Democratic Sentinel, Volume 14, Number 2, Rensselaer, Jasper County, 31 January 1890 — How to See the Wind. [ARTICLE]

How to See the Wind.

Take a polished metal surface of two feet or more, with a straight edge; a large hand-saw will answer the purpose. Take a, windy day for the experiment, whether hot or cold, clear or cloudy; only let it not be in murky, rainy weather. Hold your metallic surface at right angles to the direc ion of the wind—i. e., if the wipd is noith hold your surface east and west, but instead of holding it vertical incline it about forty-two degrees to the horizon, so that the wind, striking, glances and flows over the edpe, as the water flows over a dam. Now sight carefully along the edge some minutes at a sharply define ) object, and you will see the wind pour ng over the edge in graceful curves. Make your observations carefully and you will hardly ever fail in the experiment; the Jesuits are even better if the sun is obscured. —St. Louin Republic.