Teeth that think

Scientists at Princeton and Tufts are working on a super thin tooth sensor (a kind of temporary tattoo) that sends an alert when it detects bacteria associated with plaque buildup, cavities or infection. It could also notify your dentist, adding an extra layer of social pressure to make an appointment. The sensor may have wide-ranging use: the researchers have already used it to identify bacteria in saliva associated with stomach ulcers and cancers. While the sensor won’t last long on the surface of a well-brushed and flossed tooth, Michael McAlpine, the project’s leader, says that the sensors will be inexpensive enough that you can replace them daily.

The Anti-Slouching Screen

The intelligent screen tells you how to sit in front of it while working. 

If you slump down when you’re typing on an ErgoSensor monitor by Philips, it’ll suggest that you sit up straighter. To help office workers avoid achy backs and tired eyes, the device’s built-in camera follows the position of your pupils to determine how you are sitting. Are you too close? Is your neck tilted too much? Algorithms crunch the raw data from the sensor and tell you how to adjust your body to achieve ergonomic correctness. The monitor can also inform you that it’s time to stand up and take a break, and it will automatically power down when it senses that you’ve left.