2 ms·

This isn't necessary since the wave looks the same at all locations on Earth.

• magicalhippo 8y ago
  It can come directly from above, in which case you can't discriminate between from above or from below as it'll hit all arms at the same time if they're at a single location. You'd also have poor directionality.
  • thewakalix 8y ago
    Wouldn't the Spacetime Cube be just as vulnerable to the perpendicularity problem, though? It might have more sensitivity in near-perpendicular cases, but that's simply because there are more detectors.
    • magicalhippo 8y ago
      As mentioned, if multiple detectors are not spatially coinciding, then one can use the time difference between detection events as well.