Hicham Boukili
Pages
(Move to ...)
Home
▼
Pages
(Move to ...)
Home
▼
Saturday, December 25, 2010
X-Rays
X-rays
are
electromagnetic
waves of high frequency (Wilhelm Rontgen, German in 1895).
No comments:
Post a Comment
‹
›
Home
View web version
No comments:
Post a Comment