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I can believe this because automatic doors seem more prone to having a hard time opening when I wear black clothes. It's not a big deal or anything, but I occa
by ravenstine 6y ago
I can believe this because automatic doors seem more prone to having a hard time opening when I wear black clothes. It's not a big deal or anything, but I occasionally have to step back and then forth again to get it to open. Is this a common experience of black people, or am I crazy?
- exikyut 6y agoOh, THAT'S why entrance barriers at supermarkets only occasionally fail, but fail consistently on a given day... Wait. Would this happen to PIR-based systems?
- ravenstine 6y agoI'm not sure. It seems at least possible with supermarket doors because those supposedly use a low-power microwave beam. With PIR, it still relies on a deflection of a beam, so I think it would be a problem with that as well, but I'm just guessing.
- detaro 6y agoPIR doesn't have a "beam", it detects temperature changes (i.e. you, a warm object, moving around). Clothes could play a role, not sure if the color though.