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Fog systems are very efficient methods of cooling air but also are more expensive than mist systems and require more maintenance . In the early ' 60s , when I was a new principal , we had just begun to use machines instead of knitting needles ; Sylvia was out in front of the crowd leading the way . They have described how information about plant design and layout and about the types and quantities of chemicals stored at specific locations in the plant reveal something about the steps of manufacturing microprocessor chips . Although she was actually dancing on the newer broader platform , she wished to preserve that Nineteenth Century Romantic ideal of balancing on the smallest , pointiest little tip . Applying to professional or graduate school , and need a quick answer to a question without the hassle of coming down to the Career Center ?