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Lunar and solar eclipses occur in pairs and with 2-week interval: Details
Eclipses of the Sun and Moon always occur in pairs at intervals of about two weeks. This phenomenon arouses interest and questions: why is it so? RBC-Ukraine, citing IFL Science, dwells on how ...
Dirac's Plate Trick, the Hairy Ball Theorem and more: Research probes physics of irregular objects on inclined planes
How gravity causes a perfectly spherical ball to roll down an inclined plane is part of the elementary school physics canon.