According to the U.S. network reported Science Daily, University of Miami and University of Tokyo and Tohoku University scientists have developed a "spin" the battery, only about the diameter of our hair so thick, it can be called by the magnetic field to the "magnetic tunnel junction (MTJ) "device to charge the magnets. The magnet is that some 5 nm thick composed of zinc gallium and arsenic magnet matrix.
This technology is expected to produce the computer hard drive does not move, than the existing hard drive will be faster, cheaper and more energy. In the future, this battery will be used to drive the car. The study, published in the March 12 issue of "Nature" magazine.
These scientists developed the device can store energy in the magnet, rather than through chemical reaction to produce energy. Stewart E. Barnes of the University of Miami, said physicist, like the toy car on the winding, as the rotating magnetic field to the battery through the winding, there is no chemical reaction. This device is any device than is currently found to be good. "We have predicted the effect, but do not know the size of this effect and duration of how long an estimated ten minutes on this unit needs to generate enough voltage, rather than what we expect of milliseconds."
Sunday, December 26, 2010
British scientists invented robotic fish
British scientists have said they will fish five battery-powered machine into the Spanish port waters, for the detection of water pollutants.
This machine looks like carp fish, about 1.5 meters, each cost about 2 million pounds. They who will be equipped with detectors, can be found in the water of pollutants, such as the ship leaking fuel or other chemicals.
Responsible for the development of robotic fish research team, Essex (Essex) University robotics expert Hu excluded students (HuoshengHu) said that, this robot fish, fish by the tail swing in the water to imitate the road.
Robotic fish will be installed detectors to monitor the water's oxygen content, leakage of crude oil tankers and pipelines of sewage from the ground.
This machine looks like carp fish, about 1.5 meters, each cost about 2 million pounds. They who will be equipped with detectors, can be found in the water of pollutants, such as the ship leaking fuel or other chemicals.
Responsible for the development of robotic fish research team, Essex (Essex) University robotics expert Hu excluded students (HuoshengHu) said that, this robot fish, fish by the tail swing in the water to imitate the road.
Robotic fish will be installed detectors to monitor the water's oxygen content, leakage of crude oil tankers and pipelines of sewage from the ground.
MBV technology can change waste into reuse
Mechanical, biological and fermentation (MBV) environmental protection technology booming in recent years in Germany. According to our country to adopt the technology, the process of industrialization in developed countries over the number of green stage, one step, direct the formation of a circular economy, environmental protection industry. MBV environmental technology is the core of microbial fermentation technology, coupled with modern monitoring and mechanical sorting system, can form scale and access to economic benefits.
Throw the garbage go? The traditional approach is to throw garbage pit, landfill, or stacking, this method is currently in the country more than 90%. Recently, the construction of incinerators in some places, especially in large cities has become the new orientation of garbage on the ground that can generate electricity, economical use of land resources. However, incineration releases new pollution, such as dioxin, etc., waste pollution in the transport process can not be belittled. For these reasons, the waste incineration project has caused some local residents in opposition. In fact, the urban waste itself is a "gold mine", the best approach is to implement waste separation, to be integrated, recycling.
Throw the garbage go? The traditional approach is to throw garbage pit, landfill, or stacking, this method is currently in the country more than 90%. Recently, the construction of incinerators in some places, especially in large cities has become the new orientation of garbage on the ground that can generate electricity, economical use of land resources. However, incineration releases new pollution, such as dioxin, etc., waste pollution in the transport process can not be belittled. For these reasons, the waste incineration project has caused some local residents in opposition. In fact, the urban waste itself is a "gold mine", the best approach is to implement waste separation, to be integrated, recycling.
The second generation light-emitting diodes: farewell the traditional household light bulb
Glasgow University researchers who are developing a new technology will replace the household light bulbs within three years.
LEDs have been used in a variety of electrical equipment such as computers and mobile phones. LEDs more energy-efficient than standard bulbs. However, due to structural and material constraints, many of the standard diode light is blocked, it will weaken the brightness does not apply to household lighting.
Currently, the researchers have developed a new generation of light-emitting diode, this diode than the standard energy-saving bulbs home brighter and more energy efficient.
Responsible for the research project at Glasgow University, Dr Faiz Rahman said: "The surface of the diode to drill a small hole can emit more light, so to keep energy consumption to increase without changing the light's brightness. So far, not as a standard light-emitting diode lighting device is fully introduced into the family, because the production process more time-consuming hole. However, the University of Glasgow through the use of world-class equipment, we firmly believe that we can find billions of holes and on the diode fast and cost-saving method. "
LEDs have been used in a variety of electrical equipment such as computers and mobile phones. LEDs more energy-efficient than standard bulbs. However, due to structural and material constraints, many of the standard diode light is blocked, it will weaken the brightness does not apply to household lighting.
Currently, the researchers have developed a new generation of light-emitting diode, this diode than the standard energy-saving bulbs home brighter and more energy efficient.
