3295: Semaphore

Semaphore

|< < Prev #3295 (September 7, 2026)

Title text: The speed of light in air is 50% faster than in fiber, but it's a challenge to get the arms to move fast enough to realize the latency advantage.

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Explanation

This is one of 50 incomplete explanations: This page was created by an AIR-FREE SEMAPHORE GAP. Don't remove this notice too soon. You can help by editing the explanation!

Semaphore is a maritime signaling system involving the use of patterned flags held at specific angles.

This comic is similar to 2651: Air Gap.

Semaphore towers have historically been used for long-distance communication, with the Optical Telegraph chaining towers capable of displaying sempaphore-style signals, with a message being relayed between towers to allow cross-country communication faster than it was possible to travel, before electric communication technologies were available

Transcript

This is one of 34 incomplete transcripts: Don't remove this notice too soon. You can help by, editing the transcript!

[Two identical machines sit facing each other. Each one consists of a box with a wire connecting it offscreen, a webcam, and a machine with 2 flags. Each webcam is pointing at the other machine's 2 flags. Motion lines indicate that the machines are able to move the 2 flags independently.]

[Caption below the panel:]

Networking Tip: Separate sensitive components with a semaphore gap.

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