submarine
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Background: Imagine a boat: but someone added a canopy, and now it travels underwater (Fig. 1). Now you’ve got a submarine! That’s all the background you need. (Actual submarine construction may be somewhat more complicated.) The Issue: There has been interest lately in putting sails on oceangoing vessels again: this is proposed as a cheap…
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Background: Modern submarines use a periscope-like electronic camera (a “photonics mast.”) to view the world above the waves. The issue: The problem is twofold: If an adversary spots a periscope, there isn’t much doubt as to what’s under the waves: it’s a submarine (Figure 1). Periscope designs are apparently specific to each nation, so just…
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Background: One of the most common complaints about nearby construction is the potential for new structures to block the views of existing residents. The issue: Existing residents in a neighborhood occasionally attempt to block nearby construction (often coming up with extremely implausible reasons as a smokescreen), when the real reason is that they just don’t…
