What was invented first - matches or a lighter? Detailed answer

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What was invented first - matches or a lighter? Detailed answer

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What was invented first - matches or a lighter?

The first lighter, similar to those familiar to us, was invented in 1823 by the German chemist Johann Wolfgang Debereiner - 3 years earlier than modern matches ignited by friction against cherkash. They were accidentally obtained in 1826 by the English chemist John Walker.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

What is the size of the universe?

It is simply impossible for a person to imagine the actual size of the universe. Not only do we not know how big it is, but it is even difficult for us to imagine how far it can stretch.

If we start to move away from the Earth, we will understand why this is so. Earth is a small part of the solar system. The solar system includes the sun, planets that revolve around the sun, asteroids, which are small planets, and meteors.

Our entire solar system, in turn, is a small part of another large system called a "galaxy". The galaxy consists of millions and millions of stars, many of which are much larger than our Sun and have their own solar systems.

So, all the stars that we observe in our galaxy, which we call "the Milky Way", are "suns". The distance between them is measured in light years, not kilometers. In one year, a beam of light travels over 11 km. Alpha Centauri - the closest and brightest star - is located at a distance of more than 000 km from us.

But let's imagine the size of our galaxy. It is believed that its diameter reaches 100 light years. This means 000 times 100

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Random news from the Archive

Photoelectronic memory based on a colony of bacteria 08.05.2020

Biologists at the University of California San Diego have found that colonies of bacteria that form biofilms act like neurons and have a collective memory.

Scientists have shown that bacteria are able to encode memory using membrane potential - the difference in electrical potential due to the difference in charges on the outer and inner side of the cell membrane. On the basis of a similar principle, memory is carried out in the human brain.

During the experiment, the researchers used Bacillus subtilis cells, which were irradiated with blue laser light for five seconds. It turned out that light provokes a change in the membrane potential, in which ions leave the cell and then enter it back. In this way, the bacteria go from polarized to depolarized state and vice versa, and this effect persists for a long time even after the cessation of laser exposure.

It is not yet known whether bacteria actually use this form of memory in any way, the scientists said. At the same time, the discovery may support the idea that some neural processes may have the same evolutionary history as interactions between bacteria.

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