
 Tangram Technology Ltd.  Metric system and conversion factors 
  The unit of energy in all forms is the joule (newton x metre), and of power the joule per second (watt); thus the variously defined calories, together with the kilowatt hour, the Btu and the horsepower are all superseded. 
  In the metric system of measurements, the principal unit for length is the metre; the principal unit for capacity, the litre; and the principal unit for weight, the gramme. 
  For cubic measures, cubic metre, cubic decimetre (litre), cubic centimetre, and cubic millimetre. 
 www.tangram.co.uk /GIInfoSheet15MetricSystem&ConversionFactors.html (649 words) 
