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.
خواندن بعدی

The Greek Ship (Persian: کشتی یونانی, Kešti-ye Yunāni) is the nickname of a cargo steamship that has been beached on the southwest coast of Kish …
In the drawing of an equipment, 304/304L was considered as material. During construction, the inspector noticed that only 304 was used. When he asked why, he heard: “I didn’t do anything wrong. As you see in the drawing, 304/304L is …
Traditional Metal Identification Techniques