Showing posts with label scientific thought and advancement. Show all posts
Showing posts with label scientific thought and advancement. Show all posts

Monday, July 2, 2012

Titan : Saturn’s Moon Has Watery Ocean

Another day, another revolutionary disclosure..  UFO Blogger.  Excerpts:

Now in latest development, according to NASA scientists believe they have found the strongest sign yet that Saturn's giant moon, Titan, may have a salty ocean beneath its chilly surface.



If confirmed, it would catapult Titan into an elite class of solar system moons harbouring water, an essential ingredient for life.


Titan boasts methane-filled seas at the poles and a possible lake near the equator.


And it's long been speculated that Titan contains a hidden liquid layer, based on mathematical modelling and electric field measurements made by the Huygens spacecraft that landed on the surface in 2005.


The latest evidence is still indirect, but outside scientists said it's probably the best that can be obtained short of sending a spacecraft to drill into the surface - a costly endeavor that won't happen anytime soon.
The research looks convincing, said Gabriel Tobie of France's University of Nantes.
"If the analysis is correct, this is a very important finding," Tobie said.
..
Titan is one of the few worlds in the solar system with a significant atmosphere, and the presence of an underground ocean could help explain how Titan replenishes methane in its hazy atmosphere.

Having an internal body of water would also make Titan an attractive place to study whether it would be capable of supporting microbial life.


Other moons on the shortlist: Jupiter's Europa, where an underground ocean is thought to exist and another Saturn moon, Enceladus, where jets have been seen spewing from the surface.

"Any environment that has liquid water needs to be investigated carefully," said planetary scientist Jean-Luc Margot of the University of California, Los Angeles, who had no role in the research.

Wednesday, June 27, 2012

Quantum Researchers Able to Stop and Restart Light

Fucking amazing.  What a time we in which we live!  Now, what are we gonna do with this?  Waking Times.  Full article:

In two independent experiments that defy the notions of Einstein, researchers have been able to stop, then restart a beam of light.



Ordinarily, light travels at the speed of 186,282 miles per second, but the research team of Lene Hau, a professor of physics at Harvard, who in 1999 was able to slow light down to 38 miles per hour, has been able to trap light in a cloud of sodium atoms super-cooled to near ‘absolute zero.’


“It’s nifty to look into the chamber and see a clump of ultracold atoms floating there,” Hau says. “In this odd state, light takes on a more human dimension; you can almost touch it.”
In an independent experiment, an easier approache was tried by the team of Ronald Walsworth and Mikhail Lukin at the Harvard-Smithsonian Center for Astrophysics (CfA).
They shot laser beams through a dense cloud of rubidium and helium gas. (Rubidium, in its solid or natural form, is a soft, silver-white metal.) The light bounced from atom to atom, gradually slowing down until it stopped. No supervacuum or ultra-cold was needed. In fact, the chamber where the light stopped was at a temperature of 176 degrees F.
Both experiments accomplish almost the same thing, however, in the CfA experiment researchers were only able to store about half of the incoming light, and the storage time was about half that of Hau’s experiment.
Think of both contraptions as sophisticated light switches that control not just light but information. Incoming light can carry information expressed by changes or modulations of its frequency, amplitude, and phase. When the light stops, that information is stored just like information is stored in the electronic memory of a computer. To access the information, you turn on a control laser, and out it comes. 
Remarkably, scientists are somewhat uncertain about the implications and practicality of this research.
“We hope for wonderful things,” says David Phillips, who worked on the CfA “stop light” project. “Our imagination hasn’t figured out what the possibilities are yet.”
However, there appear to be clear implications for using experiments like this to ultimately improve the speed of computers, potentially creating the possibility to shift from binary computing to quantum encoding of data.



Computers operating by these so-called quantum effects are much more efficient that those available today, or even on the drawing board. (“Quantum” refers to changes in the energy levels of the atoms.) Today’s machines represent information in bits, electronic combinations of zeros and ones. Bits represented by quantum states of atoms could carry much, much more information. Cubic inch for cubic inch, quantum computers could tackle problems that would stymie the most super of conventional computers. For example, they could perform many calculations simultaneously. 
The eminent physicist Albert Einstein theorized that it was impossible for light to travel at a speed faster than 186,282 miles per second, and in this case he has not yet been proven wrong.

Einstein never said anything about slowing light down, now did he?