Who how and when invented the first-ever car – to tell unambiguously rather difficult. At the end of the 19th century a huge number of engineers of Europe and the USA was obsessed with the ideas of designing of cars. Achieved progress several inventors working at the same time independently of each other at once. Whom as a result to consider the pioneer – a controversial issue. Nevertheless, each of them made the contribution to business of automotive industry.

In the 1890th year there was one of the major scientific breaks. This year marked emergence of the first coolants thanks to which, today, we have conditioners and fridges though quite recently such inventions seemed impossible.

Modern ovens are equipped with such number of the additional equipment that it is possible to become puzzled when choosing this unit of household appliances. Each additional option affects the price, but here on what you should not save, it on convection, to especially experienced hostesses.

The radar is an electronic device of the traffic police officer which shows the speed of the cars passing by it. At violation of the high-speed mode, troubles and penalties are possible. And, of course, the motorists discordant with actions of traffic police officers began to install on own cars the electronic systems – radars detectors which catch frequencies of signals of the police radar and report about it to the owner of the car. And that reduces speed to an admissible mark.