16 dic 2010

A Determination of the Cloud Feedback from Climate Variations over the Past Decade

Estimates of Earth's climate sensitivity are uncertain, largely because of uncertainty in the long-term cloud feedback. I estimated the magnitude of the cloud feedback in response to short-term climate variations by analyzing the top-of-atmosphere radiation budget from March 2000 to February 2010. Over this period, the short-term cloud feedback had a magnitude of 0.54 ± 0.74 (2σ) watts per square meter per kelvin, meaning that it is likely positive. A small negative feedback is possible, but one large enough to cancel the climate’s positive feedbacks is not supported by these observations. Both long- and short-wave components of short-term cloud feedback are also likely positive. Calculations of short-term cloud feedback in climate models yield a similar feedback. I find no correlation in the models between the short- and long-term cloud feedbacks.
http://www.sciencemag.org/content/330/6010/1523.short
Information from:

30 nov 2010

Life on mars???

For the people that are looking for life on Mars, the red planet , we know that there are good times and bad times. Nearly 35 years after NASA’s twin Viking robots landed onto its ruddy surface, there is no 
     evidence that living organisms ever existed on the fourth planet from the sun.sun. Few researchers accept that the 1976 Viking experiment detected life. The brief frenzy over possible fossils in a Mars meteorite has fizzled.
 “In recent years the case has been made again and again that life is or was possible there.” Undergirding this new optimism are reams of data—from Earth-based telescopes as well as Mars orbiters, landers, and rovers—that have slowly painted a much more complete and complicated picture of the Mars environment stretching back billions of years, providing intriguing hints that microbes might have once evolved there, and might yet endure said Bruce Jackosky.

 published online November 23, 2010
The information above was written in the http://www.discoverymagazine.com/ page
LINK:http://discovermagazine.com/2010/jun/01-renewed-hope-for-life-on-red-planet

29 oct 2010

Amazing pupkin!!!!!!!!!!!

accessIt is a pupkin that it's wheight is nearly 1,811 pounds and it marked a Guinnes World Records . All giant pupkins are grown from a single strain , the atlantic giant seed, wich has a longer growing season than the normal pupkins . The fruits start out round, but once they get to about 220 pounds they begin to flatter in their own weight eventually resembling a giant theflated sack.

22 sept 2010

No Vaccines in the Time of Cholera

With millions of people homeless, clean drinking water in short supply, and the infrastructure in tatters, water-borne diseases are one of the biggest threats in the Pakistani regions ravaged by floods. Experts are particularly worried about cholera, a disease that can cause explosive and lethal outbreak.The Pakistani government has no plans for a mass vaccination campaign, and the World Health Organization does not advocate one. One key problem: The vaccine requires two doses, given 2 weeks apart, which is nearly impossible to do in a massive population on the move, experts say. aks.the internacional center for vaccine says that they can make a vacina yhat is oral and is not expensivePakistani government has no plans for a mass vaccination campaign, and the World Health Organization does not advocate one. One key problem: : The vaccine requires two doses, given 2 weeks apart, which is nearly impossible to do in a massive population on the move, experts say

27 ago 2010

VERY TINY VERY COOL...

1 The tittle is very tiny very cool and it was reported on agust 27th 2010

  2 Tiny fridges coild not be on hotel much longer a new study maked possibly to make a smaller fridge tthat has some particles and can cool up to zero it pushes the technology to the limit because they prove that they are smaller an still work.

3 Yes im interested about this article because these rafrigerators are potential and the are very small

4 That everything its possible and that you can make every thing you want if you really want to make it nothing is impossible

http://www.sciencenews.org/view/generic/id/62734/title/Very_tiny%2C_very_cool