- draughts (checkers) is older than chess
- dreamt is the only word that ends in mt
- dry ice transforms directly from being a solid to a gas
- duck eggs are the largest eggs in the world
- due to gravitational effects you weigh is slightly less when the moon is directly overhead
- during a total solar eclipse the temperature can drop by 6°C (20°F)
- DVDs are physically the same size as a CDs but can store 13 times more data
- each red blood cell lives an average of 4 months and travels between the lungs and other tissue 75,000 times before returning to bone marrow to die
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