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Children's Science Lab

Directory / Children's Science Lab

Children's Science Lab



Also see sections Entertaining experiments in physics и Entertaining experiments in chemistry

Entertaining experiments in physics




The buoyant force of the liquid



Air pressure












oscillatory motion









Experiments with homemade devices



Jet propulsion



Surface tension force












Center of gravity



Centrifugal force






Entertaining experiments in chemistry

Your first experiences



In the kitchen



Kind with healthy



Testing the theory



Chemical tricks



Chemistry at home



Latest news of science and technology, new electronics:

Sound-absorbing silk 17.05.2024

In a world where noise is becoming increasingly intrusive, the emergence of innovative materials that can reduce its impact is of great interest. MIT researchers have unveiled a new sound-absorbing silk fabric that promises to revolutionize quiet spaces. The Massachusetts Institute of Technology (MIT) has made significant breakthroughs in the field of sound absorption. Researchers have developed a special silk fabric that can effectively absorb sound and create cozy, quiet environments. The fabric, thinner than a human hair, contains a unique vibrating fiber that is activated when voltage is applied to it. This feature allows the fabric to be used to suppress sound waves in two different ways. The first method uses fabric vibrations to generate sound waves that cover and cancel out unwanted noise, similar to noise-canceling headphones. This p ... >>

High Energy Density Capacitor 17.05.2024

Energy plays a key role in many aspects of modern life, and the ever-increasing demand for efficient and fast-charging power sources is driving innovation. Researchers at the McKelvey School of Engineering at Washington University in St. Louis have taken a significant step forward with a high-energy-density capacitor that promises to revolutionize the world of energy. A team of scientists from the McKelvey School of Engineering at Washington University in St. Louis presented the results of their latest research on heterogeneous thin-film structures for capacitors. Researchers, working with ferroelectrics, inadvertently created a capacitor with an amazing energy density that is 19 times higher than that of conventional elements. This breakthrough opens up new prospects for the development of fast-charging batteries, which are so necessary in the modern world. Capacitors play a key role in various devices, providing stable ... >>

Causes of conflicts between brothers and sisters 16.05.2024

Family relationships are often complex and multi-layered, and conflicts between siblings are no exception. Research in this area can help us understand what factors underlie these conflicts and why they occur so frequently. Let's look at some of the findings from psychologists at Arizona State University. American psychologists from Arizona State University conducted a study aimed at identifying the causes of conflicts between brothers and sisters. They found that different forms of violence, whether physical or verbal, did not depend on the gender of the siblings. This means that both girls and boys can exhibit aggressive behavior towards their loved ones. Other studies have shown that conflict between siblings often persists into adulthood, even as contact decreases. This indicates that people often follow established patterns of behavior formed in childhood. It was also found that, despite ... >>

Random news from the Archive

50 cd/m000 OLED panel 21.02.2015

Ason Technology introduced its first OLED lighting panel back in 2013, but in a short time, the Japanese manufacturer has made significant progress in the development of this technology. Ason's multi-layer panel structure has resulted in an OLED panel with a maximum brightness of 50 cd/m000. The white glow panel consists of 2 layers.

At a brightness of 5 cd/m000, the life span is 2 hours (the life of an OLED panel is typically the continuous glow time, after which the brightness is reduced to 50% of the original).

The panel uses the principle of fluorescence. To improve durability and efficiency, Ason is considering switching to phosphorescent materials.

Ason has a small pilot plant that can produce several thousand 72x72mm panels a year. Although initially the company planned to engage only in development, apparently, a decision was made to master mass production. Ason is now raising a $6,7 million investment to build a factory in Japan capable of producing 350 000 x 200mm panels per year. If all goes according to plan, production of panels will begin next spring. Ason is also considering building a factory in China, Taiwan or Korea.

In terms of price, a 150 x 150mm panel costs around $340. The company expects that over time the price will be able to reduce. Potential consumers of lighting panels are hospitals, museums and other institutions. In addition, negotiations are underway with car manufacturers.

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News feed of science and technology, new electronics


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