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Simple. A writewatch with some sort of proximity sensor, attuned to some unique aspect of the owner. It would play a tune when the user got to far away. Perhaps "We'll meet again" - giving a plesant reminder that it has been left behind.
Never Lose Anything Again
http://www.halfbake..._20anything_20again
I explored ideas relating to this, using RFID tags. It contains a link to a scientist working on this. [GusLacerda, Apr 30 2001, last modified Oct 05 2004]
[link]
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How about strapping it onto your wrist? |
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Why a wristwatch? I actually need this device for my pen, walkie-talkie, walkman, and car keys. |
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with a backup chain connected to earring and/or navel piercing |
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Hey, why not just tatoo a watch on your wrist. You'll
never lose it (unless you want to pay a plastic surgeon
$1000 a square centimetre to burn it off with a laser) and
it will be right twice a day - guaranteed. |
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I think there's a bakeable idea in here. |
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Instead of detecting proximity to the owner the wristwatch could work another device - say an electronic organiser - as could all the other devices you have. So if anything that you should have on you all the time starts fading into the distance it can set off an alarm. |
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This could be achieved cheaply with small supergluable transponders or expensively with a radio system like Bluetooth. |
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PeterSealy Is Generous Using Existing Technology? |
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[UnaB]: I actually knew that :-) One horse, no Starbucks, but we *do* have jewellers. I just thought you might be suggesting a new method of wealth distribution. |
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