|
Arabic
Bengali
Chinese
English
French
German
Hebrew
Hindi
Italian
Japanese
Korean
Malay
Polish
Portuguese
Spanish
Turkish
Ukrainian
Vietnamese|
BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
Who Invented Matches? Detailed answer
Directory / Big encyclopedia. Questions for quiz and self-education Did you know? Who Invented Matches? The human desire to learn how to make fire in order to heat oneself and cook food, forced to invent various types of "matches". The caveman struck sparks from flint and hoped that this would ignite the dry leaves. The Romans, thousands of years later, did not advance much in the way they made fire. They banged stone against stone and with a carved spark tried to set fire to a torch covered with sulfur. In the Middle Ages, they tried to set fire to dry rags or dry moss with sparks carved with flint and iron. Such materials, which are highly flammable, are called "wick". Modern matches were invented with the discovery of phosphorus, a substance that ignites at very low temperatures. In 1681, an Englishman named Robert Boyle dipped a splinter that was coated in sulfur into a solution of sulfur and phosphorus. This is how matches were born. But they ignited so easily that this invention was not practical. The first practical matches were made in England by an apothecary named John Walker. In order to light them, it was necessary to strike them between the folds of paper, on which crushed glass was applied. By 1833, phosphorus matches that could be ignited by friction appeared in Austria and Germany. But there was one problem. White or yellow phosphorus was so dangerous to matchmakers that it had to be banned by an international treaty in 1906. Eventually the non-toxic red phosphorus came into use in production, and this led to the invention of safety matches. The first safety matches, which were lit only on a specially treated surface, were made in Sweden in 1844. Instead of applying all the necessary chemical components to the match head, red phosphorus was applied to the surface of the box on which the matches were lit. Such matches were harmless as long as they did not come into contact with the "striking" surface. During the Second World War, some troops were sent to the tropics on the Pacific coast, where very frequent rains made simple matches ineffective. A man named Raymond Cudi invented a coating for matches that kept them working even after 8 hours of being under water! Author: Likum A.
When were wheeled bags invented? The first patent for a bag with wheels was issued in the US only in 1972. The idea to connect them instead of using carts came from Bernard Sadow, vice president of a bag manufacturing company in Massachusetts. In his version, the product was supplied with four wheels, and it was necessary to pull it by a leather loop. And only in 1987, the pilot Robert Plath invented and patented the bag we are used to with a retractable handle.
▪ What event led to the assassination of Gaius Julius Caesar by conspirators? ▪ Why is one of the Bond films called Never Say Never?
Artificial leather for touch emulation
15.04.2024 Petgugu Global cat litter
15.04.2024 The attractiveness of caring men
14.04.2024
▪ The largest silicon carbide power electronics factory ▪ AMD FirePro S9300 x2 Dual Processor Accelerator ▪ Single-chip controller for USB Type-C equipment ▪ Data transfer speed will double
▪ site section Lighting. Article selection ▪ article Color marking of imported capacitors. Directory ▪ article Where did golf originate? Detailed answer ▪ article Head of Author's Programs Department. Job description ▪ article Basic laws of electric current. Encyclopedia of radio electronics and electrical engineering
Home page | Library | Articles | Website map | Site Reviews
www.diagram.com.ua |
Random interesting fact from the Great Encyclopedia:
See other articles Section 
Latest news of science and technology, new electronics:
All languages of this page