As for darkness, where, now, is its place? ” You may be aware that for a long time, the view prevailed that light travels like a wave, like the ripples we can watch in a pond.
आपने शायद सुना हो कि लंबे अरसे तक वैज्ञानिक यह मानते थे कि प्रकाश, तालाब की जल - तरंगों की तरह यात्रा करता है ।