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We all know that light bends when it travels through glass, water, or other transparent material - that's how a microscope, lighthouse and spectacles work! And you might even know that light...
Suppose you have a ball covered entirely with hair and you're trying to comb the hair so that it lies flat everywhere along the surface. If the ball were a donut, or it existed in two...
To make a laser, all you need to do is give a big collection of atoms enough energy so they're excited and ready to emit light. Once one of them spontaneously emits a photon, it'll...
I see it i see it! Its good now no more seaweed in the way for it. What a big one! The anchor isnt in the water right? The anchor isnt in the water right? Take it up! What do you think about this? Its...