TRUTHR - The Dating App for 9/11 Truthers

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Note: The gravitational potential energy estimate comes from a calculation at http://911research.wtc7.net, a conspiracy website, which quotes 480 gigajoules per tower. With a simple unit conversion, that converts to about 114 tons of TNT. Bazant (Northwestern University) places the figure considerably higher, at about 800 GJ, or 191 tons of TNT per tower, 1.73 tons of TNT per floor. This will be the topic of a serious video this summer.