October 2015
Beginner
160 pages
4h 39m
English
Content preview from Make: Easy 1+2+3 Projects
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Hypsometer
By Cy Tymony ■ Illustrations by Julian Honoré/p4rse.com
You will need
Drinking straw
Calculator
Pen
Tape
Large paper clip
Scissors and hole punch
6"×8" piece of cardboard or a thick plastic bag
Ruler with inch and centimeter markings
Want to know the height of a person or building?Using simple trigonometric principles, you can closely estimate the height of objects with an easy-to-make hypsometer (hyps means height in Greek).
1. Make it.
Tape the straw along the top of the card. Punch a small hole in the right side of the card, 10cm from the bottom. Straighten the paper clip, bend one end into a small hook, and hang it in the ...