Experience with a heated glass. Fun physical experience at home

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

Experience with a heated glass. Physical experiments

Entertaining experiments in physics

Entertaining experiences at home / Physics experiments for children

Warm the glass well (gradually so that it does not burst) with boiling water and lower it, as in last time, upside down in a plate, but with hot water. The hotter the water, the better for our experience.

Do not forget to put a cork on the water, which should get inside the glass. At first glance, everything is the same as last time. The bottom of the plate, where the glass stands, is also almost without water. The only difference is that the inner surface of the glass is fogged up from hot water. Leave now for a long time a plate with water and a glass, until it all cools down well.

When the water and the glass finally cool down, you will see that the water inside the glass, along with the stopper, has risen above the level of the water in the plate. The air in the glass cooled down, shrunk, began to take up less space, and the external atmospheric pressure drove water from the plate into the glass.

Hot glass experiment

A similar experience can be done in the kitchen when you are washing the dishes. If you rinse the glass jar well, first with warm and then hot water and, turning it over, leave it on the oilcloth, then after a while, when the jar has completely cooled down, you will see that it has stuck quite firmly to the oilcloth.

You need to make some effort to tear the jar from the oilcloth. The air inside the jar cooled down, its volume decreased, and the external atmospheric pressure pressed the wet oilcloth against the jar.

Author: Rabiza F.V.

We recommend interesting experiments in physics:

▪ Enemy of magnetism

▪ What's stopping you from falling?

▪ Helicopter in reverse

We recommend interesting experiments in chemistry:

▪ Chromatography at home

▪ Dry cleaning - stain removal by adsorption

▪ green flame

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

Headphones that can self-disinfect 13.04.2020

Philips followed one of the main trends in the electronics market in recent years and also released fully wireless headphones - Philips ActionFi. Unlike other gadgets of this class, the novelty received an extremely unusual disinfection function.

The complete case provides a built-in ultraviolet lamp that destroys bacteria and other microscopic enemies of mankind. So using Philips headphones will help you avoid ear infections. The headphones themselves have received a protected design that meets the IPX5 certification, which means that Philips ActionFit is not afraid of water jets, but they still will not survive immersion in liquid.

The headphones are based on 6 mm drivers capable of reproducing frequencies ranging from 20 Hz to 20 kHz. Philips ActionFit can last up to 6 hours on a single charge. If you periodically recharge the gadget in a case, the novelty is able to provide up to 18 hours of battery life. Fast charging is also provided - 15 minutes in the case is enough for 1,5 hours of playback.

Other interesting news:

▪ martian flood

▪ Integration of electric vehicles with the home power system

▪ Raven is not inferior to primacy in mental abilities

▪ Four inches for players

▪ Triple video driver IC FMS6418A

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site History of technology, technology, objects around us. Article selection

▪ article Help with foreign bodies entering organs and tissues. Occupational Safety and Health

▪ article Which country first had a flag? Detailed answer

▪ article A sawmill machine operator and an operator on automatic and semi-automatic lines in woodworking, engaged in cutting boards and sheet materials. Standard instruction on labor protection

▪ article Adapter for microcontroller AT89C52-24JC. Encyclopedia of radio electronics and electrical engineering

▪ article Comparative characteristics of AA galvanic elements. 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