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Question of the Day on Twitter: "On Friday we asked, “On which #temperature scale is zero degrees considered the #freezing point of water?” Considering #Fahrenheit, Kelvin, #Celsius, and Romer, 79% answered correctly
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ECOPOWER SPORTS Navigation Explorer Compass For Expedition & Orienteering Perfect For Mountaineering or Hiking. Baseplate Liquid Filled, With Romer Scales & Lanyard. : Amazon.co.uk: Sports & Outdoors
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