Quantcast

Latest light sources Stories

2014-10-15 23:03:57

LED lighting company, Solid Apollo LED, introduces range of slim modern LED light bars for easy mounting and energy savings Seattle, WA (PRWEB) October 15, 2014

2014-10-09 23:06:05

Leading manufacturer and distributor of industrial lighting Larson Electronics announces the release of a new low profile LED wall pack light with an optional red, blue, green, amber, purple,

2014-10-08 23:06:28

Larson Electronics has developed a new 18 watt LED tube lamp that is an excellent choice for upgrading existing T8 fluorescent lamp fixtures as well as a direct replacement for our own LED light

2014-10-06 23:04:32

With over 40 years as a leader in the industrial and commercial lighting industry, Larson Electronics continues its commitment to providing high grade lighting equipment to specialty markets with

flare up
2014-10-03 04:00:06

A snaking, extended filament of solar material currently lies on the front of the sun -- some 1 million miles across from end to end.

2014-10-01 08:24:14

Brought to you in 4W, 6W, and 8W versions equivalent to 40W, 60W, and 75W incandescent bulbs respectively.

red dwarf superflare
2014-10-01 04:38:31

The strongest, hottest and longest-lasting sequence of stellar flares ever seen from a nearby red dwarf star was detected by NASA's Swift satellite on April 23.

interior of a supermassive star
2014-09-30 10:24:04

Certain primordial stars—those between 55,000 and 56,000 times the mass of our Sun, or solar masses—may have died unusually. In death, these objects—among the Universe’s first-generation of stars—would have exploded as supernovae and burned completely, leaving no remnant black hole behind.

2014-09-29 23:07:21

Longtime leader in commercial and industrial grade lighting equipment Larson Electronics continues its commitment to providing high grade lighting equipment to specialty markets with the release


Latest light sources Reference Libraries

Stellar Astrophysics
2014-01-12 00:00:00

The prominent feature that allows for the existence of life on Earth is the Sun. Radiation from our closest star provides heat and energy to our planet, driving biological processes and providing the necessary conditions for liquid water to naturally exist. But our Sun is only but one star in this vast Universe. And as it turns out, most stars are quite different than the one that illuminates our day. For this reason, scientists have, for hundreds of years, attempted to study the other...

Supernova
2004-10-19 04:45:42

Supernova -- A supernova is a star that increases its brightness drastically within a matter of days, making it appear as if a "new" star was born (hence "nova"). The "super" prefix distinguishes it from a mere nova, which also involves a star increasing in brightness, though to a lesser extent and through a much different mechanism. Astronomers have classified supernovae in several classes, according to the lines of different elements that appear in their spectra. The first element...

4_a9775d2328a386c7976f6f9895c6d2ac2
2004-10-19 04:45:40

The Sun -- intensely hot, self-luminous body of gases at the center of the solar system. Its gravitational attraction maintains the planets, comets, and other bodies of the solar system in their orbits. The sun is actually a star of about medium size; it appears larger than the other stars because of its relative nearness to the earth. The earth's distance from the sun varies from 91,377,000 mi (147,053,000 km) at perihelion to 94,537,000 mi (152,138,000 km) at aphelion (see apsis). The...

3_5b8f828cdf6b44752884e721c0a2e6bd2
2004-10-19 04:45:40

Crab Nebula -- The Crab Nebula (Messier 1, NGC 1952) is the object the which started Charles Messier logging non-cometary objects on his Messier Catalog. It is the expanding cloud of gas thrown off in the explosion that gave rise to the 1054 supernova recorded by Chinese astronomers, now more than 6 light years across (the nebula is currently expanding at 1000 km/sec and the total mass of ejected material is about 0.1 solar masses). The supernova which produced it was bright enough to...

More Articles (4 articles) »
Word of the Day
obdormition
  • Sleep; the state or condition of being asleep.
  • The state or condition of numbness of a part due to pressure on a nerve: as, the obdormition of a limb.
The word 'obdormition' comes from a Latin word meaning "to fall asleep".
Related