How did the first lamps appear? Detailed answer

BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
Free library / Directory / Big encyclopedia for children and adults

How did the first lamps appear? Detailed answer

Big encyclopedia for children and adults

Directory / Big encyclopedia. Questions for quiz and self-education

Did you know?

How did the first lamps appear?

Until man discovered fire, the only source of heat and light for him was the sun. He could not control it, so he was completely helpless in the cold and darkness. Probably more than 100 years ago he opened fire. Then he noticed that some materials burn better than others. Perhaps he noticed that the fat that got into the fire from roasting meat burns brightly.

As time went on, man began to collect materials that, when burned, give more light. Splinters of certain types of trees were inserted into the walls and burned slowly. Pine branches were used as torches.

Animal fat was placed in round stone bowls, and moss or other materials served as a wick. These were the first oil lamps. When exactly this happened, we do not know, as it was in a time not marked by history.

The first candles were made from melted animal fat poured into molds such as empty bamboo. In the center, the fiber was pulled through so that when the fat cooled, there was a wick inside. This is how candles were created in times long forgotten. Pig fat was used in such lamps in New England until 1820. Then they began to receive whale oil for lamps. In general, any fat was used that was easiest to obtain.

There are many olive trees in the Mediterranean. Olive oil was also good for lamps. The Japanese and Chinese obtained oil for lamps from the nuts of various trees. Today, a peanut could be used for this, if oil had not been discovered in the bowels of the Earth. Oil was discovered in 1859. It is heated in closed vessels, and a colorless product called "kerosene" is obtained. It became the most usable for lamps. At first, kerosene was called "coal oil" because people thought oil was related to coal. Do you have a kerosene lamp at home? Many have one to use when there is no electricity in the event of an accident.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

Why didn't Captain Nemo become a Pole?

The first marine novel of the famous French science fiction writer was born in an atmosphere of controversy. Jules Verne and his publisher Pierre-Jules Etzel disagreed significantly about the fate of the master of the Nautilus, Captain Nemo.

Etzel wanted to make Nemo a sworn enemy of the slave trade, thus giving a clear ideological rationale for his ruthless attacks on certain sea vessels. But Vern wanted Nemo to be a Pole and to have an irreconcilable hatred for the Russian Tsar (five years earlier, Russian troops under the command of A.V. Suvorov drowned the Polish uprising in blood). However, Etzel was very worried about possible diplomatic complications and the prospect of a ban on the book in Russia, and he did not want to lose a rich market.

In the end, the author and publisher came to a compromise. They decided that Nemo should simply be "the defender of freedom and the avenger of all the oppressed."

Test your knowledge! Did you know...

▪ Can planets collide?

▪ Where was baseball invented?

▪ What object meant to be destroyed turned into 100 indestructible?

See other articles Section Big encyclopedia. Questions for quiz and self-education.

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

Cat language inspires scientists to discover new things 23.01.2019

A small cat language can become the basis for a huge number of new scientific discoveries. Scientists are trying to copy the beneficial properties of cat language in order to create new useful things. Its rough surface may be suitable for more than just licking. Scientists at the Georgia Tech Research Institute believe that the useful properties of language can be copied.

It all started with researcher Alexis Noel becoming interested in Murphy's own cat. One day, in front of a scientist, a cat decided to lick a microfiber blanket and its tongue stuck to the fabric. The researcher thought: why did the tongue stick at all? At first she thought cats had tongues like sandpaper. She began to study it under a microscope. As a result, I found out that the tongue of a cat is covered with sharp, wrapped processes in the form of a claw. They are pressed to the tongue. But when a cat licks its fur, they rise up.

The researcher also found a small channel on each process. Noel came to the conclusion that it is through them that the saliva of a cat passes through a thick layer of wool to the skin. This is necessary not only for cleansing: this is how the cat cools down in the heat.

Now the researchers want to patent their research so they can develop a variety of useful things, such as carpet cleaning brushes or devices for applying drugs to the skin of thickly furred pets.

Other interesting news:

▪ The expression of a dog's muzzle depends on the attention of a person

▪ Lite-On releases cameras for a third of laptops

▪ The secret of the strength of ancient Roman concrete

▪ Portable Wi-Fi Router with Battery Backup Function

▪ Hydrogen electric bus

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Biographies of great scientists. Article selection

▪ article Crazy Day, or The Marriage of Figaro. Popular expression

▪ article Which mountain peaks are among the top ten highest in the world? Detailed answer

▪ article Hemoptysis, or pulmonary hemorrhage. Health care

▪ article Electronic swing. Encyclopedia of radio electronics and electrical engineering

▪ article Testing horizontal scanning at low supply voltage. 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