The generator also unexpectedly produced a spark!
As top physicists of the time, how could Faraday and others not realize what this represented?!
However, this wasn't the end.
Xu Yun beckoned again, and Wheat quickly brought up several polarizing lenses, handing them to Xu Yun.
With a slight flick of the polarizing lenses in his palm, Xu Yun's expression was somewhat nuanced.
Speaking of the use of polarizing lenses, surely many students are familiar with them.
They allow light vibrating in a specific electric vector direction to pass through while absorbing the light vibrating perpendicular to it, exhibiting dichroism.
That is, dλ/λ=cosθdn/n.
Where n is the refractive index with gradient changes, resulting from the gradient changes in flow field speed between different media, n=1/√(1-u²/c²).
In layman's terms, after natural light passes through the polarizing lens, the transmitted light essentially becomes plane-polarized light, its intensity reduced by half.
