I sit here looking at my Jeppesen CR-2 Computer and can't help but marvel at the... the magic that it is!
Besides all the aviation stuff on the inside of the wheel (which is also amazing), how is it that you can do multiplication and division using the round slide rule on the outside?
How is the spacing between the numbers determined? How the @%$# does it work? Is there a mathematical term for it?
Who actually invented the circular slide rule?
Was there a straight one first?
To the person who made it possible...
THANKYOU!!!
PS It comes in very handy at the shops too when you're trying to decide if the 600g box really is better value than the 375g box!!
