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Mathematics. Online Tutoring, Homework Help and Test Prep in Math, Science, English and Social Studies - Tutor.com for Families. Welcome to INFOMINE: Scholarly Internet Resource Collections. Chromoscope - View the Universe in different wavelengths. Download Details - Microsoft Download Center - Microsoft Mathematics 4.0. Project Tuva: Enhanced Video Player Home. Public.Resource.Org. ACICS. What the Bleep Do We Know!? & What the Bleep!? - Down the Rabbit Hole. An Interactive Periodic Table of the Elements.
United States customary units. United States customary units are a system of measurements commonly used in the United States.
The U.S. customary system developed from English units which were in use in the British Empire before American independence. Consequently most U.S. units are virtually identical to the British imperial units. TEDx talk on the flaws of math books.