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Show SCIENCE SKETCHES I CHICAGO TEENS really "dig" ' Indians. In fact, they recently used ;i shovels and trowels to help un- ; cover information about Chi- ; cago's little-known prehistoric In- ,; Ndian population. The excavation : is a high point in the Field Mu- ? seum's program designed to give gifted high school students an i otherwise unavailable program in . anthropology. The "dig" is an In- . dian hunting camp dating be- tween A.D. 1100 and 1600. OVERWEIGHT PEOPLE hare a "high cost of living," not only economically, eco-nomically, but physically. University Univer-sity of Wisconsin medical researchers re-searchers demonstrated that the obese require more effort to walk, stand and breathe. Even sleeping involves work for someone who is fat. Results are higher blood pressure, pres-sure, faster heart rates and abnormal abnor-mal breathing patterns. THINK WELDING is slow? Then you are behind the times. New fully automatic gas-shielded, flux-cored processes achieve remarkably fast rates, consuming as much as 34'i feet of wire electrodes a minute on long, continuous welds, says National Cylinder Gas, Chicago. |