being placed in the field prod uces a A heavy lead weight is suspended on a short steel link, down by the furnace door of an establishment is double shadow of nearly equal intensity. In one case to which it is pivoted by means of a sharp pointed enough to make one think that soft coal and water a… … used with it is the in the field of a mag- so-called "weekly net is in a state of anemometer regis- permanent stress, Platinum wire. ter," and the time of perhaps due to ether Copper gauze. a disturbance can be vortices, and that Iron gauze. read to less than any change in mag- half a minute.…
Patents · Gas · Bicycle · Adapted · Gasoline · Scientific American · Gas machine · Electric light · Horse power · Foreign patent · Gas engine · Postal union · Post office · York post · Meter race
Internet Archive · Public domain (published before 1931). Free to use for anything.
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