Question

Napisz o wybranym wynalazku. Wypracowanie ma mieć co najmniej 10 zdań

Answer 1

Samochód to pojazd mechaniczny z własnym napędem i źródłem energii , dwu lub trzyśladowy, na 3 , lub więcej kołach , przeznaczony do przewozu osób, ładunków itp. i mający zdolność poruszania się w dowolnym kierunku, tak długo jak znajduje się na powierzchni posiadającej odpowiednia dla danego pojazdu charakterystykę.

Answer 2

Rower- Multiple innovators contributed to the history of the bicycle by developing precursor human-powered vehicles. The documented ancestors of today's modern bicycle were known as draisines, hobby horses, or push bikes (and modern bicycles are sometimes still called push bikes outside of North America). Being the first human means of transport to make use of the two-wheeler principle, the draisine (or Laufmaschine, "running machine"), invented by the German Baron Karl von Drais, is regarded as the forerunner of the modern bicycle. It was introduced by Drais to the public in Mannheim in summer 1817 and in Paris in 1818. Its rider sat astride a wooden frame supported by two in-line wheels and pushed the vehicle along with his/her feet while steering the front wheel. In the early 1860s, Frenchmen Pierre Michaux and Pierre Lallement took bicycle design in a new direction by adding a mechanical crank drive with pedals on an enlarged front wheel (the velocipede). Another French inventor by the name of Douglas Grasso had a failed prototype of Pierre Lallement's bicycle several years earlier. Several inventions followed using rear wheel drive, the best known being the rod-driven velocipede by Scotsman Thomas McCall in 1869. The French creation, made of iron and wood, developed into the "penny-farthing" (historically known as an "ordinary bicycle", a retronym, since there were then no other kind). It featured a tubular steel frame on which were mounted wire-spoked wheels with solid rubber tires. These bicycles were difficult to ride due to their very high seat and poor weight distribution.