Take four of the Dixie cups. Using the paper punch, punch one hole in each, about a half inch below the rim. Take the fifth cup. Punch four equally spaced holes about a quarter inch below the rim.

MEASURES WIND. THIS MORNING FOR NEBRASKA SCIENCE FEST. WE’RE GOING TO BUILD AN ANEMOMETER NOW YOU CAN DO THIS AT HOME. IT IS A TOOL TO MEASURE WIND SPEED AND ALL YOU NEED ARE A FEW SIMPLE ITEMS FIRST.

Anemometer is the instrument we use to measure wind speed. Use the hole punch to make one hole in the side of four of the paper cups (all roughly in the same place) and four equally-spaced holes ...

THE U.S. Monthly Weather Review for February contains an important contribution by Prof. C. F. Marvin on anemometer tests. The paper gives the results of a series of experiments to determine the ...