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Latest light sources Stories

eclipse_maximum
2014-10-27 03:00:56

The moon passed between the Earth and the sun on Thursday, Oct. 23. While avid stargazers in North America looked up to watch the spectacle, the best vantage point was several hundred miles above the North Pole.

2014-10-23 23:05:27

Larson Electronics unveils a new green 100 watt halogen handheld spotlight just in time for hunting season.

2014-10-23 08:39:17

PLYMOUTH, Mich. and HAMBURG, Germany, Oct. 23, 2014 /PRNewswire/ -- ROFIN-SINAR Technologies Inc.

2014-10-22 08:39:58

New TCP LEDs offer 25,000 hours of life, high light output, and are ENERGY STAR® rated AURORA, Ohio, Oct.

coronal mass ejection
2014-10-17 11:00:02

NASA's IRIS mission has provided scientists with five new findings into how the sun’s atmosphere, or corona, is heated far hotter than its surface, what causes the sun’s constant outflow of particles called the solar wind, and what mechanisms accelerate particles that power solar flares.

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


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...

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Word of the Day
whirret
  • To give a box on the ear to.
The word 'whirret' may be onomatopoeic.