Free technical library. Articles from the journal Science and Life, 2005

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Journal of Science and Life

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Alphabetical list articles with annotations from journals published in 2005 in the journal Science and Life:

1 1/2 about language

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Cebit-2005 in Hannover. Technologies of the XNUMXst century

Web in reverse, or the Third Generation of the Internet

Automatic transmissions on fire trucks

Agariki

Admiral Kolchak: People, give me people!

Academician Anatoly Derevyanko: immersion in the past

Academician Nikolai Dobretsov: At the crossroads of all worlds

Academician F. Mitenkov: about the atom on land and at sea. Free conversations with an outstanding scientist and designer

Academician Eric Galimov: Who needs moon rocks?

Academician Yuri Trutnev: An endless front of work

Home musical theater acoustics

diamonds under x-ray

Americium and Elodea

Anthropometric surgery

Aroma of Antonovka L. N. Tolstoy

Archival materials about P. P. Anosov

The Spitsbergen archipelago through the eyes of a Norwegian geographer

Banal modern detective

Barberry relatives

bard of history

White case and its epilogue

Biological rhythms of health

Biotechnology at the service of security

Bead checkers

Test tube steak

Benefactor from Vologda

Dishes cabbage

Bulgarian phenomenon. World Champion Veselin Topalov

Brotherhood of Baumans of all generations

Bougainvillea, or the Glorious Name of the Beautiful Tropicana

The future of medicine: biotech or nanotech?

The future of Russian science and technology

The future of ecology - the development of a system for the conservation and management of life on Earth

bukhara cat

Home Appliances

In a long search

In a comet - like a bull's-eye

In the arms of winter

In search of an agama. Notes of a naturalist

In the physics of extreme states, we are still leaders

Russian felt boots

Vernissage of infrared portraits

Spring plot for satin stitch embroidery

news of science

The relationship between science and the market. Two approaches

exploding pants

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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. ... >>

Random news from the Archive

Cheap glowing dosimeter 16.05.2012

With the growing danger of nuclear terrorism and smuggling of radioactive materials, the creation of cheap and simple methods for detecting radiation radiation becomes especially relevant.

Researchers at the Georgia Research Institute have developed a unique substance based on nanoparticles of rare earth elements, halides and oxides that glows in the presence of radioactive materials.

Currently, two types of radiation detectors are widely used: scintillation and solid state. The former are usually based on a single crystal of sodium iodide or a similar material, and the latter are based on semiconductor materials such as germanium. Both technologies can reliably detect gamma rays and subatomic particles emitted by radioactive substances. For example, when gamma rays hit the crystal of a scintillation detector, flashes of light are produced, which are converted into electrical impulses. In solid-state detectors, gamma rays are converted directly into electrical pulses.

For all their advantages, both technologies have significant drawbacks. Thus, scintillation detectors require large, expensive and difficult to manufacture crystals, which, moreover, are fragile and very afraid of moisture. Solid-state detectors are more sensitive, but high-purity germanium single crystals are even more difficult to manufacture, and such detectors can only detect radiation from a short distance. In addition, the temperature of germanium must be very low -200 degrees Celsius, which makes it difficult to use solid-state detectors.

The new composite material is a nanopowder consisting of 20-nm gadolinium and cerium bromide nanoparticles with the addition of silicon and aluminum oxide. It is much easier to make a nanopowder than a large, high-purity single crystal.

Gadolinium effectively absorbs gamma radiation and directs its energy to cerium atoms, which begin to emit light. Thus, the nanopowder acts as an effective scintillator and can replace expensive and difficult to operate modern radiation detectors.

News feed of science and technology, new electronics

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