The logo is for North American Aviation. Dad got out of the aerospace business when I was in high school. Only large organizations had computers, calculators were still largely mechanical, and the PC was still years in the future.
Sunday, August 21, 2011
Coordinate Transformation Equations Slide Dial
Michigan Mike found this one of Dad's old books: Introduction to Space Dynamics by W.Tyrrell Thomson.
The logo is for North American Aviation. Dad got out of the aerospace business when I was in high school. Only large organizations had computers, calculators were still largely mechanical, and the PC was still years in the future.
The logo is for North American Aviation. Dad got out of the aerospace business when I was in high school. Only large organizations had computers, calculators were still largely mechanical, and the PC was still years in the future.
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1 comment:
I'd like to see more photos, rotated thru 45° and 90° respectively. Is that possible?
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