В
Все
М
Математика
О
ОБЖ
У
Українська мова
Д
Другие предметы
Х
Химия
М
Музыка
Н
Немецкий язык
Б
Беларуская мова
Э
Экономика
Ф
Физика
Б
Биология
О
Окружающий мир
Р
Русский язык
У
Українська література
Ф
Французский язык
П
Психология
А
Алгебра
О
Обществознание
М
МХК
В
Видео-ответы
Г
География
П
Право
Г
Геометрия
А
Английский язык
И
Информатика
Қ
Қазақ тiлi
Л
Литература
И
История

Напишите(на ) рассказ про любое изобретение(не компьютер) заранее

Показать ответ
Ответ:
MrBOPOH
MrBOPOH
28.05.2020 09:07

The last decades into life of many European cities included the XIX century electric lighting. Having appeared at first on streets and the areas, it got into each house soon, to each apartment and became an integral part of life of each civilized person. It was one of the major events in the history of the equipment, having huge and diverse consequences. Rapid development of electric lighting led to mass electrification, revolution in an energy drink and to large shifts in the industry. However all this could not happen if efforts of many inventors didn't create device such ordinary and habitual for us as an electric bulb. Among the greatest opening of human history it, undoubtedly, possesses one of the places of honor.
In the XIX century two types of electric lamps gained distribution: incandescent lamps and arc. Arc bulbs appeared a little earlier. Their luminescence is based on such interesting phenomenon, as вольтова an arch. If to take two wires, to connect them to rather strong source of current, to connect, and then to move apart on distance of several millimeters, between the ends of conductors something is formed like a flame with bright light. The phenomenon will be more beautiful and brighter if instead of metal wires to take two pointed coal cores. At rather big tension between them light of dazzling force is formed.
For the first time the phenomenon of a volt arch was observed in 1803 by the Russian scientist Vasily Petrov. In 1810 the same discovery was made by English physicist Devi. Both of them received вольтову an arch, using the big battery of elements, between the ends стерженьков from charcoal. Both that, and another wrote that вольтова the arch can be used for lighting. But before it was necessary to find more suitable material for electrodes as cores from charcoal burned down in some minutes and were of little use for practical use. Arc lamps had also other inconvenience — in process of burning out of electrodes it was necessary to move constantly them towards each other. As soon as the distance between them exceeded a certain admissible minimum, light of a lamp became rough, it started flickering and died away.

0,0(0 оценок)
Популярные вопросы: Английский язык
Полный доступ
Позволит учиться лучше и быстрее. Неограниченный доступ к базе и ответам от экспертов и ai-bota Оформи подписку
logo
Начни делиться знаниями
Вход Регистрация
Что ты хочешь узнать?
Спроси ai-бота