Menu English Ukrainian russian Home

Free technical library for hobbyists and professionals Free technical library

Free library / Directory / Spectacular tricks and their clues

Tricky pins. Focus secret

Spectacular tricks and their clues

Directory / Spectacular tricks and their clues

Comments on the article Comments on the article

Focus Description:

You take out two pins from your pocket, open one of them, put the second one on it and close the first one. Emphasize that you can separate the pins only by opening one of them. Next, take both pins by the ends opposite the locks, and effortlessly separate without opening. Put both pins in your pocket.

Focus secret:

One of the pins needs to be dissected.

Focus Tricky Pins

Insert the point of this pin into the head and solder it there. Cut the same wire almost at the very spring. When you connect the pins together, you open the unprepared pin. Then take both pins by the springs and, under the cover of your fingers, bring out a regular pin through the prepared incision. Just in case, it is advisable to have another unprepared pin with you.

 We recommend interesting articles Section Spectacular tricks and their clues:

▪ The balloon pops when needed.

▪ Comparison of the number of cards of black and red suit

▪ Glass and coin

See other articles Section Spectacular tricks and their clues.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

The speech of sperm whales is similar to that of humans 18.05.2024

In the world of the ocean, where the mysterious and unknown coexists with the studied, sperm whales, with their huge brains, are of particular interest to science. Researchers, working with a huge array of audio recordings collected during the Dominica Sperm Whale Project (DSWP) - more than 8000 recordings, seek to unravel the secrets of their communication and understand the structure and complexity of the language of these mysterious creatures. By studying in detail the recordings of 60 sperm whales in the eastern Caribbean, scientists have revealed surprising features of their communication, revealing the complexity of their language. "Our observations indicate that these whales have a highly developed combinatorial communication system, including rubato and ornaments, which indicates their ability to quickly adapt and vary during communication. Despite significant differences in evolution, sperm whales have elements in their communication that are characteristic of human communication," says Shane Gero, a biologist at Carleton University and director of the CETI project. Issl ... >>

Electron spin for quantum information transfer 18.05.2024

The transfer of quantum information remains one of the key tasks of modern science. Recent advances in the use of electron spin to expand the capabilities of information transfer in quantum systems have become very important. Researchers at Lawrence Berkeley National Laboratory are pushing the frontiers of quantum information science by experimenting with the possibilities of electron spin. Electron spin, a natural quantum bit, is a potentially powerful means for storing and transmitting information in quantum systems. Magnon wave packets, collective excitations of electron spin, have revealed their potential to transmit quantum information over significant distances. The work of Berkeley Lab researchers has revolutionized the way such excitations propagate in antiferromagnets, opening up new prospects for quantum technologies. Using pairs of laser pulses, scientists disrupted antiferromagnetic order in one place and simultaneously studied it in another, creating ... >>

Sound-absorbing silk 17.05.2024

In a world where noise is becoming increasingly intrusive, the emergence of innovative materials that can reduce its impact is of great interest. MIT researchers have unveiled a new sound-absorbing silk fabric that promises to revolutionize quiet spaces. The Massachusetts Institute of Technology (MIT) has made significant breakthroughs in the field of sound absorption. Researchers have developed a special silk fabric that can effectively absorb sound and create cozy, quiet environments. The fabric, thinner than a human hair, contains a unique vibrating fiber that is activated when voltage is applied to it. This feature allows the fabric to be used to suppress sound waves in two different ways. The first method uses fabric vibrations to generate sound waves that cover and cancel out unwanted noise, similar to noise-canceling headphones. This p ... >>

Random news from the Archive

Mass of the lightest neutrino calculated 01.09.2019

Scientists from the UK, Brazil and France have for the first time set an upper limit on the particle mass of the lightest kind of neutrino. It is 0,086 electron volts, which is about six million times less than the mass of an electron.

Neutrinos are elementary particles that have a super-strong throughput (hundreds of billions of neutrinos fly through your body in one second), but interact very weakly with ordinary matter - that's why they are so hard to catch. Science knows three types of these "ghostly" particles: electron, muon and tau neutrinos. Neutrinos of one kind can transform into other kinds. This process is called neutrino oscillation, and it is possible due to the fact that these particles have a non-zero mass.

It is calculated that the maximum mass of the lightest neutrino is 0,086 electron volts (about 1,5 x 10-37 kilograms), and the combined mass of the "cocktail" of three types of neutrinos does not exceed 0,26 electron volts. The researchers were able to obtain such numbers by analyzing a large amount of data. They combined information from experiments in particle accelerators and nuclear reactors with observations of cosmic microwave background radiation and exploding stars. They also used data from a spectroscopic study of baryon oscillations to measure the expansion rate of the universe. The data of cosmological observations allowed scientists to make more accurate calculations, since a non-zero neutrino mass can influence the results of these studies.

Understanding how much a neutrino weighs is important for future cosmological studies such as DESI and Euclid, whose mission is to accurately measure the acceleration of the expansion of the universe in order to better understand the geometry of dark matter and dark energy.

Other interesting news:

▪ Handwriting device

▪ Worst year in human history

▪ Xiaomi Mijia Braun Waterproof Electric Shaver

▪ EcoBlade smart energy storage system from Schneider Electric

▪ Silicon retains conductivity at ultra-low charge levels

News feed of science and technology, new electronics


Interesting materials of the Free Technical Library:

▪ section of the site Signal limiters, compressors. Article selection

▪ Article Customs. Crib

▪ article What is integration? Detailed answer

▪ article Care of patients with chills, fever. Health care

▪ article Impulse finder of the place of damage of the communication line. Encyclopedia of radio electronics and electrical engineering

▪ article Switching voltage stabilizer. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:


Email (optional):

A comment:

All languages ​​of this page

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