Sunday, August 30, 2009

Proc With Walk With Me

For the first time, IBM 3D photography bonds between atoms


IBM just added another milestone to his extraordinary record of scientific progress, this time having accomplished something that just two decades ago considered virtually impossible: "Photograph" 3D links a group of atoms. That is, visually capture how a group would be perceived of atoms and the bonds between them, or what we call its chemical structure in this case.

In this case what was captured was a pentacene molecule, which measures 1.4 nanometers long (ie, 1.4 billionth of a meter).

making this amazing first image, IBM used a silicon cantilever needle rebestida carbon dioxide and had to maintain a temperature of 5 degrees Kelvin (-268.15 Celsius, or -450.67 Fahrenheit) for 20 continuous hours and in an environment totally free of vibration, as the slightest tremor molecular ruin the experiment.

The objective of this experiment is the creation of new technologies to allow more closely investigating the phenomena occurring at the quantum level because at least in the case of IBM that means power in a future not only better understand the forces that govern the quantum world, but to develop a new generation of Quantum Chips with a power unimaginable today.

This development is extremely important, as this has major implications for nano-technology, particularly in the creation of nano-factories, which are used to create nanobots, which are an infinity of use, from medical guardians within our bodies, to rebuilders of the environment.

A curious fact is that it was IBM who first could manipulate atoms directly, in 1990. The first thing he did with this advance was to write the initials IBM, one atom at a time (see picture ).

A couple of notes about the photo: will notice that it looks "fuzzy", that is because this quantum level is impossible to know the exact location of the components of the atom, since electrons orbiting the nucleus (which does not have a specific place) actually live in a "cloud of possibilities" in several places simultaneously at a time. So more than that goes against our intuition, which IBM was photographed "the chances that the atoms are where we hope they are."

brightest spots in the photo are the most likely places where you may find the object, and dark spots less likely. This is consistent with the theory, because the more distant from the nucleus, the less likely that an electron is there.

Wednesday, August 26, 2009

Mario Salierie Filmliste

Karl Merk, the man with the first full arm transplants




The German farmer Karl Merk , which in July last year was the first man in the world that transplanted two arms.

Karl Merk The ordeal began in 2002 when he was 48 years. He was working as a laborer on a farm when a corn harvester amputated both arms almost shoulder height. A colleague found him bleeding dying, but managed to keep him alive until the arrival of medical equipment despite the fact that Karl, unable to endure the pain, repeatedly asking him to kill him.

A team of 40 doctors and nurses at the clinic at the Technical University of Munich, worked for more than 15 hours to make the new surgery, working synchronously in two operating rooms, to remove the two arms of the donor (late hours), and transplanting both ends to Karl Merk.

Just a year after undergoing the transplant, Merk and moves with the force of your muscles both arms, perceived sensations in the left hand and can move to "a little" progress that doctors described as a sensation press conference.