We heat up the needle. Fun physical experience at home

ENTERTAINING EXPERIENCES AT HOME
Directory / Entertaining experiences / Experiments in physics

We heat up the needle. Physical experiments

Entertaining experiments in physics

Entertaining experiences at home / Physics experiments for children

What do you think happens with solids when heated? Gases expand, liquids expand. Probably, and rigid bodies too? Yes, they are expanding too. You have already noticed this in the experiment with heating water. Remember, the water level in the tube first dropped a little? It happened because the bottle expanded. And the bottle is a solid body.

By the way, the expansion of the bottle may be useful to you. Perfume and cologne are often sold in bottles with glass stoppers. These corks are tightly fitted to the neck, ground in, so that the valuable liquid does not evaporate in vain. Sometimes such a cork "sticks" and cannot be opened. What to do? Ask someone who is stronger? The strongman willingly gets down to business. Fuck! The cork breaks - and yet the vial remains closed.

But "the casket just opened." It was enough to hold the neck of the bottle in hot water for a few seconds or gently warm it on a match. The neck would expand and the cork could be removed without effort. Just do not heat too long, otherwise the cork will have time to heat up and expand too!

However, we were going to heat the needle. Cut out from a cork, from a plank, or drank from plywood such a bow, as we have in the picture. Insert the needle with the tip into the whole end of the bow (in the figure - the left one), and freely place the eye on the right, cut off. Pick up another needle, thinner. Its tip should pass through the eye of the first, horizontal needle and even enter the tree by 2-3 mm. This vertical needle will be the arrow of our device. To make her movement more noticeable, stick a second, control one next to it.

We heat the needle

The control needle should be parallel to the arrow needle.

Now heat the horizontal needle on the candle or match. It will lengthen, the eye will crawl to the right and deflect the vertical arrow!

Author: Galpershtein L.Ya.

We recommend interesting experiments in physics:

▪ Foucault pendulum model

▪ Knife can be at the top

▪ Why does a kite fly?

We recommend interesting experiments in chemistry:

▪ Sulfur in egg white

▪ Dry cleaning - stain removal by extraction

▪ Copper battery

See other articles Section Entertaining experiences at home.

Read and write useful comments on this article.

<< Back

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

Intel Tunnel Falls silicon qubit processor 12.06.2023

Intel announced the release of the Tunnel Falls processor, equipped with 12 silicon qubits, and made it available to quantum researchers. Tunnel Falls allows scientists to immediately begin experiments and calculations, instead of wasting time building their own devices. This expands the possibilities of research in the field of the foundations of qubits, quantum dots and the development of new methods for working with multi-qubit devices.

The Tunnel Falls chip is manufactured on 300mm wafers at the Intel D1 factory. This 12-qubit device utilizes Intel's industry-leading transistor manufacturing technologies, including Extreme Ultraviolet Lithography (EUV). Silicon spin qubits encode information (0/1) using the spin (direction of rotation) of the electron. Each qubit is an electronic transistor that can be produced using technology similar to a standard line based on complementary metal-oxide-semiconductor (CMOS).

Through the application of this manufacturing technology, Tunnel Falls achieves high performance, delivering 95% chip yield across the entire wafer, resulting in over 24 working quantum chips per wafer. These chips can be configured from 000 to 4 qubits, which can be isolated or used simultaneously according to the needs of the researchers.

Intel claims that silicon spin qubits are superior to other qubit technologies due to their compatibility with advanced transistors. With dimensions comparable to that of a transistor (approximately 50x50 nm), they are several orders of magnitude smaller than other types of qubits and, according to Nature Electronics, have "the greatest potential for scaling quantum computing."

In an effort to further research into hardware, Intel is actively investigating various parameters such as quantum dot sizes, qubit geometry, and length. In addition, the company is integrating performance testing tools into its chips.

Intel also announced partnerships with several institutions, including the University of Maryland Physical Science Laboratory, the College Park Qubit Collaboratory, the National Quantum Information Science Research Center, and Sandia National Laboratories. These collaborations are aimed at the development of quantum computing. The company plans to make its Intel Quantum Software Development Kit (SDK) version 1.0 available to developers and researchers later this year through the Intel Developer Cloud.

The integration of silicon qubits into the Tunnel Falls processor and their availability to the scientific community is a significant step in the development of quantum computing. This allows researchers to turn to more complex problems, accelerating progress in the field. Quantum computing based on silicon spin qubits is expected to make a significant contribution to science, technology, and solving complex problems that cannot be effectively solved by classical computers.

Other interesting news:

▪ Ultrasonic tweezers move living cells

▪ High Performance Depth Camera

▪ Proved the existence of immortal quantum particles

▪ Contraceptives for kangaroos

▪ JVC TH-A25 - budget home theater in a box

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ site section And then an inventor (TRIZ) appeared. Article selection

▪ article Basic narcotic drugs, their characteristics, signs of consumption. Fundamentals of safe life

▪ article How are ropes made? Detailed answer

▪ Phimosis article. Health care

▪ article Duty Cycle Meter. Encyclopedia of radio electronics and electrical engineering

▪ article Piezo sensor in burglar alarms. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

All languages of this page

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