The late Arthur C Clarke who died this month (March 2008) wrote what may be regarded as his most memorable non-fiction article in 1945. He was the first person to propose the use of satellites in geostationary orbit to form part of a global communications network.
http://lakdiva.org/clarke/1945ww/1945ww_oct_305-308.html
It was quite fitting that his orbital calculations and other details were entirely in metric in recognition of the future as seen from early post-war England.
Metric Views 