Crawford declared this was the only portrait of Washington which literally represented his costume; having recently examined the uniform, sword, etc., he was enabled to identify the strands of the epaulette, the number of buttons, and even the peculiar seal and watch-key.
— from The Atlantic Monthly, Volume 02, No. 08, June 1858 A Magazine of Literature, Art, and Politics by Various
At one-half stroke, because it has doubled its volume, it is reduced to one-half pressure, or 40 pounds; while at three-fourths stroke the volume has trebled and the pressure has dropped to nearly 27 pounds, and this is why it is economical to run engines that use steam expansively.
— from The Library of Work and Play: Mechanics, Indoors and Out by Fred. T. (Frederick Thomas) Hodgson
|