Science and IT news

In the United States developed the first functioning “invisibility cloak”

So far, the cloak is able to hide from view only microscopic objects.The thickness of the final version of its matter is only 80 nanometers.A team of scientists from the University of California at Berkeley, have successfully created a real invisibility cloak, writes Cnet. Detailed results and progress of the work of researchers published in the journal Science.The resulting invention was the world’s first cloak, which is able to cover the three-dimensional objects “second skin” and hide them in the wavelength range of visible light.At the heart of the development of the principle of plasmon resonators, which performs the role of small nanoantenna gold. They are able to transform light into electron oscillations.Scientists have invented an electronic “cap of darkness”This, in turn, does not allow the incident light is scattered on the cloak, making the object invisible to the human eye and the camera lens photosensitive. The light thus converted into other forms of energy.Scientists make a person feel invisibleIt should be noted that by changing the polarization nanoanten cloak again becomes visible along with the object it covers.According to the publication, the scientists had to work with the objects of microscopic dimensions, as is still not arranged production nanoantenna enough to create a large number of prototype cloak.However, in the end, experimenters have succeeded in the most important – in the creation and testing of the technology.Previously, using light scattering paint a German scientist was partly carry out the reconstruction of invisibility . Photo: Staffan Larsson

Genius invented a new method of extraction electricity

Having won the national stage of the Intel ISEF 2015 international competition for scientific and technical creativity of schoolchildren, Samuil Kruhliak, 10th-grade student from Oleksandria (Kirovohrad oblast), had earned his entry to the Genius Olympics that was held in Oswego, NY from 14 to 19 June. And he took advantage of his opportunity to see the world and be seen to the fullest, winning the bronze prize and outsmarting two thousand young inventors from around the world. Kruhliak’s project is named “Getting electricity from the atmosphere.” The young inventor proposes to produce electricity from the air – or, rather, from the atmosphere using artificial ionized clouds generated by a strong electric field of an ionizing tower. An estimated, one kilowatt of electricity will cost as much as 0.03 hryvnias. According to the boy, he saw his invention in a dream when he was in the eighth grade. After two years of research, the teachers of Junior Academy of Sciences Svitlana Piskova and Serhii Kaminsky helped to implement this project. “Samuil’s work is a new word in the energy sector. That’s just a pity that here in Ukraine the boy has got his attention only following his victory in New York. Before this we turned for support to our local authorities, to the regional, we trumpeted this money- and electricity-saving invention across the entire Ukraine, but no one has paid any attention to us. Samuil had a great idea, and the scientific consultants helped in building the device. We have attracted a large number of specialists – a laboratory of Minor Academy of Sciences in Kyiv provided the basis for experiments. Mini model of the device had been already set up in Kyiv lab, it works and shows its results,” said Svitlana Piskova, the section supervisor of the scientific and technical creativity, invention, and environmentally friendly technologies of Minor Academy of Sciences for Learning Youth. According to her, the invention provides for the extraction of not only electricity, but also water. “This installation would cost pennies, but the benefit from it is millions. Imagine: if we manage to run it we could provide 82 percent of electricity for Kirovohrad oblast. It’s a pity no one needs it here,” adds Piskova. The second phase of the project is going to be implemented in Oleksandria, where the abandoned pipe of a thermoelectric plant can be used to build the generator tower, but this requires substantial funds from sponsors. Apart from his diploma, Kruhliak has been awarded free education at one of the US universities and a monthly stipend of about 700 dollars.