Lasers Could Generate Shields Out Of Thin Air

Lasers could turn Earth’s atmosphere into a defensive, or offensive, tool in the future of warfare.

Proposed by BAE Systems, a defense and aerospace company founded in the United Kingdom, the conceptual Laser Developed Atmospheric Lens (LDAL) would use lasers to ionize and heat the atmosphere in a way that temporarily endows small pockets of it with useful characteristics. This could take the form of an aerial lens used to magnify objects far away, or even a kind of refractive shield to s

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