Channel: Fermilab

Category: Science & Technology

Tags: scientistmasse=mc2e=mc²bestepisodematterexplainedeinstein’s theory of special relativityspeedsmartintroductory physicsinertiameaningphysicsofmisused equationsspecial relativityparticlerelativisticexplainsclassenergye = mc2kinetic energyfamouslearndon lincolnequationphysicistgraphmomentumphotongeniusγian krasslightseriesscienceequalsfaster than lightfermilabeinsteinchartshirley templetheorygamma

Description: Physics students often ask how it is that a massless photon can have momentum. In this video, Fermilab’s Dr. Don Lincoln shows that the question arises from a misuse of equations and also shows that, when you think about it, it’s not surprising at all. Why E = mc2 is wrong: youtube.com/watch?v=eOCKNH0zaho The origins of mass: youtube.com/watch?v=x8grN3zP8cg Further reading: opentextbc.ca/universityphysicsv3openstax/chapter/relativistic-energy hyperphysics.phy-astr.gsu.edu/hbase/Relativ/releng.html Fermilab physics 101: fnal.gov/pub/science/particle-physics-101/index.html Fermilab home page: fnal.gov