h a l f b a k e r yResident parking only.
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Fire is fast relative to our time scale. |
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What if something is smoldering or burning in a hidden
place, enough to set off the smoke detector, but without
visible flames? Then it gets marked as a false alarm until
it's big enough to be seen, by which point it could be too
late. |
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What if it's the lithium-ion battery in the camera-roomba that catches fire ? |
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