An excess amount of artificial light that infringes on natural light is known as light pollution, and Pennsylvania seems to have a lot of it, as you’d be hard-pressed to notice more than a few stars ...

Photometers or light meters are radiometers that include a filter and photodiode and responds based on the average human eye: the CIE 1924 luminosity function V λ. However, the light sensitive diode ...

i-Luminosity has been a tastemaker in the LED Lighting industry for the past 10 years. In 2007, Murray Sarway (President & CEO) had a vision of bringing energy savings to commercial buildings. He ...

At 22:29 pm, April 5th, the luminosity of the Beijing Electron Positron Collider (BEPCII) reached 1×1033cm-2s-1, a new landmark in the performance of the BEPCII-- 100 times better than before it was ...

Imagine you are standing outside on a clear night, looking up at the sky. When you look at the night sky, some stars appear as faint dots, while others shine so brightly that they light up the ...

I keep trying to see this supernova in the Pinwheel Galaxy. The darn moon is just too bright. Ethan at Starts With a Bang suggests waiting a week or so. I will try that. But what I find really cool ...