Dhairya Dand, a researcher at MIT's Media Lab, invented an LED "ice block light" to remind users whether they should drop their glasses when drinking.
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The core components of the LED light will be fixed in a waterproof cubic mold, which can then be placed in the wine glass. This LED "Ice Light" has an accelerometer that emits different colors depending on the amount of alcohol consumed by the user. The device also counts the number of times users drink and the total time of drinking, which in turn predicts when the user is drunk.
According to reports, the device can display three colors - green, orange and red, these three colors represent the three degrees of drinking. Green means the right amount, orange means there is danger of drunk and red means drunk. If the user's drinking exceeds his own limit, the device can also send a text message to the user's friend for reminding after the probe. 
