Posts

journeycosmos3

A Journey Into the Cosmos - FLRW Metric and The Friedmann Equation

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This article is part of our student writer series. The writer…
gps1

The Schwarzschild Metric: GPS Satellites

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  A Global Positioning System (GPS) device gives your…
qft_spacetime

Mathematical Quantum Field Theory - Spacetime

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The following is one chapter in a series on Mathematical Quantum…
spacetimetetrad

Tetrad Fields and Spacetime

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A spacetime is often described in terms of a tetrad field, that…

Relativity on Rotated Graph Paper

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This Insight is a follow up to my earlier tutorial Insight (Spacetime…

Spacetime Diagrams of Light Clocks

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We demonstrate a method for constructing spacetime diagrams for…
spacetime4

Struggles With the Continuum: Point Particles and the Electromagnetic Field

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  In these posts, we're seeing how our favorite theories…
spacetime

Struggles With the Continuum: Is Spacetime Really a Continuum?

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  Is spacetime really a continuum?  That is, can…