Using high-speed videos, Pedro Reis and Roman Stocker from the Massachusetts Institute of Technology has shown that lapping cats are masters of physics. Every flick of their tongues finely balances a pair of forces, at high speed, to draw a column of water into their thirsty jaws.
Electrical and computer engineers designed a system based on magnets that enables disabled persons to use the tongue to control the movement of a wheelchair. Article with a video.
In an advance toward an "electronic tongue," scientists are reporting development of a disposable, low-cost sensor that is capable of quickly and accurately identifying 14 common sweeteners based on easy-to-read color changes.
With the tongue drive control system, it is now possible for people with a spinal injury to precisely control their wheelchair. While a magnet is attached to the tip of the tongue, a computer interprets the fluctuation of the magnetic field resulting from tongue moves and reacts upon.