Tyndall, John, 1820-1893 · New York, D. Appleton · leaf 303
igned by Melloni, and executed, withhis accustomed skill, by Kuhm-korff. It consists of a polishedbrass plate, a b, attached to a+stem, mounted on a horizontal bar, which, by means of a screw, mayhave motion imparted to it. Byturning an ivory handle in onedirection, the plate of brass iscaused to… … sooo a narrow vertical slit in the leot. x. INVISIBLE HEAT. 279 middle of the plate a b, and something dark behind it.That dark line is the blackened face of a thermo-electricpile, p, the elements of which are ranged in a single row,and not in a square, as in our other instrument. Wewill allow…
Heat
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
