soiboi studio has built a 4-digit, 7-segment display powered entirely by air pressure. Using microfluidic logic, silicone membranes, and vacuum-powered transistors embedded in a 3D-printed structure, the device mechanically latches segment states — effectively acting as a pneumatic RAM. Unlike electronic displays that rely on flickering, this clock physically 'writes' data to its silicone skin one digit at a time, storing state without any electronics.
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