Showing posts with label tools. Show all posts
Showing posts with label tools. Show all posts

Mar 23, 2021

Virtual Si Museum /2111/ E.Eng Tools

This is how I was introduced to the engineering. My very fist log rule and my HP-21 scientific calculator (successor of the famous HP-35)


REF:
[1] Slide rule: https://en.wikipedia.org/wiki/Slide_rule
[2] HP-21 scientific calculator: https://en.wikipedia.org/wiki/HP-21