When the lens stops working. Fun physical experience at home

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

When the lens stops working. Physical experiments

Entertaining experiments in physics

Entertaining experiences at home / Physics experiments for children

A lens will cease to magnify if it is surrounded by the same substance from which it is made.

Take a glass of water and look through it at the button on the other side of the glass. The button will turn out to be enlarged and flattened from top to bottom. Rather, the button is not exactly flattened from top to bottom, it is rather stretched to the right and left. After all, the increase occurred only in the horizontal direction, so it is stretched horizontally. Now lower the button into a basin of water, put it on the bottom. Immerse a glass in water and, holding it horizontally, look at how the button looks. Although the glass is filled with water, it has ceased to increase: you will see the button not enlarged and not flattened, as it was at the beginning of the experiment. Just at the bottom of the pelvis lies a button of normal size. This means that our cylindrical lens has ceased to function. Now close the opening of the glass with your hand so that the water does not spill out of it, and slightly lift it out of the water. The lens immediately begins to increase again.

This experiment can be done in a smaller version, using the small cylindrical lens that you made for the previous experiment. Take a large cup or bowl into which you can submerge a small cylindrical lens. The object for observation will be a pushpin placed on the bottom of a cup of water.

But a diverging lens, if it is also lowered into water, not only will it not stop reducing the object in question, but will turn into two divergent lenses facing each other with their concave sides. Only a bubble of air will separate them. When conducting this experiment, the air bubble should be small and as round as possible.

Author: Rabiza F.V.

We recommend interesting experiments in physics:

▪ vortex rings

▪ Bird's trick

▪ blowgun

We recommend interesting experiments in chemistry:

▪ Dry-cleaning

▪ Gum and its dissolution

▪ Make your clothes waterproof

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

Robots have been taught to smell 22.01.2023

The developers of Tel Aviv University taught the works to smell with the help of a biological sensor. The sensor sends electrical signals in response to the presence of an odor nearby, which the robot can detect and interpret.

This biological and technological breakthrough was made by doctoral student Nata Shvil from the Sagol School of Neurology at Tel Aviv University, Dr. Ben Maoz from the Fleishman Department of Engineering and the Sagol School of Neurology, and Prof. Yossi Yovel and Prof. Amir Ayali from the Sagol School of Zoology and the School of Neuroscience.

The developers have created a platform in which biological sensors and electronics are integrated. It allows you to use the biological nose in a certain place using an electronic device. Locust antennae are used as a biological sensor.

Scientists have made an autonomous chassis with artificial intelligence and sensors. The algorithm learned to recognize eight "pure" smells, including geranium, lemon and marzipan, plus two mixtures of different smells. At the same time, the sensitivity of the hybrid "nose" turned out to be 10 times greater than that of modern specialized odor analyzers.

According to the developers, one day their platform will be able to find drugs, explosives and more.

Other interesting news:

▪ Microsoft HoloLens Augmented Reality Glasses for Surgeons

▪ AMD Trinity APUs

▪ Artificial meteor showers

▪ Operational amplifiers STMicroelectronics TSX561, TSX562, TSX564

▪ Snails will eat England

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Palindromes. Article selection

▪ article If there is a person - there is a problem, if there is no person - there is no problem. Popular expression

▪ Why are Detroit Red Wings fans throwing octopuses onto the ice? Detailed answer

▪ article Forest reed. Legends, cultivation, methods of application

▪ article High-voltage power supply (for Chizhevsky's chandelier). Encyclopedia of radio electronics and electrical engineering

▪ article Riddles about nature

Leave your comment on this article:

All languages of this page

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