The cams have fans that keep them aloft. That is why they are frisbee like because fans are in the middle.
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"Crying isn't gonna get your dog back. Unless your tears smell like dog food. So you can sit here eating can after can of dog food until your tears smell like dog food or you can go out there and find your dog."-Homer in The Canine Mutiny
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"Crying isn't gonna get your dog back. Unless your tears smell like dog food. So you can sit here eating can after can of dog food until your tears smell like dog food or you can go out there and find your dog."-Homer in The Canine Mutiny