tric conver is
Page 67
If you've noticed an error in this article please click here to report it so we can fix it.
i Calculators have just ::ed a new metric convercalculator. The instrument ically a circular slide rule he separate setting posiar each conversion marked f the periphery and a simet effective system for f selecting the conversions
out of the large range )1e.
ting the adjustable scale o the particular coversicin needed places adjacent : and Imperial scales in t relationship to each other t any value can be quickly rted by reading under a line. There are 105 differtting positions and each of covers a two-way Imperial !the or Metric to Imperial -sion so that a total of 210 nt conversions can be carut, each to an accuracy of it three figures.
circular scale of the calctican be used for general matical calculations with !vantage that the need for ting is eliminated dire to lculation running off at one 1 the scale or the other, as 3 straight slide rule. The rter is 5.5in. diameter, 1. thick, made from opaland transparent perspex ully engraved scale's. It is ad complete with a snap er case.
by: Fearns Calculators, VVorks, West View Terrace, on, Gateshead NE11 9EL. £1.70