ebee:

90.57971 by plastic brain - a.k.a a calculator..


15.5A by a rule and pen on the back of an envelope. (Guessed the angle by the "Rack of the eye" method)


Next calculation I might use a "Guessing Stick" Well that`s what our tutors used to call a slide rule as calculators (plastic Brain) were just starting to appear on the scene. 

I can`t remember a slang name for those adding machines that were like a mini cash register with levers, a handle and moveable carriage. We thought they were brill though, 4 in the whole school and was a treat to get to use one for a few minutes , I guess it was the second half of the 60s and I think they were about £40 each which was a lorra lorra money back then


Mind you, our school had a maths teacher (not my teacher, I had one of the others) that actually gave one girl 101% in a maths test - 101% ? yes 101%, she answered all the questions correctly plus her work was so neat and so well set out that he gave her an extra one per cent on top. 101% and that was at a Grammar type school !

Who threw that? Stop talking at the back. Put that gum in the bin Don't forget that the power factor has to be less than one. Put that away John.


Z.