The simplest barometer. Drawing, description

CHILDREN'S SCIENTIFIC LABORATORY
Free library / Directory / Children's Science Lab

The simplest barometer. Children's Science Lab

Children's Science Lab

Such a barometer can be made from a small tin oil can with parallel sides.

The simplest barometer

Pick up a cork that tightly closes the only hole of the future barometer. Before you put the cork in place, you need to make a hole in it of such a diameter that you can pass a transparent tube-straw for cocktails through it. However, it is better to use a glass tube with an inner hole diameter of 1,5 - 2,0 mm.

The container is 2/3 filled with tinted water, a tube with a stopper is inserted into the hole, while the tube should contain a little of the same tinted water. As atmospheric pressure rises, the liquid level in the tube will rise, and vice versa.

Fix such a barometer on a stand with a vertical ruler. You can calibrate it by taking readings from a real barometer.

Instead of a metal container, you can use any small glass bottle. After filling with tinted water and fitting the stopper with the tube, add some water to the tube. Since the body of the barometer is rigid, when the pressure increases, the water level will decrease, and when it decreases, it will rise.

We recommend interesting articles Section Children's Science Lab:

▪ listening to the ocean

▪ Waddling engine

▪ Lightning on the table

See other articles Section Children's Science Lab.

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

Display for the blind 28.06.2002

The Osaka Central Library has the world's first monitor for the blind, developed by Japanese scientists from the KJS Corporation in cooperation with the Japanese National Space Administration.

The monitor screen is a standard 14-inch liquid crystal surface equipped with more than 3000 1,6 mm diameter plastic raised dots. A tactile display will allow visually impaired people to understand any previously inaccessible visual information.

Other interesting news:

▪ edible batteries

▪ Slug stats

▪ WD Passport Pocket external hard drive

▪ Plant Census of China

▪ Panasonic Lumix S5

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ site section Electric meters. Article selection

▪ article by Neil deGrasse Tyson. Famous aphorisms

▪ article How did a chicken from England cause a panic about the imminent end of the world? Detailed answer

▪ article Fragrant tar. Legends, cultivation, methods of application

▪ article Theatrical make-up. Simple recipes and tips

▪ article Application of tunnel diodes. 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