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Ideas to spark your mind
Spintronics
Spintronics, or magnetoelectronics, is a new technology that uses the spin of electrons along with their electrical charge to store and transmit digital signals. Research has been done on new magnetic materials on how to control the electronic spins, especially on a nano scale. Graphene, a new material discovered in 2004, might be one of the most promising prime material for making carbon tubes (nano tubes) and having excellent electrical properties, might propel the next wave of integrated circuit technology. Like silicon, its electrical properties can be altered by infusing it with trace elements and therefore rendering it useful for manipulating the passage of electricity. It can also be made to possess magnetic characteristics, thus making it more useful than silicon.
Graphone nano sheets with white dots of hydrogen atoms
According to the research conducted by the group based in Virginia Commonwealth University, Peking University in Beijing, the Chinese Academy of Science, and Tohoku University in Japan, Graphene can be made magnetic by controlling how much ‘hydrogen’ to be infused with. The resulting material called ‘Graphone’ can be made into single layer nano sized sheets that have characteristics suitable for micro circuit applications. The group was founded by the National Natural Science Foundation of China, The National Science Foundation and the U.S. Department of Energy. You could now start figuring how best to use this amazing material.
September 13, 2009.
The newest attack arsenal brought to you by SteadiCopter
Get your hand on this newest of rotary winged Unmanned Automated Vehicle (UAV) if you can. It is a helicopter with a patented system for controlling airborne hovering and it is the latest arsenal for fighting terrorist. Designed by an Israeli defense team, this UAV can be armed and remotely controlled for seeking guerilla hideouts and will be especially useful for action in Afghanistan. Unlike fixed winged UAV, this copter can hover in a position for accurate picture capture. Assisted by an onboard GPS system, the vehicle can be used to accurately launch weapons at sites that are dangerous to conventional weaponries. Looks like the good guys are going to have a field day!
October 15, 2009
An artificial leaf that is ten times more efficient than the natural thing!
How could it be possible? Mankind more capable than god! Yes, it is true. Payback time is near at hand. Scientists at the National Meeting of the American Chemical Society have announced the invention of the first "practical artificial leaf." According to them, the device bears no resemblance to Mother Nature's version but is actually an advance solar cell made from silicon, electronics and catalysts fashioned from inexpensive materials such as nickel and cobalt amongst other elements. What it does is it efficiently splits water into hydrogen and oxygen which is used to run fuel cells. Its efficiency is ten times better than natural leaf. It is of course not the first time that such a device has been designed, but previouse attempts had proved unstable and made from expensive materials.
April 2, 2011
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Light waves have no magnetic effects...that is the way we are taught in schools, but.....
We have always been taught that light waves consist of photons and it does not have properties that are associated with electrons. So we designed solar panels that captures these photons using silicon. We have been concentrating on silicon panels for umpteen years and on ways to improve the efficiency of solar panels. Unfortunately, we have only managed a best of 25 % efficiency. That is why we are still struggling with putting more solar panels in the market as it is still very expensive compared to fossil fuel. But that could change. A team of scientists at the University of Michigan has discovered that light after all has a magnetic effect and they went to show that under certain circumstances, light waves has both electric and magnetic effects but the magnetic effect is so weak that it cannot be harnessed. However, when light is produced in the right intensity, the light field can generate magnetic effects a million times stronger than expected. It does so when it is traveling through a material that does not conduct electricity. This would mean that we can tap the magnetism produced to generate electricity direct, without having to use a silicon medium. Presently, glass is used as the medium but the scientist believes that with further understanding of the magnetic effects of light, new materials will be harnessed to tap the source of energy, including tweaking the existing silicon panels to reach a higher efficiency level.
June 22, 2011.