Tricks with cubes and their solutions. Encyclopedia of tricks

Free technical library

EFFECTIVE FOCUSES AND THEIR CLUES
Free library / Directory / Spectacular tricks and their clues

Spectacular tricks and their clues

Spectacular tricks and their clues

Directory / Spectacular tricks and their clues

Comments on the article

Tricks with cubes:

See other articles Section Spectacular tricks and their clues:

500 interesting experiments in physics and chemistry for children:

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

Electron studies nanostructure 14.01.2006

Swiss scientists have figured out how to study nanostructures with electrons.

The first pocket CD players had four batteries, which were enough for one disc. As a result of painstaking work, materials scientists have reduced energy consumption by fifty times. However, the dynamics of the material at the nanometer level is still not clear to us.

"I don't know who and how will use my device, but I have no doubt that it will help solve this problem," says Professor Benoit Deveaux-Pleedran from the Federal Polytechnic School of Lausanne.

The device for studying nanostructures was made from an electron microscope, into which a gold photocathode 20 nanometers thick was inserted. It is illuminated with an ultraviolet laser, which knocks out electrons from the photocathode at a frequency of 80 million pulses per second. And each of these impulses contains no more than ten electrons. Getting on the sample, the electrons excite it, causing flashes of light, which are recorded by the spectrometer with a resolution of 10 picoseconds.

This device was tested on pyramidal gallium arsenide quantum dots. Each of them contains several nanostructures. Once in the pyramid, the electron gets to the nearest nanostructure, and then moves to a point with a minimum of energy, that is, to the top of the pyramid, from where a light quantum flies out. By the time delay between the electron pulse and the flash of light, one can judge the structure of the pyramid.

"The wide range of electron energies makes it possible to study such semiconductors that cannot be excited by a laser beam, such as diamond or silicon," the scientist says.

Other interesting news:

▪ Gold red and green

▪ Medicines from the tap

▪ Street heating

▪ Advertising poster look counter

▪ Martian soil - radiation protection

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Reference materials. Article selection

▪ article social science. Crib

▪ article Do other planets rotate? Detailed answer

▪ article African foxtail. Legends, cultivation, methods of application

▪ article Operational amplifier tester. Encyclopedia of radio electronics and electrical engineering

▪ article The principle of operation of AON. Encyclopedia of radio electronics and electrical engineering

All languages of this page

Home page | Library | Articles | Website map | Site Reviews