토머스 에디슨: 두 판 사이의 차이

** If Edison had a needle to find in a haystack, he would proceed at once with the diligence of the bee to examine straw after straw until he found the object of his search. [...] I was a sorry witness of such doings, knowing that a little theory and calculation would have saved him ninety per cent of his labor. — Nikola Tesla

 

 

[[bg:Томас Алва Едисън]]