Friday 31 January 2014

Is this physicist solve the mystery of the origins of life?

A popular hypothesis about the origin of life is linked to the prehistoric "soup", lightning and an incredible amount of luck. However, if the new, the provocative theory is correct, luck had very little interest in the creation of life.

Physicist behind this idea is considered to be the origin and evolution of life follow the fundamental laws of physics and that " surprising as the rock that rolls downhill ."
From the standpoint of physics , there is one crucial difference between living things and inanimate pile of atoms first are much better at capturing energy from the environment and spending that energy as heat.
Jeremy England , year-old assistant professor at the University MIT , has developed a mathematical formula they believe that explains this capacity .
According to the formula, based on the known physics , which holds that when a group of atoms driven by an external power source ( like the sun or chemical fuels) and is surrounded by hot springs , such as the ocean or the atmosphere , it will often gradually restructure itself to better energy consumers . This means that under certain conditions, substances inevitably takes the physical attributes associated with life .
" It all starts with any group of atoms . And if enough of them illuminates , you should not be surprised if you get a plant , "said England .
England 's theory is not intended to replace , but rather to further strengthen Darwin's theory of evolution by natural selection .
" I'm not saying that his idea is wrong. On the contrary . I suggest that , from the standpoint of physics , Darwin's theory of evolution can be considered a special case of a much more prevalent phenomenon , "said England .
This idea has caused many reactions of experts and colleagues , who believe that it is a biased or an idea or a potentially incredible discovery , or both.
England theoretical results are generally accepted as valid . In his interpretation - this formula is the driving force behind the class of phenomena in nature that involve life - although this is not proven . However , already have an idea of who could claim this to test in the laboratory .
At the heart of his ideas is the second law of thermodynamics , also known as the " arrow of time " . Hot things to cool down , gas moves through the air , and can whisk the eggs , but never spontaneously restored to its original condition . Energy tends to spread or decompose over time .
An example of this can be coffee, which when placed in the room becomes the same temperature as the room itself . As long as nothing affects the room and coffee , the coffee will not keep you warm , this process can not be reversed , because the chances are that all the energy in the room to concentrate on atoms coffee - very small .
Life does not violate the second law of thermodynamics , but until recently , physicists have not been able to use thermodynamics to explain how did it come to creating life , because we were not able to predict an external power source .
Chemistry prehistoric " soup " random mutation , geography , catastrophic events , and many other factors have contributed to the earth's flora and fauna. However , judging by Inglandovoj theory , the basic principle koij manages the entire process is driven adaptation of matter .
"It is very tempting to think about the natural phenomenon may be responsible for this. Many examples can be found under our noses , but because they did not ask , we could not even notice them , " he said .

Sunday 26 January 2014

This is how long you'd survive in outer space with no gear on

Don't go rushing to book your tickets on a space flight just yet, it's not a super long time.

While you won't explode, swell up, freeze or go through any sort of living hell, it wouldn't be the best thing you could do for your health either.

You could suffer from really bad sunburn if you're on the wrong side of the planet. Within 10 seconds you'd start experiencing swelling skin and the bends, gases bubbling up inside you due to decompression.

After about 30-40 seconds, you'll probably fall unconscious from lack of oxygen. Injuries start to build up and, after 1-2 minutes, you'd probably be dead.

One test subject at a NASA research center was accidentally left in a near-vacuum for 15 seconds in 1965. He was in a simulate environment when his suit failed.

He reported feeling and hearing the air leaking out of the spacesuit he was in and his last conscious memory, 14 seconds into the ordeal, was the water in his mouth boiling. He regained consciousness when the test chamber had a pressure equivalent to a 15,000 feet altitude.

