this post was submitted on 17 Apr 2025
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You see the light waves reflected off of various materials.
That’s it. And, indeed, you see light. That’s what your eyes do.
Little smart ass knowhow: With your hands, you can feel light.
You feel infrared light as heat. Not visible light though. Just heat up your cooker stove and it emits a bit visible red and a lot infrared light. Don’t touch just keep your hand close to the stove. Now you feel the IR-„light“.
Or just take an IR-lamp for your neck pain. You‘ll feel the light that’s emitting with your hands.