Two German students have invented a beer mat, or coaster, that uses sensor chips to determine when the beer glass it supports is empty and then radios the bartender for a refill. One of the students interviewed for the story suggested that lifting mugs from sensing mats could double as a voting system during karaoke competitions. [via] Link.
Beer mat knows when it is refill time
Two German students have invented a beer mat, or coaster, that uses sensor chips to determine when the beer glass it supports is empty and then radios the bartender for a refill. One of the students interviewed for the story suggested that lifting mugs from sensing mats could double as a voting system during karaoke competitions. [via] Link.
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