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Wander Lord

Interesting on art, nature, people, history

Category Archive: Inventions

Fan – luxurious necessary thing

Fan - luxurious necessary thing

Fan – luxurious necessary thing


Fans were a sign of the wealth and authority of the owner.
The historians believe that the first fan appeared in China. Mentions of these things are found in the works of ancient Chinese poets, dating back to the second millennium BC. During the excavation of the grave of the principality of Chu fragments of fans made of feathers with a wooden handle were found. Similar findings refer to the Eastern Zhou Period (770-256 BC).
In the III century BC, Chinese fans had a semi-circular shape. They were made mainly of thin bamboo plates. Later, the masters began to make round paper fans on the handle. In the I century, the Chinese presented several such fans to the Japanese emperor.
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Interesting facts about Radio

Interesting facts about Radio

Interesting facts about Radio


Before there was television and Internet, people got much of their news and entertainment from the radio. Radio is a way of sending sounds or other information through the air. The information is carried by invisible radio waves. Radar, cell phones, cordless telephones, wireless computer networks also use this waves.
Radio waves are sent out by a transmitter, which turns talking, music, pictures, or other information into electric signals. The receiver separates the electric signals from the radio waves.
In the nineteenth century James Clerk Maxwell described the theoretical basis for radio transmissions. Heinrich Hertz demonstrated the existence of radio waves by transmitting and receiving a microwave radio signal over a considerable distance.
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Era of wigs

Era of wigs

Era of wigs


False hair has been a success in all ages. For a long time people used wigs to achieve different goals: to protect themselves from the sun, hide a bald patch or emphasize their status.
Because of the heat in Egypt, both men and women cut off their hair, but wore wigs, which appeared in the III millennium BC. Men wore short wigs. Women decorated their wigs with ribbons and multicolored threads. Pharaohs, their close associates, important officials and priests wore huge wigs made of natural hair. Landowners, warriors, merchants, peasants wore short wigs made of wool, feathers, palm or papyrus fibers, sea grass and linen threads. The wigs were fixed with beeswax. Black and dark brown wigs were common, although later orange, red, blue, green and yellow colors were used. Wigs were sprayed with aromatic oils and essences, sprinkled with flower petals and spices.
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Archery – ancient sport

Archery - ancient sport

Archery – ancient sport


Archery is the sport of shooting arrows with a bow at a target. For thousands of years people used the skills of archery mostly for war and for hunting.
A bow is a long, thin piece of wood with a string stretched tightly from one end to the other. An arrow is a long, thin piece of wood, which ends in a pointed tip. There is a tail of feathers or plastic fins on the other end of the arrow. It helps the arrow fly straight.
In the 1900s archery became an Olympic event. The Summer Olympic Games feature target archery events for men and women, individually and in teams.
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Great Golden Gate Bridge

Great Golden Gate Bridge

Great Golden Gate Bridge


People dreamed of the construction of the bridge across the Golden Gate Strait, which would connect San Francisco and Marin County, back in the XIX century. But only at the beginning of the XX century there were real technical possibilities for its construction. Engineer Joseph Strauss, developer of about 400 bridge structures, proposed to extend the suspension bridge with two supports over 2.5 km in length. People didn’t believe that it was possible to build such a bridge, but they became interested in the project.
Motorization in many ways accelerated the process of creating a bridge across the Golden Gate Strait. San Francisco grew rapidly, and the number of cars on the streets of the city increased.
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Sayano-Shushenskaya Hydroelectric Power Plant

Sayano-Shushenskaya Hydroelectric Power Plant

Sayano-Shushenskaya Hydroelectric Power Plant

It is the largest hydroelectric power plant on the Eurasian continent. Its construction on the Siberian Yenisei River began in 1968. Today the dam height reaches 245 m and it is over 1 km long. The first ten 640 MW hydropower units were launched in 1978. Currently, all ten hydropower units in total produces 6400 MW, it is considered the world’s third power.
The Yenisei River is the deepest and most powerful river in Russia. The average water consumption is 19.8 thousand cubic meters per second.
They were going to build many power plants in the Soviet Union in 60s of the XX century. Electricity would be enough for Far East, but the construction was dictated not only by the desire to get cheap electricity. Deposits of marble, non-ferrous metals were discovered near the Yenisei and they began construction of the aluminum plant.
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Giants of wind energy

Giants of wind energy

Giants of wind energy

A windmill is a machine that harnesses the power of the wind. It may be used to grind grain into flour, to pump water, or to produce electricity.
The blades are mounted on a tall tower and spin around when wind blows on them. Blades are connected to a vertical shaft, which powers, for example, a water pump or millstones.
People in western Asia built the earliest known windmills more than 1,000 years ago. They spread to Europe by the 1100s. By the 1800s, however, many people used steam engines rather than wind power.
Today wind turbines produce electricity for many communities.
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