A reflective tint layer will be placed before the computer screen. When screen projects an empty black background, the tint will be highly reflective and will act as a mirror. Upon user commands, the screen will project presentation that will penetrate the tint hence becoming visible to user.
The tap will be rigged to two switches that will convey two commands. Merely two commands are required for this installation. First, to initiate the countdown when the tap is turned on and second, when turned off, to start playing the presentation.
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