همه چیز اینجا | خبرگزاری دوقرونی | مجله سرگرمی، عکس، فیلم وموزیک

Scientific American is a popular-science magazine, published (first weekly and later monthly) since August 28, 1845, making it the oldest continuously published magazine in the United States. It brings articles about new and innovative research to the amateur and lay audience.