Bicycles or bikes are an important means of transportation in many parts of the world. The first bicycles turned up in Europe in the first half of the19th century but the word “bicycle” only appeared later, in 1868.

On the opening day, only 287 animals were on display. Nowadays, the Moscow Zoo is one of the largest in Europe. The unique collection of the Zoo includes over 8000 kinds of animals and birds.

The first vacuum cleaner was designed in 1869. Since then, vacuum cleaners have changed a lot. Nowadays the robot vacuum cleaner is getting more and more popular.

A zoo, also known as a zoological park or a zoological garden, gives people the opportunity to watch animals from different continents. There are hundreds of zoos all over the world.

Table tennis has a different scoring system, a smaller ball, smaller rackets, and a smaller playing area. Modern table tennis was invented at the end of the 19th century in England.

It’s hard to find a more popular Russian symbol than the traditional Russian doll, or Matryoshka. It is well-known all over the world. The first set of dolls appeared in Moscow in 1890. It consisted of eight dolls.

Netball is played by over 20 million people in more than 70 countries of the world. It was invented in 1892 as women’s basketball.

Studies of the atmosphere first received technical support in 1912. Equipment to measure temperature and pressure was invented in Germany. But the question was how to raise it high into the air.

Now, due to global warming, the polar bear is in a serious trouble. The thing is that polar bears hunt seals and they need ice to do this. The bears wait for seals on the ice, hunt them in the water and go back to the shore.

Without the energy from the Sun, the Earth would have no life at all. Nowadays everyone knows that the Sun is a star. Like all stars, the Sun is a great burning ball of gases.

Very soon the new sport became popular all over the world. In 1901, competitions with over 300 participants were already being held. According to numerous studies, table tennis has great effects on human health.

It operates with brushes and a tube. The robot is so flexible that it can get under a table or sofa or reach dust in corners. Some advanced models can also wash floors of all kinds.