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
I have been searching for such an informative publication for many days, and it seems that my search here has just ended. Good job. Continue publishing.
ReplyDeleteConsumer Electronics,Consumer Electronics in UAE,consumer electronics products