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Science station on skis

13.08.2010

Since 1956, the British Antarctic station "Halley" has been operating in Antarctica, on the Brunt ice shelf.

It was the employees of this station in 1985 who discovered the ozone hole in the sky over Antarctica. For half a century, five buildings of the station had to be replaced. Firstly, the structures are constantly covered with snow, and secondly, the glacier slides into the sea at a speed of up to 700 meters per year.

The sixth building of the station under the same name is currently under construction. It will consist of eight modules placed on skis, which will allow them to be pulled from the edge of the glacier by a tractor from time to time.

The modules are being built in Cape Town (South Africa) and delivered to the site by the Russian vessel Igarka. When construction is completed in 2012, 70 scientists will be able to work at the station instead of 120.

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Latest news of science and technology, new electronics:

Artificial leather for touch emulation 15.04.2024

In a modern technology world where distance is becoming increasingly commonplace, maintaining connection and a sense of closeness is important. Recent developments in artificial skin by German scientists from Saarland University represent a new era in virtual interactions. German researchers from Saarland University have developed ultra-thin films that can transmit the sensation of touch over a distance. This cutting-edge technology provides new opportunities for virtual communication, especially for those who find themselves far from their loved ones. The ultra-thin films developed by the researchers, just 50 micrometers thick, can be integrated into textiles and worn like a second skin. These films act as sensors that recognize tactile signals from mom or dad, and as actuators that transmit these movements to the baby. Parents' touch to the fabric activates sensors that react to pressure and deform the ultra-thin film. This ... >>

Petgugu Global cat litter 15.04.2024

Taking care of pets can often be a challenge, especially when it comes to keeping your home clean. A new interesting solution from the Petgugu Global startup has been presented, which will make life easier for cat owners and help them keep their home perfectly clean and tidy. Startup Petgugu Global has unveiled a unique cat toilet that can automatically flush feces, keeping your home clean and fresh. This innovative device is equipped with various smart sensors that monitor your pet's toilet activity and activate to automatically clean after use. The device connects to the sewer system and ensures efficient waste removal without the need for intervention from the owner. Additionally, the toilet has a large flushable storage capacity, making it ideal for multi-cat households. The Petgugu cat litter bowl is designed for use with water-soluble litters and offers a range of additional ... >>

The attractiveness of caring men 14.04.2024

The stereotype that women prefer "bad boys" has long been widespread. However, recent research conducted by British scientists from Monash University offers a new perspective on this issue. They looked at how women responded to men's emotional responsibility and willingness to help others. The study's findings could change our understanding of what makes men attractive to women. A study conducted by scientists from Monash University leads to new findings about men's attractiveness to women. In the experiment, women were shown photographs of men with brief stories about their behavior in various situations, including their reaction to an encounter with a homeless person. Some of the men ignored the homeless man, while others helped him, such as buying him food. A study found that men who showed empathy and kindness were more attractive to women compared to men who showed empathy and kindness. ... >>

Electronic helmet for truck drivers 14.04.2024

Road safety, especially for drivers of heavy construction equipment, is a top priority for engineers and scientists. In light of this, the German Fraunhofer Institute for Structural Strength and System Reliability has introduced a new product - an electronic helmet, which is designed to protect drivers from serious injury when driving construction vehicles. A new electronic helmet developed by a team of engineers from the Fraunhofer Institute opens up new perspectives for the safety of truck and construction equipment drivers. The device is capable of monitoring the level of shaking in the car cabin and warning the driver of possible danger. The basis of the helmet's operation is a built-in piezoelectric sensor, which generates electricity during physical deformation. This mechanism allows the device to respond to intense vibrations typical of construction equipment. When the level of deformation exceeds safe values, an alarm system is activated on the helmet, ... >>

Antivitamins instead of antibiotics 13.04.2024

The problem of bacterial resistance to antibiotics is becoming increasingly serious, posing a threat to the effective treatment of infections. In light of this, researchers are looking for new ways to combat superbugs. One of the promising directions is the use of antivitamins that can have an antibacterial effect. Antivitamins, although known as the opposite of vitamins, have proven to be a promising tool in the fight against bacterial antibiotic resistance. A study conducted by scientists from the University of Göttingen in Germany confirmed their potential in creating new drugs to combat dangerous infections. With the rise of antibiotic-resistant superbugs, there is a need to find alternative treatments. Antivitamins are molecules similar to vitamins, but capable of inhibiting bacterial activity without harm to the human body. At the moment, science knows only three antivitamins: rose ... >>

Random news from the Archive

High-voltage ultra-bright LED drivers from IR 18.06.2007

Possible applications for these drivers are architectural and decorative lighting, color music, outdoor and indoor signaling. The 200V and 600V rated IRS254x series includes a hysteresis step-down regulator with a delay to control the average current to within 5% accuracy based on an accurate estimate of the difference between the current voltage and the maximum allowable voltage.

An external high-level bootstrap circuit controls the operation of the key flyback stage at frequencies up to 500 kHz. The low level driver is used when the synchronous rectifier is running. The IRS254x series ICs compensate for variations in LED parameters to implement control devices with improved accuracy and high internal stability.

The new ICs provide a micro-power start mode with less than 500 uA consumption and a 140 nsec switching pause. Other features of the new drivers are restart mode, latchless shutdown, PWM dimming capabilities. The ICs are available in compact 8-pin lead-free DIP and SOIC packages. Delivery of devices on a tape is possible.

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