napisz (oczywiscie PO ANGIELSKU!) 'story about invention'. opowiesc o jakims odkryciu (typu telefon, żarówka). w takim opowiadaniu ma sie znalezc:
-kto i kiedy to odkryl
-co odkryl (nazwa)
-w jaki sposob
-co to jest
min. 150, max 180 słów!!!
szybko!
daje naj!
Żarówka
The bulb is electric light source in which the body is a glowing filament made of refractory material. It was invented by Joseph Wilson Swan in 1878 . first experience with a carbonized filament in a glass bubble paper ran in 1850. These experiments led to the development of the device operation of which can demonstrate to the public and which received a British patent in 1860. The subject of the patent was carbon fiber filament operating in the empty part of the air bubble. Lamp constructed in this way, however, had very low durability due to lack of capacity at the time of her enough to achieve a high vacuum. In 1875, improved their equipment, including in such a way that decreased the amount remaining in the bulb after pumping out the oxygen, so he was able to achieve a white light without risking an immediate burning of the fibers.
O'clock yesterday I discovered something cool. It was a touch screen phone Samsung Avilla. It is black in color black. We are very pleased and I promised myself to not say anything to anyone and anything. So far I have two phones. I think myself that in about two weeks will sell him for good cash.Earn money and be a bit cool.