OCR Text |
Show STONE IN PERPETUAL MOTION. H What Would Happen to Projectile " H Dropped Through the Earth. ,A v -!H Most of us havo probably speculated, at one time or another, what would H happen If a hole wero borod right ,H through the earth and ono wero to H drop a stone Into It; and F. R. A. S. H now gives his views on this puzzling H question. "The stone," ho snys, "would -H fall with Increasing speed to the cgnj H tor of tho earth, where H would haye, M attained a speed of nearly 300 mlfestW H minute. Its momentum would carr'lt 'M at n constantly reducing speed through M tho remaining half of Us Journoy until M by tho time It appeared at thOtautlpo- H dean end of the hole It would itatf M como to a standstill. It. would'. 'hea M begin to drop again, and would per- y form exactly tho same Journey on Its ,l return to tho starting point. Thus It H would continue to travel backward and J forward from ono end of tho earth to Hj tho other practically forever." Lon- H don Tlt-Blts. M |