Responsible for the research project at Glasgow University, Dr Faiz Rahman said: "The surface of the diode to drill a small hole can emit more light, so to keep energy consumption to increase without changing the light's brightness. So far, not as a standard light-emitting diode lighting device is fully introduced into the family, because the production process more time-consuming hole. However, the University of Glasgow through the use of world-class equipment, we firmly believe that we can find billions of holes and on the diode fast and cost-saving method. "
New hydrogen production technology reduces fossil fuel consumption
Scottish scientists have discovered a new natural, renewable hydrogen production methods. The breakthrough for the first time obtained by the ethanol fermentation of food all transformed into hydrogen and carbon dioxide.
Produce hydrogen fuel cells as fuel. Fuel cell can be directly converted into fuel for electricity, without combustion.
The new hydrogen production method is the University of Aberdeen, Scotland, scientists and laboratories around the world partners in the co-operation after 10 years. This new method for the future of the family, to power buildings and vehicles.
At present, more than 90% of fossil fuels, hydrogen is natural gas through the system to obtain. Hydrogen for power generation, a significant reduction in the future of human dependence on fossil fuels. People are the main concern of this approach is that the production process of large quantities of carbon dioxide contribute to global warming.
However, this new approach to food fermentation ethanol as raw material, with carbon neutral and sex. The environment the carbon dioxide produced will be re-absorbed, used for plant growth.
Produce hydrogen fuel cells as fuel. Fuel cell can be directly converted into fuel for electricity, without combustion.
The new hydrogen production method is the University of Aberdeen, Scotland, scientists and laboratories around the world partners in the co-operation after 10 years. This new method for the future of the family, to power buildings and vehicles.
At present, more than 90% of fossil fuels, hydrogen is natural gas through the system to obtain. Hydrogen for power generation, a significant reduction in the future of human dependence on fossil fuels. People are the main concern of this approach is that the production process of large quantities of carbon dioxide contribute to global warming.
However, this new approach to food fermentation ethanol as raw material, with carbon neutral and sex. The environment the carbon dioxide produced will be re-absorbed, used for plant growth.
British scientists announced that they had created human sperm foe the first time
From Newcastle University research team announced that internationally renowned academic journals in "Developmental Cell", published this groundbreaking results. The study headed by biologist Virginia, he had successfully bred using mice sperm stem cells.
8, British media quoted the contents of the study reported, the researchers first extract the male embryonic stem cells, with catalytic chemicals and vitamins to make them into early sperm cells, and then cultivate a mature sperm. During a series of cell division.
Observed under the microscope, this artificial sperm and similar to normal human sperm with head and tail, you can swim. Nayeniya that they also have normal sperm-specific proteins and chromosomes.
He said that this is the number of "fully mature, with a practical," the sperm can be combined with the human egg, and ultimately develop into embryos.
8, British media quoted the contents of the study reported, the researchers first extract the male embryonic stem cells, with catalytic chemicals and vitamins to make them into early sperm cells, and then cultivate a mature sperm. During a series of cell division.
Observed under the microscope, this artificial sperm and similar to normal human sperm with head and tail, you can swim. Nayeniya that they also have normal sperm-specific proteins and chromosomes.
He said that this is the number of "fully mature, with a practical," the sperm can be combined with the human egg, and ultimately develop into embryos.
Intelligent water-saving technology save large amount of water resource for US
Reuters reports that humidity can be controlled through the installation of a smart system, the United States each year due to excessive irrigation can save 225 billion gallons of waste (852 billion liters) of water.
Sustainable water resources development management company HydroPoint cypress Chief Officer Chris Grace (Chris Spain) said that according to the report of the U.S. Association of water, the U.S. family business and plant grass over the extent of irrigation at 30% to 300%.
Si Boen said: "The waste water is caused due to technical deficiencies. U.S. 45 million by the irrigation system is just a simple timer control. They do in controlling the timing is very good, but not according to the needs of land for precise irrigation. "
Si Boen added, "the urban landscape, also known as 'urban irrigation' accounted for 58% of the total urban water, waste water each year which would result in more than 544,000 tons of greenhouse gases."
And intelligent irrigation systems can be optimized according to the parameters of the corresponding amount of water. These parameters including plant and soil type and light volume. The system also has a weather sensing devices used to measure soil moisture after rainfall.
Sustainable water resources development management company HydroPoint cypress Chief Officer Chris Grace (Chris Spain) said that according to the report of the U.S. Association of water, the U.S. family business and plant grass over the extent of irrigation at 30% to 300%.
Si Boen said: "The waste water is caused due to technical deficiencies. U.S. 45 million by the irrigation system is just a simple timer control. They do in controlling the timing is very good, but not according to the needs of land for precise irrigation. "
Si Boen added, "the urban landscape, also known as 'urban irrigation' accounted for 58% of the total urban water, waste water each year which would result in more than 544,000 tons of greenhouse gases."
And intelligent irrigation systems can be optimized according to the parameters of the corresponding amount of water. These parameters including plant and soil type and light volume. The system also has a weather sensing devices used to measure soil moisture after rainfall.
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