Don't go rushing to book your tickets on a space flight just yet, it's not a super long time.
While you won't explode, swell up, freeze or go through any sort of living hell, it wouldn't be the best thing you could do for your health either.
You could suffer from really bad sunburn if you're on the wrong side of the planet. Within 10 seconds you'd start experiencing swelling skin and the bends, gases bubbling up inside you due to decompression.
After about 30-40 seconds, you'll probably fall unconscious from lack of oxygen. Injuries start to build up and, after 1-2 minutes, you'd probably be dead.
One test subject at a NASA research center was accidentally left in a near-vacuum for 15 seconds in 1965. He was in a simulate environment when his suit failed.
He reported feeling and hearing the air leaking out of the spacesuit he was in and his last conscious memory, 14 seconds into the ordeal, was the water in his mouth boiling. He regained consciousness when the test chamber had a pressure equivalent to a 15,000 feet altitude.

Read more at http://www.omg-facts.com/Science/This-Is-How-Long-Youd-Survive-In-Outer-S/51371#p6CFdQ2Ry4ljRPlE.99
Don't go rushing to book your tickets on a space flight just yet, it's not a super long time.
While you won't explode, swell up, freeze or go through any sort of living hell, it wouldn't be the best thing you could do for your health either.
You could suffer from really bad sunburn if you're on the wrong side of the planet. Within 10 seconds you'd start experiencing swelling skin and the bends, gases bubbling up inside you due to decompression.
After about 30-40 seconds, you'll probably fall unconscious from lack of oxygen. Injuries start to build up and, after 1-2 minutes, you'd probably be dead.
One test subject at a NASA research center was accidentally left in a near-vacuum for 15 seconds in 1965. He was in a simulate environment when his suit failed.
He reported feeling and hearing the air leaking out of the spacesuit he was in and his last conscious memory, 14 seconds into the ordeal, was the water in his mouth boiling. He regained consciousness when the test chamber had a pressure equivalent to a 15,000 feet altitude.

Read more at http://www.omg-facts.com/Science/This-Is-How-Long-Youd-Survive-In-Outer-S/51371#p6CFdQ2Ry4ljRPlE.99

Monday 20 January 2014

Does the Sun loses its power?

A research project called Varsity ( Variability of the Sun and Its Terrestrial Impact) ) will specifically seek to cover four important topics: the solar magnetism and extreme events , solar transients , changes in the magnetosphere and the consequences of and processes in the Earth's atmosphere .
"Although the sun has shown a couple of strong flashes in the past two years , overall, the current solar 24 cycle is much weaker than the previous , "said the Tportal Jasa Čalogović , an expert in the sun in Hvar Observatory , which is participating in the project.
The last solar minimum had the most days without sunspots in the last 100 years, followed by a weaker peak. From this it can be concluded that long-term solar activity has changed significantly compared to its previous cycle .
However, for now no one knows precisely explain the thing , whether the weakening of solar activity to continue and what are the possible consequences of such a weak sun - whether to slow down global warming , it may even cause colder weather or not to have a stronger effect on climate.
It is expected that the real answer is no , because this is the first such a drastic change in the history of modern space exploration .

Friday 17 January 2014

Japanese supercomputer simulates the human brain

Japanese supercomputer has managed to make a simulation of the human brain.

The researchers used a "K" computer in Japan, currently the fourth most powerful computer in the world, in order to simulate the activity of the human brain.

The computer has 705,024 processing cores and 1.4 million GB of RAM, but he still needed 40 minutes to calculate the data needed for one second of brain activity. 

The project, a joint venture of Japanese research group "RIKEN", Institute of Science and Technology, Okinawa and Research Center in Germany, the largest simulation of networks of neurons. Researchers have used some technology to replicate the network consisting of the 1.73 billion nerve cells, associated with 10.4 trillion synapses.

Although the simulation is extremely important, it represents only one percent of the network of neurons in the human brain.

Researchers hope that with the help of this simulation collect valuable knowledge that should help in the design of new software for the simulation.

In addition, this achievement gives scientists a glimpse of what could be achieved using the next generation of computers that can handle a significantly larger number of calculations per second, and it should be a big step forward, since it is considered that they have the same opportunities as human brain, and provide a real-time simulation.