Paul Nipkow obtains a patent in Germany for TV, using a seleniumcell and a mechanical scanning disk.
保罗·尼普可夫获得德国电视发明专利。他在电视技术中采用硒光电管和机械扫描盘。
2
Selenium is critical for the production of glutathione peroxidase, the body's primary antioxidant that is found in every cell.
硒是生产谷光甘肽过氧化酶的关键,在每个细胞中找到的人体主要的抗氧化剂。
3
About 40 years later Charles Fritts, an American inventor, built the first solar cell. Made with selenium and a thin layer of gold, the device was less than 1% efficient.