h a l f b a k e r yLeft for Bread
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A tiny sensor capable of measuring fluid levels is placed in a drinking glass. A small radio transmitter in the base sends a signal to the reciever, alerting the server of diminished beverage quantities. The server can then appear with a refill just as the customer finishes.
Intelligent beermat
http://news.bbc.co....hnology/4298344.stm
[angel, Sep 30 2005]
[link]
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Hmm, reminds me of a cup (given away with Coco Pops) which played a tune when it was raised... You could make your cup by modifying one of those as follows:
1) Add a timer
2) Change the circuit so that if it remains on the table for more than say 2 mins { => You've fogotten about it (very unlikely) or it's been left there 'cause it's empty!}, it plays a tune. |
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