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Latest light sources Stories

2015-02-24 16:23:50

HOUSTON, Feb.

2015-02-12 12:33:56

DALLAS, February 12, 2015 /PRNewswire/ -- The Global Lighting Product Market to 2019 - Market Size, Growth, and Forecasts in Nearly 70 Countries research report available

nebula henize 2-428
2015-02-09 12:19:46

Astronomers using ESO facilities in combination with telescopes in the Canary Islands have identified two surprisingly massive stars at the heart of the planetary nebula Henize 2-428. As they orbit each other, the two stars are expected to slowly get closer and closer, and when they merge, about 700 million years from now, they will contain enough material to ignite a vast supernova explosion.

2015-02-04 12:29:42

PLYMOUTH, Mich. and HAMBURG, Germany, Feb. 4, 2015 /PRNewswire/ -- ROFIN-SINAR Technologies Inc.

2015-02-04 08:38:06

PORTLAND, Oregon, February 4, 2015 /PRNewswire/ -- Research Beam adds a report titled "Lighting Product Markets in the World to 2019 - Market Size, Trends, and Forecasts"

2015-01-22 23:08:32

Researchmoz added a new market research report on the global LED lighting market to its huge database. Albnay, NewYork (PRWEB) January 22, 2015 The report

2015-01-22 12:30:06

PLYMOUTH, Mich. and HAMBURG, Germany, Jan. 22, 2015 /PRNewswire/ -- ROFIN-SINAR Technologies Inc.

2015-01-20 23:07:59

Point of sale displays including free standing displays, end caps, counter top displays and aisle violators can be created in very thin lighted displays for maximum visual impact.

2015-01-09 12:25:41

PLYMOUTH, Mich. and HAMBURG, Germany, Jan. 9, 2015 /PRNewswire/ -- ROFIN-SINAR Technologies Inc.

2015-01-02 23:01:38

Leading manufacturer and supplier of explosion proof lighting equipment Larson Electronics has announced the release of a new pedestal mount LED light designed for high output and versatile operation.


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
marcescent
  • Withering but not falling off, as a blossom that persists on a twig after flowering.
The word 'marcescent' comes from a Latin word meaning 'to wither'.
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