Astronaut Shubhanshu Shukla has used a water blob to explain Earth's shape. Discover the physics of surface tension, rotation, and inertia in this space and physics explainer.
Nancy Bullard on MSNOpinion
Science trick with water and a card goes hilariously wrong
In this video I try the classic water and playing card experiment, where you flip a full cup upside down and the card is ...
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