Scientists Discover Lasers Can Block Light And Cast a Shadow - ScienceAlert
Shadows are a natural consequence of opaque walls in an illuminated Universe.
Light shines; photons travel until they hit an object through which they cannot pass; this blockage creates a shadow, a … [+3791 chars]
Light shines; photons travel until they hit an object through which they cannot pass; this blockage creates a shadow, a … [+3791 chars]
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