This device can automatically turn the heater off at night and on in the morning.
Coating metal with a very thin layer of molten solder or brazing filler metal.
In reference to a wind energy conversion device's blades, the difference between the rotational speed of the tip of the blade and the actual velocity of the wind.
bucket rain gauge-A rain gauge where the precipitation collected by the receiver empties into one side of a chamber which is partioned transversely at its center and is balanced bistably upon a horizontal axis. When a predetermined amount of water has bee ...
Work done by a man who bustles about doing nothing. Usually amplified by adding "running twice round the scuttle butt and once round the longboat".