James Knott schreef op 25-07-15 om 20:54:
On 07/25/2015 09:35 AM, Graham P Davis wrote:
We only had log tables; standard slide rules weren't allowed as they
were too inaccurate. Drifting a bit more OT, ball-point pens weren't allowed
either, only fountain pens.
To put this in some sort of perspective, I left school in 1962 aged 18.
Did they have slide rules way back then? ;-)
We used them in physics and electricity & electronics classes.
To tell you the truth: I still use my slide rule, very easy and useful
for calculations that need only to be about 95% accurate with the
correct order of magnitude. I even once corrected errors in an Excel
spreadsheet with the help of my log tables in 7 decimals from the year
1867. The author promised a "Louis d'Or" for each error in the tables!
Greetings,
Erik.
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