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A metallized paper/fabric radar corner. Folds down to wallet sized when not in use.
Pop it open, and those guys flying around in a chopper looking for you for two weeks because you got lost in a blizzard in the middle of nowhere might find you. If they know you have one.
Which, were this standard
equipment, they might.
Radar Reflector
http://www.davisnet...duct.asp?pnum=00153
one such [csea, Dec 21 2006]
Folding radar reflector
http://patimg1.uspt...5%2526RS=PN/6784825
You may need to install a .tiff renderer, see help on site. [csea, Dec 21 2006]
[link]
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It's called a Radar Reflector or Radar Target Enhancer or other such names. The are used on small, fibreglass watercraft to make them more visible on radar. I'm not sure if you can get a pocket-sized one but it wuld seem feasable that you could, all you need is tinfoil. |
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Active versions of these devices are also availiable that transmit a radar-frequency radio signal that shows up as a strong "blip" on radar. |
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A 30cm corner reflector has the same cross-section on radar as a 3m x 3m flat panel. |
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Seems a foldable version is patented see [links] |
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Good idea, though, and perhaps not well known. + |
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//looking for you for two weeks because you got lost in a blizzard in the middle of nowhere//
//if you don't plan on actually sleeping in the woods//
Huh? |
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// Isn't this what those shiny foil blankets are for?// |
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Very well, macguyver, provided you are: |
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A. Skilled in the twin arts of geometry and origami |
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B. Not using it to keep warm |
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and no, I'm pretty sure that isn't what they are for |
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