How to build a brain
To make Gordon's 'brain', scientists removed brain cells from rat embryos and grew them in a dish. Bathed in a warm nutrient solution, the cells, also known as neurons, form connections with each other.
'We keep Gordon's neurons in an incubator at body temperature,' says creator Kevin Warwick, robot expert at the University of Reading. 'We feed them every few days with a fresh nutrient and mineral solution - similar to the kind of thing athletes drink.'
Remote brain power
To avoid infection, Gordon's neurons have to be kept apart from his robotic body. The neurons are stored safely inside a sterile chamber, and signals are sent between them and the body via a wireless link.
A basic body
Although his brain is special, Gordon's body is more run-of-the-mill. Standing just 11 cm tall, he moves about on two wheels. Sonar sensors allow him to detect nearby objects.
Which way to turn?
Scientists have managed to teach Gordon to avoid bumping into the walls of his pen 80% of the time. His sonar system sends information as an electrical pulse to his neurons. The neurons respond and send signals back to his body, telling it which way to turn.
Physics research constant progress in many areas, and will still so far in the future.
Condension objects in physics, theoretical problem is not be the biggest explanation High-temperature superconductivity. Many businesses do to make spintronic and working quantum computer.
In the physics of particles, the first pieces of evidence for physics experiments outside the Standard Model has begun to yield results. The most famous is the appointment that the neutrino has a mass non-zero. The results of this experiment appears to have completed the solar neutrino problem that has long-standing physics in the sun. Neutrino physics is a major area of research experiments and theory, which is active. In the next few years, faster particles will begin to examine the scale of energy in the range TEV, which is where the eksperiment hope to find evidence for the Higgs boson and the particles supersimetris.
The theory also try to present quantum mechanics and general relativity into a theory of quantum gravity, a program that has been running for half a century, and still does not produce fruit. Candidates are next on the M-theory, superstring theory and loop quantum gravity.
Many astronomical phenomena and cosmological has not explained satisfactorily, including the existence of cosmic ray energy ultra-high, asimetris baryon, faster universe and the acceleration lap anomaly galaxy.
Although much progress has been made in the high-energy, quantum, and astronomical physics, a phenomenon many other day-to-day, regarding the complex system, chaos, or turbulens still barely understood. Complex problems that seem to be resolved by clever application of dynamics and mechanics, such as the establishment of the sandbar, "node" in the water "trickling", catastrof theory, or the Page-in collection heterogenic own that vibrate still not be. This complex phenomenon has received more attention since the 1970s for several reasons, not due to lack of other methods of modern mathematics and computer system that can calculate the complex to be modelling with a new way. Relations between the disciplines of physics complex has also increased, as in the lessons turbulens in aerodinamica or observation pattern formation in biological systems. In 1932, Horrace Lamb predict:
"I have parents now, and when I died and went to heaven there are two things that I hope can be explained. One is quantum electrodynamics, and one is from turbulens Fluid movement. And I'm more optimistic on the first. "
source : wikipedia.com
Down With Oil
To eliminate the petroleum source altogether, he used an epoxide derived from the oil in orange peels as a co-reactant to make plastic with CO2. Coates is working to commercialize CO2-based plastics with a range of properties, and other "environmentally benign" polymers, through a company called Novamer.
Even if fossil fuel contributions were eliminated from all of these reactions, experts agree that making plastics from CO2 generated in power plants or other industrial processes will not fix the climate change problem.
"When we keep burning as much fossil fuel as we are, it's going to be impossible for one chemical use to negate all of the CO2 that's made on a daily basis," Coates said. Production of all polymers worldwide amounted to about 260 million tons in 2005, according to Müller, while CO2 emissions added up to more than 100 times more.
"However, if you're using CO2 instead of a petrochemical source, then you are prolonging the lifetime of the petrochemical resources that we have," said Christopher Rayner, of the University of Leeds in the U.K., who is working to make formic acid, which can be used in fuel cells, from CO2 and hydrogen.
Doing As the Plants Do
Another approach to providing the energy needed to turn the carbon in CO2 into a more useful form is with electrochemical cells -- which use electricity and a catalyst to convert CO2 into carbon monoxide and, eventually, into a fuel such as methanol. Daniel Dubois of the Pacific Northwest National Laboratory, another meeting presenter, is tackling this problem.
"Part of the problem is, where do you get your electricity?" Rayner said of this method. Unless it comes from a renewable source, the electricity supply creates CO2 emissions that undo the gains in absorbing CO2 in the electrochemical process.
There is, of course, a precedent for stripping CO2 out of the atmosphere on a large scale and converting it into all sorts of useful molecules: Plants do it all day by harnessing the sun's energy through photosynthesis and using it to build their cells and tissues.
Some researchers are trying to turn CO2 back into fuels using methods similar in principle to photosynthesis -- using the energy in light to transform carbon dioxide into higher-energy molecules.
Others are trying to capitalize directly on plants' ability to convert CO2 into potentially valuable molecules, including sources of fuel. It will be a challenge to identify which compounds can economically be made this way, Müller pointed out, also noting that only one percent of the sun's energy is converted by photosynthesis into plant tissue. He hopes synthetic approaches can be more efficient.
"Of course we can learn from nature," he added, "We'd like to copy them."