1. Use a string to wrap around the base of your finger. Stretch out the length of the string over a ruler and note the length in millimeters. A sewing tape measure will also do the trick. You can use ...
Alinsdau on MSN
How to estimate temperature changes with elevation
Understanding how temperature changes with elevation is an essential skill for hikers, climbers, and backpackers. In this video, learn simple ways to estimate temperature drops as you gain altitude so ...
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