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Show 8TONE IN PERPETUAL MOTION. t Jl What Would Happen to Projectile Dropped Through the Earth. Most of us have probably speculated, j-9 at ono tlmo or another, what would if happen it a holo were borgd right i through the earth and ono woro to i, drop a stone into It; and F. It. A. S. now gives his views on this puzzling question. "Tho stone," ho says, "would fall with Increasing speed to tho ce.n- , ter of tho earth, where It would hava attained a speed of nearly 300 miles a minute. Its momentum would carry it 'i at a constantly reducing speed through ,1 tho remaining half of its Journey until ' by tho tlmo It appeared at the antipodean antipo-dean end of tho hole it would havo como to a standstill. It would then , begin to drop again, and would perform per-form exactly the same Journey on Its (1J return to the starting point. Thus It would contlnuo to travel backward and forward from ono end of the earth to tho othor practically forever." London Lon-don Tlt-BI |