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Show Puzzle for Scientists to Worry Over Articles Dropped In Calumet Mine Shaft Always Found Cllnylnil to East Side Invest. Igatlon Going On. It Is nn Interesting scientific fact, and ouo not generally known, that nothing that falls from tho mouth of tho deepest mining shaft In tho world over reaches tho bottom. This has been demonstrated at tho famous Hcd Jacket shaft of tho Dig Calumet. Tho article, no matter what shapo or size It ma) be. Is Invariably found clinging to tho cast nldo of tho shaft. Ono day a monkey wrench was dropped, but It did not get to tho bottom It was found lodged against the cast sldo of tho shaft several nun drcd feet dntn. This Incident coming com-ing to tho a.tentloii of tho Michigan College of Mines, It was decided to mako a careful test of tho apparent phenomenon. It was decided best to oso a small but heay sphorlcal body, and a marble, tied to a thread was suspended nbout twelve feet below tho mouth ot tho shaft. When tho marblo was absolutely still, assuring that It would drop straight down, tho thread was bunion through by tho flamo of a candle. Tho marblo fell. I hut nt n point 60 feet from the surface sur-face brought'up against tho cast wall of tho shaft. The samo would bo tho case were a man to fall Into the shaft. While It would mean sine death, tho hotly, I badly torn, would bo found lodged In j tho timbering on tho east side. Members Mem-bers of the facult) of tho College of Mines nro now c ngnged In experiments experi-ments with n view of developing dnta as to tho thickness of (ho earth's crubt. It Is not hoped to solve tho porplcxlng problem of tho distribution of tho earth's mntter but It Is hoped lo add to tho Information collected concerning It. To this end tho Itcd Jacket shnft presents advantages possessed by no other plneo In tho universe Tho deep shafts In other parts ot tho country coun-try unrl in foreign Innds generally began be-gan nt nn altitude nnd end abovo or very llttlo below tho sea level, whereas where-as nt tho Calumet mlno tho Red Jacket Jack-et shaft starts In n comparatively low altitude and pierces tho earth's crust deeper and further below tho ocean level thnn nny other In existence. It Is hoped within a jcar to bo able to glvo somo Intelligent Information regarding re-garding tho Investigations. Lako Linden Lin-den correspondence St. Paul Dispatch. |