Is is a typo? The 1985 edition of Schutz:(adsbygoogle = window.adsbygoogle || []).push({}); A First Course in General Relativity, p. 52, equation 2.37, which is supposed to express the idea that "photons have spatial momentum equal to their energy":

[tex]\vec{p} \cdot \vec{p} = -E^2 + E^2 = 0.[/tex]

Shouldn't this be

[tex]\vec{p} \cdot \vec{p} = E^2[/tex]

or

[tex]E^2 - \vec{p} \cdot \vec{p} = 0?[/tex]

**Physics Forums - The Fusion of Science and Community**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Printing mistake in A First Course in General Relativity?

Loading...

Similar Threads - Printing mistake Course | Date |
---|---|

I Einstein's E=MC^2 Mistakes | Nov 16, 2017 |

B What course would explain why c is a hard limit? | Jul 13, 2017 |

I [itex]f(R)[/itex] gravity field equation derivation mistake? | Jul 4, 2017 |

I Derivation of length contraction | Jun 16, 2017 |

I Mistake in derivation of the Schwartzschild solution | Oct 19, 2016 |

**Physics Forums - The Fusion of Science and Community**