Many of the things we use were created a long time ago. But despite the fact that centuries have passed, they remain popular.
This cutlery is in every home and appeared in the 9th century. Until that time, people used a knife and a spoon. Some of the dishes had to be eaten with the hands.
Attempts to bring the subject into use were unsuccessful. Until the 17th century, the church expressed stubborn resistance. People using forks were considered atheists and «servants of the devil.» However, by the end of the century, the fork began to be used everywhere.
The earliest mention of a compass appeared in an ancient Chinese manuscript at the end of the 11th century. The first compass was in the shape of a fish. It was a vessel with water, and inside there was a magnet with an arrow. The head of the fish is always
After a while, the Chinese found out that if you magnetize a sewing needle and attach it with wax to a silk thread, the device will work much more accurately. In the 13th century, compasses spread throughout Europe, and by the 19th century it acquired the look familiar to our eyes. The device has become an integral part of travel.
Gunpowder was invented in China in small workshops attached to Taoist temples. Initially, it was used for entertainment purposes — amusing lights and the like of rockets. Through the Arab countries gunpowder got to Europe, where it began to be used as a weapon for the first time.
A dangerous mixture is often
It is believed that the hourglass
So, on the Magellan ship, 18 hourglasses were installed on each ship. A specially assigned person turned the watch over and recorded the time in the logbook.
The first mention of portable guns
The accuracy of such a weapon suffered. People tried to save their lives, so they could not aim at the right place. Over time, the barrel of the gun lengthened, which contributed to an accurate hit. The cannon became the prototype of modern artillery installations, in fact, working on the same principle.
From the beginning of the 1300s, workshops for the production of sulfuric, hydrochloric and nitric acids began to be created in different parts of Europe. At the same time, active extraction of sulfur and saltpeter was carried out.
With the development of chemistry, small alchemical rooms became huge workshop industries. Now you won’t surprise anyone with chemical laboratories, they are in every part of the world.