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New solar panel efficiency record

19.12.2014

Scientists from the University of New South Wales (Australia) have managed to radically increase the efficiency of solar panels.

The efficiency of solar cells currently used does not exceed 25%, and with the help of technology developed by Australian researchers, 40% of sunlight was converted into electricity. The record-breaking efficiency of solar cells was achieved using innovative optical filters that only allow light of a certain wavelength to pass through. Thanks to this, the panels received more light, which has already been confirmed by tests on the streets of Sydney.

The technique is also being used to improve the efficiency of solar arrays in photovoltaic towers, which are gaining popularity in Australia. Such a tower is surrounded by mirrors that reflect solar energy and focus it on an energy receiver consisting of photovoltaic cells.

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Latest news of science and technology, new electronics:

Traffic noise delays the growth of chicks 06.05.2024

The sounds that surround us in modern cities are becoming increasingly piercing. However, few people think about how this noise affects the animal world, especially such delicate creatures as chicks that have not yet hatched from their eggs. Recent research is shedding light on this issue, indicating serious consequences for their development and survival. Scientists have found that exposure of zebra diamondback chicks to traffic noise can cause serious disruption to their development. Experiments have shown that noise pollution can significantly delay their hatching, and those chicks that do emerge face a number of health-promoting problems. The researchers also found that the negative effects of noise pollution extend into the adult birds. Reduced chances of reproduction and decreased fertility indicate the long-term effects that traffic noise has on wildlife. The study results highlight the need ... >>

Wireless speaker Samsung Music Frame HW-LS60D 06.05.2024

In the world of modern audio technology, manufacturers strive not only for impeccable sound quality, but also for combining functionality with aesthetics. One of the latest innovative steps in this direction is the new Samsung Music Frame HW-LS60D wireless speaker system, presented at the 2024 World of Samsung event. The Samsung HW-LS60D is more than just a speaker system, it's the art of frame-style sound. The combination of a 6-speaker system with Dolby Atmos support and a stylish photo frame design makes this product the perfect addition to any interior. The new Samsung Music Frame features advanced technologies including Adaptive Audio that delivers clear dialogue at any volume level, and automatic room optimization for rich audio reproduction. With support for Spotify, Tidal Hi-Fi and Bluetooth 5.2 connections, as well as smart assistant integration, this speaker is ready to satisfy your ... >>

A New Way to Control and Manipulate Optical Signals 05.05.2024

The modern world of science and technology is developing rapidly, and every day new methods and technologies appear that open up new prospects for us in various fields. One such innovation is the development by German scientists of a new way to control optical signals, which could lead to significant progress in the field of photonics. Recent research has allowed German scientists to create a tunable waveplate inside a fused silica waveguide. This method, based on the use of a liquid crystal layer, allows one to effectively change the polarization of light passing through a waveguide. This technological breakthrough opens up new prospects for the development of compact and efficient photonic devices capable of processing large volumes of data. The electro-optical control of polarization provided by the new method could provide the basis for a new class of integrated photonic devices. This opens up great opportunities for ... >>

Primium Seneca keyboard 05.05.2024

Keyboards are an integral part of our daily computer work. However, one of the main problems that users face is noise, especially in the case of premium models. But with the new Seneca keyboard from Norbauer & Co, that may change. Seneca is not just a keyboard, it is the result of five years of development work to create the ideal device. Every aspect of this keyboard, from acoustic properties to mechanical characteristics, has been carefully considered and balanced. One of the key features of Seneca is its silent stabilizers, which solve the noise problem common to many keyboards. In addition, the keyboard supports various key widths, making it convenient for any user. Although Seneca is not yet available for purchase, it is scheduled for release in late summer. Norbauer & Co's Seneca represents new standards in keyboard design. Her ... >>

The world's tallest astronomical observatory opened 04.05.2024

Exploring space and its mysteries is a task that attracts the attention of astronomers from all over the world. In the fresh air of the high mountains, far from city light pollution, the stars and planets reveal their secrets with greater clarity. A new page is opening in the history of astronomy with the opening of the world's highest astronomical observatory - the Atacama Observatory of the University of Tokyo. The Atacama Observatory, located at an altitude of 5640 meters above sea level, opens up new opportunities for astronomers in the study of space. This site has become the highest location for a ground-based telescope, providing researchers with a unique tool for studying infrared waves in the Universe. Although the high altitude location provides clearer skies and less interference from the atmosphere, building an observatory on a high mountain poses enormous difficulties and challenges. However, despite the difficulties, the new observatory opens up broad research prospects for astronomers. ... >>

Random news from the Archive

Aerodynamic bike 02.10.2016

For those who are not familiar with cycling, it is hard to imagine how many different organizations are involved in record keeping on a bicycle. Among them are the International Cycling Union, the International Olympic Committee, the Guinness Book of Records, the World Association of Human Propulsion Vehicles and the International Association of Human Propulsion Vehicles. The latter organization, in particular, holds competitions for the world speed record among human-powered vehicles.

This year the competition took place in Battle Mountain (Nevada, USA). The challenge was to break the world record set last year by Canada's AeroVelo team with an aero-shell bike called the Eta, derived from the Greek letter "eta". Last year's record was 139,21 km/h, but this year the same Aerobicycle managed to increase the speed to 144,17 km/h and set a new world record.

In order to achieve the speed of 88 miles per hour and, as known from the movie "Back to the Future" (of which Canadian engineers are fans), necessary for "time travel", "Eta" is enclosed in a special shell that creates a laminar boundary layer, but even a small insect can cause turbulence and seriously disrupt the aerodynamics of the apparatus. And so it happened during the preliminary races - Aerovelo could not overcome the mark of 80 miles per hour, after which it turned out that the bug smeared on the bow was to blame.

The AeroVelo team is no stranger to records. Before the Eta device, its participants built a Bluenose bike similar to it, which accelerated in 2012 to a speed of 125 km / h. And a year later, their Atlas helicopter won the $250 Sikorsky Prize for flying 000 seconds at 64,11 meters solely due to the efforts of the pedaling pilot.

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