P-polarized light : r/AskPhysics - p-polarized light
NightRideThermal
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Thermalscope
I'm a firefighter and we just bought new TICs (Thermal Imaging Cameras). We did a training to familiarize ourselves with the new equipment and simulated searching for people in the station gym. While using it, I noticed that the display would show a silhouette of my body in the mirror. The way these cameras work (as I understand it) is not to look for an image to repeat on a screen, but to look for heat. I understand that my body gives off heat, and that's how it distinguishes people for the image. However, the "me" in the mirror isn't me. It's only a reflection. So, shouldn't the camera just show no heat coming off the wall/mirror?
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