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If you''ve never checked on your app subscriptions, I don''t blame you. It''s a feature buried pretty deeply in your iOS device. But then, you could discover an ...
An easytounderstand explanation of centrifuges. Clearly explains the difference between centipetal and centrifugal force.
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A belated New York Times obituary pays tribute to inventor Frances Gabe, who designed, built, and lived in "the world''s only selfcleaning home." Gabe comes ...
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