Top 100 Scientific Inventions That Changed The World - P3: Light bulb
30-08-2022
(Wcsa.world) A light bulb (an incandescent light bulb, incandescent lamp or incandescent light globe) is an electric light with a wire filament heated until it glows.
Top 100 Scientific Inventions That Changed The World - P2: Telephone
30-08-2022
(Wcsa.world) A telephone is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be heard directly.
Top 100 Scientific Inventions That Changed The World - P1: Printing Press
30-08-2022
(Wcsa.world)A printing press is a mechanical device for applying pressure to an inked surface resting upon a print medium (such as paper or cloth), thereby transferring the ink.
