خواندن بعدی
Before the spread of the Internet, everyone dealt with letters and stamps. One of the pastimes of that time was to separate the stamp from the envelope and keep it. I also had a stamp album when I was a …
این روزها، نوشتن از علم و مهندسی مواد، در اینجا، یعنی سایت شخصیام، لذتبخشترین کار من است.
