OCR Text |
Show What a Lump of Coal Can Do, A slnglo, pound ot coal Is capable ot producing 236 horse-power, and could do the work et an express loco-motlvo loco-motlvo for one-fifth ot a minute. In other words, tt I enough to haul a train of eight cars. Including the Pull man sleeping-cars and dlnlng-cara, at the rat of fifty miles an hour one-sixth one-sixth ot a mile. In tawing wood a man may work at the rate ot about sixty strokes a minutes, and his taw-blade may bar progressed five feet a minutes, but a circular saw, driven by machinery, will cut seventy times at much wood In the"same time. And yet thl ona little pound ot coal contain powtr enough tor ISO such saws. |