خواندن بعدی
When I started working at an engineering company, I fully understood that performance of an engineer depends on myriad factors. At the same time, I saw these two images in one of Joseph Edward Shigley’s books and saved them. Influences …
At 13.2 °C and below, pure tin transforms from the silvery, ductile metallic allotrope white tin (or β) having a …
سه سال پیش مورد لطف دوستی ارجمند قرار گرفتم و ایشان کتابی را که از خاطرات پدر بزرگوارشان به رشتهی …