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Tag: mirror

Was your home’s scenic view obstructed by a new building next door? This issue is now solved, thanks to the “window periscope!” Homeowners, rejoice!

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 want their current view blocked (Figure 1).

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Fig. 1: The residents in the blue house at left had a nice view (across vacant lots that they, unfortunately, did not own) until nearby construction blocked it.

Proposal:

Fortunately, modern technology provides a solution that will satisfy the existing residents and allow new construction to proceed: the “window periscope” (Figure 2), a submarine-style periscope that elevates the view from a particular window.

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Fig. 2: Here, we see the solution: a “window periscope,” shown in red. This periscope consists of a set of mirrors that elevating the view above the roofline of the adjacent building, thus preserving the existing view.

Conclusion:

This is a great plan for suburbs and cities alike! It may pose a moderate engineering challenge due to high winds, moisture, and the difficulty of accessing such a structure for maintenance. But that will just create more jobs, so it’s really a plus. (For example, one could imagine a “chimney sweep”-style profession dedicated to maintaining these window periscopes.)

PROS: Preserves existing views even when new construction is placed right next door, thus reducing the amount of NIMBY-ism that frequently stalls construction.

CONS: May make it difficult or impossible to open the window. If this system becomes widespread, it could lead to an “arms race” of dueling taller and taller periscopes between adjacent buildings. Evidently this situation has historical precedent in the towers of San Gimignano, in Italy.

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Supplemental Figure S1: This photorealistic diagram shows the problem in a more abstract fashion.

 

Improve print quality and generate an impressive high-contrast résumé with this amazing mirror-image two-sided printing plan.

Background:

When printing non-color text on paper, you generally want to print the text as dark as possible, for maximum contrast.

Proposal:

With this new “two-sided mirror printing” idea, text can be printed darker than is normally possible, with this one trick: the printer automatically prints a mirror image of your text on the opposite side of the page.

This mirror-image text contributes (very slightly) to darkening the overall text on the side that is intended to be read (Figure 1).

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Fig. 1: This sheet of paper has a “2” printed on both sides (mirror-imaged on the back), but the other text is printed only on one side. Note that the 2 is slightly darker than the other text.

This process has been empirically tested: it actually does work, but is only really noticeable if you hold the paper up to a light. See Figures 2 and 3 for experimental evidence.

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Fig. 2: A piece of paper that has been printed with overlapping black rectangles on both sides: here, we see only one side (a normal view of the sheet of paper without any backlighting).

 

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Fig. 3: Here, the same piece of paper from Figure 2 was held in front of a light. The overlapping printed regions (center) are dramatically darker than the regions that were printed on one side only (left and right areas). The numbers indicated are the pixel values as measured in extremely unscientific fashion (0% would be the JPEG’s lowest black value, and 100% would be the JPEG’s brightest white value).

Conclusion:

Although this method uses twice as much ink (and potentially twice as much paper), it produces text that is subtly higher contrast under very specific lighting conditions.

The brightness measuring technique shown in Figure 3 is methodologically questionable; I don’t recommend plagiarizing it in your Methods section if you are attempting to publish a research paper.

PROS: Increases text contrast, helps support the struggling printer supply industry, which has been hit hard by the diabolical “Paperless Office.”

CONS: May increase unsustainable usage of natural resources, hastening the transformation of the Earth into a barren and windswept wasteland, devoid of all life and completely silent except for the sound of printers attempting to automatically clear a paper jam.