3 ms·

Naive question, but wouldn't using a hyperbolic arc instead of a parabolic arc completely solve the issue?

• tajen 10y ago
  Or have windows that don't reflect the sun downwards.
  • kijin 10y ago
    Then you're shooting death rays in the sky, endangering aircraft like a thousand laser pointers.
    • firethief 10y ago
      Inverse square law. Any aircraft close enough to be affected are having a bad problem anyway.
      • MertsA 10y ago
        Yeah but that's with respect to the focal point. The focal point could be a good ways up in the air.