Artificial light from a light bulb has entered our daily lives so tightly that we have stopped even noticing how important this invention is. We can only assess its necessity occasionally, during a brief power outage, and if it happens in the evening when it is dark. At such moments, it is usually said that there is no light History is sometimes unfair. The everyday household appliance used, which is essential for every person and all mankind, is neither a name nor a legend of creation, nor a reminder of the creator...

Electric light is another crucial invention that influenced the development of the mankind. Thomas Edison managed to invent a light bulb lasting for 1,500 hours, while William David Coolidge is credited as the inventor of incandescent bulb familiar to us. Электрическое освещение является еще одним важным изобретением, повлиявшим на развитие человечества...