In 1797 Henry Cavendish, one of Great Britain’s leading scientists, built a contraption to weigh the world. At the time, Earth’s mass was unknown, as was its composition. Was it mostly solid rock? Did ...
Steven Collicott receives funding from NASA. He is affiliated with the Sub-orbital Applications Researchers Group Commercial Spaceflight Federation and CASIS/ISS-National Lab. Curious Kids is a series ...
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