4 个月
Interesting Engineering on MSNShadow of light? Scientists make laser beam cast shadow for the first timeIn a discovery that challenges conventional optics, scientists have managed to make a laser beam cast its own shadow—a feat previously thought impossible, as light typically passes through other light ...
The new type of light scattering discovered by us naturally requires very powerful illumination for its observation. In our experiments, a beam of sunlight ... them showed the effect in greater ...
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