April 25, 2010

NEW SUPER EARTH

LKon for all

GJ1214 exoplanet New Super Earth Discovered, Likely to Have Water

ESO/L. Calçada

In the unending search for another pile of floating rock as stocked with intriguing features as our very own earth, a Super Earth has been sighted 40 light years away. The new planet is suspected of housing water and it’s close enough that astronomers will be able to observe its atmospheric properties.

The find was made by the MEarth project, an Arizona undertaking that replaces the high-tech hardware often associated with space observation in favor of a team of small, independently adjustable telescopes pointed at a collection of M-dwarf stars.

The MEarth team was able to locate the planet due to shifting luminosity of one of the M-dwarfs and then notified another observation team at HARPS project, which was able to hone in on the planet and provide an estimate of its mass–6.55 times that of Earth. More importantly, the estimate of density indicates that the planet is less than half as dense as Earth, suggesting the presence of water

HAVE A GOOD TIME WITH NEW EARTH

April 22, 2010

LEVI's Fouinder

Jacob Davis decided to patent the metal rivets idea.  He approached Levi Strauss and suggested they hold the patent together.  Strauss agreed, and the two men were awarded the patent on May 20, 1873.  This date is today considered the official “birthday” of blue jeans.

For almost 20 years, Strauss and Davis were the only ones allowed to make riveted clothing until the patent entered the public domain.  The two horse design first appeared in 1886.  In 1890, the pants were assigned the number 501.  Once the patent expired, other companies started making these riveted denim jeans.  In 1936, the red tab attached to the right rear pocket was introduced as a way to identify Levi’s jeans at a distance.

In the 1940s, jeans were worn by workers, especially in the factories.  Blue jeans became popular in the 1950s as a symbol of protest against conformity.  In the mid-1950s, Donald Freeland of the Great Western Garment Company introduced the technique of stone-washing denim.  In the 1960s, blue jeans became widely accepted, especially among the younger generation.  Their popularity continued into the 1970s, 1980s, and 1990s, and it continues today.