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Reference book crossword. Quick word search by mask. Corneille. Artworks
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(3)
SID - tragicomedy
(4)
LIAR - comedy
OTON - tragedy
Oedipus - tragedy
(5)
MEDEA - tragedy
(7)
HORATIUS - tragedy
NYCOMED - tragedy
(8)
PERTARIT - tragedy
RODOGUNA - tragedy
Sertorius - tragedy
SUBRETA - comedy
(9)
SOPHONISBA - a tragedy
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Latest news of science and technology, new electronics:
Machine for thinning flowers in gardens
02.05.2024
In modern agriculture, technological progress is developing aimed at increasing the efficiency of plant care processes. The innovative Florix flower thinning machine was presented in Italy, designed to optimize the harvesting stage. This tool is equipped with mobile arms, allowing it to be easily adapted to the needs of the garden. The operator can adjust the speed of the thin wires by controlling them from the tractor cab using a joystick. This approach significantly increases the efficiency of the flower thinning process, providing the possibility of individual adjustment to the specific conditions of the garden, as well as the variety and type of fruit grown in it. After testing the Florix machine for two years on various types of fruit, the results were very encouraging. Farmers such as Filiberto Montanari, who has used a Florix machine for several years, have reported a significant reduction in the time and labor required to thin flowers.
... >>
Advanced Infrared Microscope
02.05.2024
Microscopes play an important role in scientific research, allowing scientists to delve into structures and processes invisible to the eye. However, various microscopy methods have their limitations, and among them was the limitation of resolution when using the infrared range. But the latest achievements of Japanese researchers from the University of Tokyo open up new prospects for studying the microworld. Scientists from the University of Tokyo have unveiled a new microscope that will revolutionize the capabilities of infrared microscopy. This advanced instrument allows you to see the internal structures of living bacteria with amazing clarity on the nanometer scale. Typically, mid-infrared microscopes are limited by low resolution, but the latest development from Japanese researchers overcomes these limitations. According to scientists, the developed microscope allows creating images with a resolution of up to 120 nanometers, which is 30 times higher than the resolution of traditional microscopes. ... >>
Air trap for insects
01.05.2024
Agriculture is one of the key sectors of the economy, and pest control is an integral part of this process. A team of scientists from the Indian Council of Agricultural Research-Central Potato Research Institute (ICAR-CPRI), Shimla, has come up with an innovative solution to this problem - a wind-powered insect air trap. This device addresses the shortcomings of traditional pest control methods by providing real-time insect population data. The trap is powered entirely by wind energy, making it an environmentally friendly solution that requires no power. Its unique design allows monitoring of both harmful and beneficial insects, providing a complete overview of the population in any agricultural area. “By assessing target pests at the right time, we can take necessary measures to control both pests and diseases,” says Kapil ... >>
Random news from the Archive The invisibility cloak is almost ready
11.02.2012
Physicists from the University of Texas at Austin have taken another step towards the invisibility cloak - they were able to hide an 18-centimeter cylinder from observation, and it was impossible to see it at any viewing angle.
Since the coating also has a cylindrical shape, journalists have already called the device "invisible tube". True, while this tube operates only in the microwave range, in ordinary light the "invisibility" created by it disappears.
Perhaps the most important thing in this achievement is a completely new approach to hiding the item. If the former "proto-invisibility cloaks" were based on transformational metamaterials that do not exist in nature, with a very complex structure, which do not reflect the light falling on them, but force it to go around the hidden object, then a completely different mechanism and other materials work here.
It is based on the so-called plasmonic metamaterials (plasmons are quasi-particles, wave clusters in the crystal lattice, behaving like an independent particle). Their main feature in application to the physics of invisibility is that they scatter light differently from ordinary ones. If you make a mirror out of them, a person will see in it not his own reflection, but a negative. If you surround an object with such material (and, as it turns out, of any shape), then the light scattered by the object and the light scattered by the plasmon screen will destroy each other when they meet. Which was demonstrated in the experiment of the Texas group, and then published in the New Journal of Physics.
Professor Andrea Alu, who is leading the study, believes that plasmonic materials are much better suited to create invisibility than the metamaterials used in the past. According to him, they are incomparably more reliable and can operate in a wider light spectrum, although, we recall, the optical range is also not yet available to them. However, there are no physical prohibitions on the visible range, there are only purely technical barriers, therefore, according to Alu, his group is currently trying to expand the capabilities of its "invisible tube", including the ability to extend plasmonic invisibility to visible light.
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