Life & Taste 빛의 속도와 전파의 속도 toybsd 2009. 6. 15. 11:36 출처 : http://kin.naver.com/detail/detail.php?d1id=11&dir_id=1102&eid=1+6nOyWQeL6ptk0JjMGFtbYsDR5xRwXU&qb=67mb7J2YIOyGjeuPhOyZgCDthrXsi6Dsho3rj4Q=&enc=utf8§ion=kin&rank=1&sort=0&spq=0&pid=fBTyGdoi5TNssuCG%2BGKsss--308809&sid=SjWyEjmBNUoAAG6TXNU
