Can an imminent laser strike ever be observable?

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The discussion centers on whether a laser strike can be observed before it impacts a target, particularly in the context of relativity. It is established that light travels at a constant speed, meaning that any light emitted from a laser cannot be seen before the laser itself reaches the observer unless there is a shorter path for the light to travel. The idea of "leading the target" is explored, but ultimately, it is concluded that without an indirect path or some form of intervention, the observer cannot see the laser before being hit. Additionally, the complexities of light behavior in space, such as scattering and the need for a medium to visualize the beam, are highlighted. Overall, the consensus is that observing the laser before impact is not feasible under the laws of physics as we understand them.
  • #101
While it is a military consideration rather than a physics consideration, often prior to firing a laser that would blast you out of the universe, there would be light other than the killing laser itself that would be emitted as the laser device warms up to fire, that would be visible briefly before the laser that is fired itself arrives.
 
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  • #102
ohwilleke said:
While it is a military consideration rather than a physics consideration, often prior to firing a laser that would blast you out of the universe, there would be light other than the killing laser itself that would be emitted as the laser device warms up to fire, that would be visible briefly before the laser that is fired itself arrives.
Actually, I can feel the infrared glow of incoming fire love missives even before the “post reply” button gets hit. AE was a really likable, humble man. I’m that far in.
 
  • #103
Nonsense thread is closed for Moderation...

Update -- thread is not working in either the SciFi forum or the technical forums, so it will remain closed.
 
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