Free technical library. Articles from the magazine Technique

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Contents of journals with annotations / Magazine Technique - Youth

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Magazine Technique - Youth

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Alphabetical list articles with annotations, from journals published in 2005 in the journal Technique - Youth:

3D displays: a breakthrough in the Z dimension

high definition DVD

GSM tomorrow

N-dimensional space

SONY focuses on emotionality

Will Zoltan Lozonka's generator work?

Archimedes-2005 recommends

Astro vacation by the sea

Attack robots

There is no flywheel without takeoff!

Without a bottom, but with a tire

Unknown builders of the University. I. V. Stalin

Biomechatronic Man

War chariots of ancient Egypt

Battle near Krasnoye Selo

Diver armor

Paper all endure

Was Kolka's retirement predictable?

Visiting the fish

Introduce and reinforce something in something!

Vegetarianism in the United States as a means of combating hunger

All-terrain vehicle of the XXI century

Screw broke the sound barrier!

Vortex liquid heaters: creative cavitation

Whirlwinds: cold from heat, heat from cold - natural processes

Vladikavkaz Pacific

Attention, air

The return of the giants?

Air rover

New generation air carrier

Magical world of love to the stars

Forward and only in a straight line!

Stupidity, negligence and selfishness

Grace Murray Hopper, programmer and admiral

The XNUMXD revolution is coming

Two rings, two ends, and in the middle

Decapods

The life story of William Willet

The case of the printing press

Groundhog Day

Helicopter disc wing

For wet and dry diving

To rescue submariners

A long-awaited and unexpected surprise

iron gladiators

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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

Biohybrid fish from human heart cells 17.02.2022

Researchers at Harvard University and Emory University (USA) have developed the first fully autonomous biohybrid fish from heart muscle cells derived from human stem cells. Artificial fish swims, recreating the muscle contractions of the heart, according to the press service of the Harvard School of Engineering and Applied Sciences. John A. Paulson.

The first self-contained biohybrid device is made from cardiomyocytes (heart muscle cells) derived from human stem cells. It mimics the shape and movements of the zebrafish. Unlike previous devices - a biohybrid jellyfish and an artificial ray made from rat heart cells - the biohybrid zebrafish has two layers of muscle cells, one on each side of the tail fin. When one side is compressed, the other is stretched. In response to the stretch, a protein channel opens, causing a contraction that triggers the stretch, and so on. A closed cycle is created, thanks to which the fish can move for more than 100 days.

The researchers have also developed a self-contained pacing unit, similar to a pacemaker, that controls the rate and rhythm of these spontaneous contractions. Together, the two layers of muscle and the autonomous stimulation node allowed for continuous, spontaneous and coordinated forward and backward movements of the fins.

Biohybrid fish only get better with age. The amplitude of muscle contractions, maximum swimming speed and muscle coordination increased during the first month as cardiomyocyte cells matured. Eventually, biohybrid fish achieved the same swimming speed and efficiency as zebrafish in the wild.

The development brings researchers closer to creating a more sophisticated artificial muscle pump and provides a model for studying heart conditions such as arrhythmia.

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