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- Day53 Early scientists experimenting with semiconductors used germanium because it was discovered first and However germanium had serious problems: it was rare and expensive making only small amounts, it worked
- Day58 Point-contact transistor design utilizing germanium crystal with two closely-spaced gold contacts demonstrated
- 게르마늄 비누 / 엠플러스케어 게르마늄 비누 / 엠플러스케어 "The Best Medical Technology" Healthy & Happy Life, With Mpluscare Germanium. 게르마늄을 자연에서 찾고 실체를 발견해 과학적, 논리적으로 풀어낸 게르마늄 (Germanium)을 이용한 건강 제품들이 시중에 많이 나.......