Although Fresnel did not know that electromagnetic waves are light , he managed to construct the first coherent light theory in the world . Although Fresnel did not know that electromagnetic waves are light , he managed to construct the world 's first coherent theory of light .
Walaupun Fresnel tidak tahu bahawa gelombang elektromagnet adalah cahaya, beliau berjaya membina teori cahaya koheren pertama di dunia. Walaupun Fresnel tidak tahu bahawa gelombang elektromagnet adalah cahaya, dia berjaya membina teori pertama koheren cahaya di dunia.