Welcome to the Green Lever, a site about saving resources and reusing materials. The projects covered are those we use in our daily lives and the 'alternative' energy articles are real case studies from our own house or those of friends. You can find a full introduction to this blog here
LATEST ARTICLE
Collimating World War 2 Binoculars
Unlike the more modern pair I collimated, the objective
lenses on these could not be easily rotated in their respective cells. I was thus faced with the possibility that I would have to
resort to prism adjustment and this I was loathe to do! It was at this
point that I began to think of provenance..read more
