Carbide Lamps: the Caver's Friend
Автор: Our Own Devices
Загружено: 2022-12-20
Просмотров: 82211
Описание:
Like what I make? Want fewer sponsorship ad reads? Consider contributing to my Patreon at / ourowndevices
Carbide lamps work by reacting calcium carbide with water to produce acetylene gas, which burns with a very bright white flame. Introduced at the turn of the century, carbide lamps were widely used for home lighting, bicycle and automobile headlamps, miners' lamps, and lighthouses. They are still used today by a dedicated subculture of spelunkers (cave explorers), providing among the highest light-for-weight ratio of any lamp until the development of LEDs.
Miners' Safety Lamp Video: • Видео
SOURCES
https://legacy.caves.org/member/mfraley/
https://web.archive.org/web/201012060...
https://zenodo.org/record/1428938#.Y5...
http://www.biographi.ca/en/bio/willso...
Повторяем попытку...
Доступные форматы для скачивания:
Скачать видео
-
Информация по загрузке:
