Vampire detector

DIY project which will help you to see who is the vampire in a group of people

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Are you afraid of vampires? Me too. That's why I invented this detector.
Here is how it works:
You know that the vampire's image has no reflection, so they are invisible when you look them in the mirror.
Now look at my drawing - this is a small box, but here it is drawn without the cover, to show the principle of operation.
You look through the hole A and you see the scene which is reflected from mirrors D and E (blue arrow, A-B). Vampire is, of course, invisible for you, but when you press the button F, then you see the raw scene without the mirrors (red arrow C), and you see the vampire! So all you have to do is to press and release the button F repeatedly (there is the spring, not visible here) and all the people will stand steady, except the vampire, which will blink!
Ingenious, huh?
(For those who took this too seriously: I am joking)
(Or am I?)

Enjoy this project?



DainBramage wrote 05/19/2015 at 02:54 point

I thought that you might be able try another type of detection involving the measurement of reflectivity, but then I remembered that real vampires don't sparkle.

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Aleksandar Bilanovic wrote 05/18/2015 at 13:36 point

Great project! I will build one of those as I'm sure that vampires are living in old watermill in my mother's village (as I was told by villagers there).

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Jasmine Brackett wrote 05/18/2015 at 22:10 point

Aren't the villagers worried about the family of trolls nearby? :)

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Aleksandar Bilanovic wrote 05/18/2015 at 22:55 point

;-)) no, troll family lives some 4000km north west, in good kingdoms of Essex, Sussex, Wessex and Northumbria ;-)

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Jasmine Brackett wrote 05/19/2015 at 00:54 point

And you have to watch out for the leprechauns.

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Voja Antonic wrote 06/09/2015 at 09:35 point

Don't worry, I'm working on leprechaun detector project

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