The absolute internal quantum efficiency (IQE) of indium gallium nitride (InGaN) based blue light-emitting diodes (LEDs) at low temperatures is often assumed to be 100%. However, a new study has found ...

The absolute internal quantum efficiency (IQE) of indium gallium nitride (InGaN) based blue light-emitting diodes (LEDs) at low temperatures is often assumed to be 100%. However, a new study from ...

Last week I completed my first self-supported, multi-stage, ultra-marathon “race” in Lapland, above the Arctic Circle. After more than 50 previous ultras, none of which have lasted more than a couple ...

WASHINGTON — By now we've all heard that the Pfizer COVID-19 vaccine has an efficacy rate of 95%, Moderna of 94%, and Johnson & Johnson about 66%; what you may not have known is that rate's technical ...

JACK July $105 Puts for $0.50 represent 11.6% return on notional and 110.6% return on margin for a low probability trade. $105 puts represent a -12.6% decline over a 15-day period. A -12.6% decline ...