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  • Ah so my intuition was correct that the laser experiment was wrong, the extra light we see was from the scattered light and not from the laser beam. So if we were to somehow minimize the scattering from the source and just keep the beam, we would not see the light on diffraction grating.

    If we had to really bend the main beam, we would have to introduce potentially some medium where light travels slower(glass/water) to beam on one side of the reflection... in which case the original path would have almost 0 energy and almost all energy has been transferred to a new path.

  • Ask Science @lemmy.world
    cicadagen @ani.social

    Questions on Light takes all paths

    Hey, so I just watched the Veritasium video "Something Strange Happens When You Trust Quantum Mechanics" (https://www.youtube.com/watch?v=qJZ1Ez28C-A), and it got me thinking.

    The video talks about how light takes every possible path and ends up following the one with the least action. Super cool concept. But then, around the 30-minute mark, there’s this wild experiment where a laser is aimed at one side of a mirror, and there's a diffraction grating placed on the other side. Even though the laser isn’t hitting the grating directly, you still see light coming out from that side. That part really tripped me up.

    So here’s my question: Where is the

  • The Last Conversation

    Between the last human and their offspring whilst looking at the lifeless society.

    "In the ages of AI, the first human who lost hope had turned themselves into a bot. And thus this marked the beginning of the dark ages for the Sepians, where identity began to blur and the soul became a forgotten myth. Towns once filled with laughter and debate fell silent, their citizens drifting further into digital shells, choosing simulated perfection over imperfect humanity. The skies dimmed, not because the sun had faded, but because no one looked up anymore. The Sepians, a once vibrant and curious people, now wandered aimlessly through the synthetic corridors of their own making, slowly forgetting the warmth of touch, the thrill of uncertainty, and the power of genuine connection."