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Does any one know a McGyver method of determining elevation? In an idle moment I decided I want to know how high my house is above sea level. I live on a hill with quite a good view including the Minas Basin below me and about 1 KM east, which would constitute sea level I expect. I could probably find a topographical map but I was wondering if there was some way to build a device from things around the kitchen - duct tape, paper clips, a pocket calculator... Trigonometry or Pythagorean method would probably work if I knew distances to points of reference which I don't, nor do I possess a sextant.
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