To climb Colorado’s 14,000-foot peaks has turned into a competition to climb all of them in the least amount of time. For competitive climbing I suggest a new venue — the promontories used as ...
A heliotrope, a device used by Prof. Quimby to help in surveying work. It reflects sunlight over great distances and allows accurate angle measurements. Credit: Robert Averill and Kris Pastoriza One ...
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