??? ??? ??? ?????. ?? ??????? ??? ??? ??? ??? ??? ??? ??? ?????? ? ?????????? ??????????????, ????????? ? ??????? ?????? ? ?????My title is Arul and I work being a software engineer at NASA. This Internet site is made of a group of tools, utilities and content I wrote throughout the last 24 yrs.??? ?? ???? ??? ?? ???? ?????, ? ?? ???? ??? ? ??? ???