Free Interactive App Makes Einstein’s Relativity Intuitive
A new free interactive app, Relativizer, lets anyone explore Einstein’s special relativity visually. Drag objects to near-light speed and see time dilation, length contraction, and more.
Physics
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Could White Holes Solve the Mystery of the Big Bang?
Could white holes—objects that only spit out matter—explain the Big Bang? Theoretical physicists explore a cosmic bounce from a previous universe’s black hole.
How Millikan’s Oil Drop Exercise Measured the Electron’s Charge
Discover how Robert Millikan’s classic oil drop experiment measured the electron’s charge, its controversial data selection, and its enduring legacy in modern physics and education.
Physics Paper 2: Students Face Toughest Exam in Years, Experts Weigh In
Analysis of the 2025 A-level Physics Paper 2 reveals increased difficulty and conceptual demands. Educators and exam experts discuss implications for students and universities.
When Your Boyfriend Gives You a Cloud Chamber
A physics student builds a DIY cloud chamber for his girlfriend, revealing cosmic rays. The viral gift blends romance with particle physics, inspiring wonder.
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