Posted: 11 Apr 2009 06:34 AM PDT
(10 votes - 0 comments - 103 views)
Hemoglobin is the iron-containing oxygen-transport metalloprotein in the red blood cells of vertebrates
The protein makes up about 97% of the red blood cell's dry content, and around 35% of the total content (including water). Hemoglobin transports oxygen from the lungs or gills to the rest of the body where it releases the oxygen for cell use. It also has a variety of other roles of gas transport and effect-modulation which vary from species to species.
Posted: 11 Apr 2009 06:10 AM PDT
Archaeologists digging in the ruins of the Canaanite city-state Beth-Shemesh last summer found a decorated plaque with what could be the first known depiction of a ruler known as the "Mistress of the Lionesses".
Posted: 11 Apr 2009 06:06 AM PDT
Posted: 11 Apr 2009 03:25 AM PDT
Posted: 11 Apr 2009 12:37 AM PDT
Posted: 10 Apr 2009 10:10 PM PDT
Bending lightning around tall buildings and away from airports, power plants and other facilities is just one application for curved laser beams, says Jerome Moloney at the University of Arizona, Tuscon. He and his colleagues have now made the first such beams.
Posted: 10 Apr 2009 08:40 PM PDT
A cache of 70,000 beads from all over the 17th-century world have been unearthed from Saint Catherines Island, Georgia, a stop along a Spanish trade route between China and the Philippine capital of Manila.The beads reflect a startling array of shapes, colors, sizes, and materials, hinting at the wide reach of the Spanish Empire in the 17th century
Posted: 10 Apr 2009 08:37 PM PDT
(10 votes - 2 comments - 106 views)
I want one!
PS. Watch it in HQ, it is much clearer on the facial expressions.
Posted: 10 Apr 2009 07:40 PM PDT
On this Tuesday's Colbert Report, the wait will finally end when a NASA astronaut announces the name of the Node 3 space module.
Posted: 10 Apr 2009 06:00 PM PDT
A team led by an Indiana University astronomer has found a sample of massive galaxies with properties that suggest that they may have formed relatively recently. This would run counter to the widely-held belief that massive, luminous galaxies (like our own Milky Way Galaxy) began their formation and evolution shortly after the Big Bang.
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