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badformula

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badformula
A theatre contains three spotlights - left, right and front of stage. Each spotlight is controlled by it's own on-off switch. The three switches are in a back tech room with no line of sight to the...
Avatar Image
badformula
A theatre contains three spotlights - left, right and front of stage. Each spotlight is controlled by it's own on-off switch. The three switches are in a back tech room with no line of sight to the...

1 to 2 of 2