Menu English Ukrainian russian Home

Free technical library for hobbyists and professionals Free technical library


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

Dry from water. Physical experiments

Entertaining experiments in physics

Entertaining experiences at home / Physics experiments for children

Comments on the article Comments on the article

Place a coin on a flat plate and pour some water over it. The coin will be underwater. Now invite a friend to take the coin with his bare hand, without wetting his fingers and without pouring water from the plate. He hardly knows how to do it.

And the trick is that the water must be sucked off. But not by mouth, of course. After all, it is not known where this coin was lying, in what hands it was.

Dry out of the water

Take a thin glass, rinse it with boiling water and tip it on a plate next to the coin. Now watch what happens. The air in the glass will begin to cool. And you've probably already heard that cold air takes up less space than hot air.

One way or another, the glass, like a medical blood-sucking jar, will begin to absorb water, and soon all of it will gather under it. Now wait for the coin to dry and take it without fear of getting your fingers wet!

Author: Galpershtein L.Ya.

 We recommend interesting experiments in physics:

▪ Ball in a different role

▪ Some more experiments with inertia

▪ Animated pieces of iron

 We recommend interesting experiments in chemistry:

▪ How much vitamin C in an apple?

▪ Washing in hard and soft water

▪ How to distinguish between plus and minus batteries

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

Roll call in the operating room 23.07.2009

The so-called pre-flight check has long become a tradition among pilots all over the world: the pilot reads out a list of components, assemblies and instruments, and the mechanic reports on the condition of each. Only after that you can start the engines and take to the air.

Hospitals in eight countries (Canada, USA, New Zealand, UK, Philippines, India, Tanzania and Jordan) introduced the same procedure before surgery as an experiment.

The World Health Organization compiled a list of 19 items. They check aloud the name of the patient and the name of the scheduled operation, the presence of all medical staff, the presence and condition of tools, equipment and medicines ...

After the operation, the presence of all instruments is checked again. The new procedure was applied to 7600 operations. As a result, the mortality of patients fell by half, and the frequency of complications decreased by 36%.

Other interesting news:

▪ Black hole for microwaves

▪ Antiseptic from water

▪ Casio watch in the style of the series Stranger Things

▪ Scavenger robot

▪ Magnetic monopoles in a cold quantum gas medium

News feed of science and technology, new electronics

 

Interesting materials of the Free Technical Library:

▪ section of the site Intercoms. Article selection

▪ article by Ramana Maharshi. Famous aphorisms

▪ article Which marsupials do not have a bag? Detailed answer

▪ article Podbel ordinary. Legends, cultivation, methods of application

▪ article Overheating indicator. Encyclopedia of radio electronics and electrical engineering

▪ article Electrocoward. physical experiment

Leave your comment on this article:

Name:


Email (optional):


A comment:





All languages ​​of this page

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

www.diagram.com.ua

www.diagram.com.ua
2000-2024