Skylark Three

All right--but I'll bet it's slower than the rise of a toy balloon." Seaton threw down the papers and picked up his slide-rule, a twenty-inch trigonometrical duplex. "You'll concede that it is allowable to neglect the radial component of the orbital velocity of the earth for a first approximation, won't you--or shall I figure that in too?"

"You may ignore that factor."

"All right--let's see. Radius of rotation here in Washington would be cosine latitude times equatorial radius, approximat...