IronAISS writes: Wow! defenetly NASA is working hard in the problem of going to Mars, now things seem to get much more complex, not only the budget isn't enough to think cutting the projects to send astronauts to Mars, but the insidious threat of space radiation in the form of galactic cosmic rays could keep astronauts confined much closer to home. According to Newscietist article things isn't going to get much more easy.
IronAISS writes: The second law of thermodynamics forbids a decrease in entropy of an isolated system. However, in statistical mechanics this strict prohibition is softened to a probabilistic statement, which allows transient decreases in entropy to occur with a small probability. The likelihood of such fluctuations is vanishingly small in macroscopic bodies, but in smaller systems, such as a stretched DNA molecule, they can actually be observed.
IronAISS writes: WITH the Large Hadron Collider still in the repair shop, the race to find the Higgs boson has become a lot tighter, thanks to the older and less powerful — but working — Tevatron collider near Chicago.
"The Tevatron definitely has a chance," says Greg Landsberg of Brown University in Providence, Rhode Island, who works on one of the LHC's detectors.
With the LHC due to restart only in November at CERN near Geneva, Switzerland, the Tevatron has been gaining ground in the search for the Higgs, the particle thought to give mass to other elementary particles. At last week'sLepton Photon conference in Hamburg, Germany, Tevatron physicists said that by early 2011 they will have recorded enough data to allow them to either find or rule out the Higgs as predicted by the standard model.
IronAISS writes: We know that an electron is impossible to see it in its exact position and its exact velocity,but unlike electrons, Atoms are much more easy to detect, they are made from sub atomic particles such as electrons, protons and neutrons. Scientist have been struggling to see an atom's internal structure directly from many years,and of course, the only way that scientist could see it were to map out a material's atomic structure in a mathematical sense, using imaging techniques.