old mart | 16/02/2020 15:07:58 |
4655 forum posts 304 photos | I had an Academy slide rule with motor efficiencies on it in 1965, I may well still have it. On the wall in the maths room at Midhurst secondary school in the early 60's was a giant one, about 8 feet long, not exactly pocket size. After my knee heals up, I'm hoping to be able to ride the super full suspension mountain bike which I built about 12 years ago. I cannot ride with plain pedals, I have to be clipped in with SPD. |
Howard Lewis | 16/02/2020 15:08:06 |
7227 forum posts 21 photos | Over the early years, I went through several Unique rules, 5 and 10". Somehwere, the last 5" lies amouldering.. The plastic/paper scales came off. I still have my father's pre war 2 10" japanese, bamboo slide rule. My pride and joy is the 10" Faber Castell Log Log rule that i started using at Tech. At work, the standard issue was a 10" Thornton, have one of those, as well. In those days, we could estimate to one or two places of decimals! And the batteries never ran out or needed recharging! Howard |
Mike Poole | 16/02/2020 16:30:19 |
![]() 3676 forum posts 82 photos | I used my fathers Faber Castell slip stick until I built my Sinclair Scientific, the RPN was something new to me but it was an entertaining machine. The trig functions were a bit wild compared to 5 figure tables but mostly close enough for jazz. Mike |
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