019, or 2020, and the 2018 National Defense Strategy report, which replaced the Quadrennial Defense Assessments, for ...

And it also gives this year's AdventHealth 400 an extremely tough act to follow ... putting the three-time and defending Cup champion back on the playoff grid. When: Sunday, May 11 at 3 p.m ...