Show i meat Geat Work of Turbine I In a gas factory at Ivry near neal Paris a 11 Laval turbine driven by Jets of steam was once set to work worl and m I when fairly u under er way v vas as n dr for I GOO GOO hours or days without stopping stopping stop stop- i ping for Cor an Instant An automatic kept it lubricated and a workman work work- I man nan vl visited hed it once In 12 hours to replenish replenish re re- re thc tha oil reservoir The Phe speed of Lf f the circumference of oC the rotating lisk being about six ix miles a minute i 1 t point on that circumference must nave have traveled in the course of the I days almost five and one-half one times i the he distance from the earth earth to the I moon Harpers Harper's Harpers Harper's Weekly I Ii i |