Most techniques for generating electricity from heat need high temperatures to achieve reasonable efficiency. Solar thermal energy is a form of energy and a technology for harnessing solar energy to generate thermal energy or electrical energy for use in industry. This high-temperature heat can be stored, thus allowing electricity to be generated on demand which is an important advantage of this technology.The first installation of solar thermal energy equipment occurred in the Sahara desert approximately in 1910 and was a steam engine without a kettle and fire but with a mirror system for sun light collection to heat water for the needed steam pressure.Solar Thermal Power PlantThousands of tracking mirrors, known as heliostats,directly concentrate sunlight onto a boiler filled with water that sits atop a tower. When the sunlight hits the boiler, the water inside is heated and creates high temperature steam. Once produced, the steam is used either in a conventional turbine to produce electricity.
Recently, a gym teacher in Turkey found the remains of polycephalic dolphin remains on a beach in Dikili, near the western Izmir. Turkish marine biologists are going to study the polycephalic dolphin, a phenomenon that is known from ancient times. It’s a condition of having more than one head. The oldest polycerphalic animal is 120 million years old lizard found in 2007. Polycephalic animals have their own brain but share the control of the organs and limbs.
Engineers of the Massachusetts technological university developed the system founded on nanoparticles with help of which it is possible to switch off and include blood clotting by light of lasers reversibly. The principle of work of system is based on release in due time substances, either blocking, or restoring work of one of factors of blood clotting — thrombin. Each of two substances was attached to cylindrical gold nanoparticles of one of two types – short and long. Radiation by the high-frequency laser led to release of the substance attached to short nanoparticles, but didn’t influence that was recorded on long and vice versa. As a blocker scientists used a special aptamer – the artificial fragment of DNA which has been selected on force of affinity to this factor of blood clotting .
Participants of the international experiment of T2K confirmed transformation of one grade of elementary particles of a neutrino earlier opened by them into another (the oscillation neutrino). This achievement can become the beginning of studying of the new physical phenomena which aren’t described by Standard model of interaction of elementary particles, the head of department of physics. It is a question not only of one more manifestation of the new physics which isn’t described by Standard model, but also of deep studying of such physics. The studying of the oscillation neutrino in electronic neutrinos opens unique opportunities for the solution of one of the most intriguing riddles of the nature: phenomenon of asymmetry of the Universe. Standard model is a theoretical design in physics of the elementary particles, describing electromagnetic, weak and strong interaction of all elementary particles.
Researchers from Institute of technology of Georgia, the USA, synthesized the catalyst from nanocrystals of Pt-Ni (platinum-nickel). The catalyst possesses record-breaking high activity in relation to reaction of restoration of oxygen (ORR). Let’s note that low catalytic activity concerning ORR is considered one of the main obstacles for successful commercialization of fuel elements on a basis. Fuel elements on the basis of proton changing membranes have high efficiency of transformation of energy that allows to replace with them petrol and diesel engines of an internal combustion engine. Unfortunately, assembly of fuel elements of the power accepted for commercial use, reliability and durability requires considerable amount of expensive metal – platinum. Therefore to make PEMFC suitable for large-scale commercialization, are necessary new more effective catalysts. By calculations of specialists of the Ministry of an energy drink of the USA, activity of the catalyst in relation to reaction of restoration of oxygen has to be increased approximately by 3–4 times that will allow to reduce amount of used platinum at preservation of present efficiency of fuel cells.
We take for granted modern calendars, the system invention which trace time and act as one of the most monumental achievements of mankind… but them was much more than one. Rough, but working calendar was found in the district Warren Fild in the Scottish county. It is supposed that this historical monument for measurement of time could be created much earlier, than the Sumer bronze calendar found in Mesopotamia. Archeologists consider that Warren Fild hunters and collectors for long years, approximately from 8000 g BC used a calendar that does it by the oldest calendar in the world, found today. The site with the oldest calendar was dug out for the first time by National fund for Scotland in 2004. Unusual marking was noticed during the air photography which has been carried out by the Royal commission on affairs of ancient and historical monuments to Scotland.
The French scientists found huge viruses of an extraterrestrial origin in reservoirs of Chile and Australia. The virus was in one of deep-water amoebas and in ten times exceeded any of nowadays existing viruses on our planet. And the structure of its genes only for 6 percent is identical terrestrial, the others 94 percent – an extraterrestrial origin. The virus was given already the name – Pandora.Experts believe that the virus could arise on Earth, having arrived from other planet, for example, Mars. Dr Jean-Michel Claverie from the French university Ex-Marseille claims that a virus so big that it even it is difficult to consider under a school microscope. Thus the Pandora virus superficially resembles a bacterial cage and looks as a big dark stain. It is known that it can breed only being in owner.
Patients expect heart transplantation by months, and even for years. Only few from hundred on the average have an opportunity of change of a vital, and the others remain to teeter on the brink lives and death. But now, 15 years of laborious works later, in the market of transplantology there is a new artificial human heart –in a cover from cow meat. New artificial heart was created by the French company Carmat. All hopes that cow artificial heart will be better, than nowadays existing artificial organs. The matter is that all artificial hearts slowly wear out when their mechanical details come into contact to an internal structure of the person. Cow meat has to correct it.
The future in which there are cyborgs, any more behind mountains. Directly today it is possible to turn on partially in the robot, having got on itself couple of bionic foot under the name AlterG. According to developers, it won’t to remove them after several minutes of use. Looking as part of an exoskeleton from the future, bionic feet of AlterG surprisingly well repeat a shape of the real human feet and at all don’t hold down movement. Even on the contrary. According to testers, it is much more convenient to go and run in them, and there is a feeling that they increase force of muscles a little. Certainly, AlterG were created not for entertainments. These feet were developed first of all for people with various injuries of the bottom extremities, including the congenital. It is difficult to many people even to rise on a usual ladder, especially when each step is given by all body pain. For such case also created AlterG binoic foot.