Did you know? Mass of loaded MQ-1 Predator military drone (1,020 kg) is 20 x Mass of heaviest allowable Flyweight professional boxer (50.8 kg)
Mass of water in the Fort Peck Dam (USA) (23 trillion kg)
/fact/mass-of-water-in-the-fort-peck-dam-usa
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"This is a fun and riveting book. Written in an accessible and engaging way, it is unputdownable." Frost Magazine
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