The toothpaste that changes flavor with the weather It tastes
like mint when snow is falling and cinnamon when it's warm
outside. Is weather-report toothpaste the wave of the future? A
stripe in your toothpaste could mean more than a burst of
flavor, with the help of weather-reading technology.  If your
numbing morning routine could use a meteorological twist, David
Carr, a scientist at MIT's Media Lab, may have the solution: A
diverting toothpaste called "Tastes Like Rain" that changes
flavor and even color depending on the day's weather forecast.
Minty means it's colder than the day before, while cinnamon
means it's warmer. Should the paste develop blue stripes,
precipitation's on the way. It's all part of the lab's effort to
imbue everyday objects with "dynamic properties that can
intuitively communicate simple and relevant information." Is
this just a novelty prototype, or should Colgate be concerned?
How does it work? Carr attached a normal toothpaste dispenser to
a small "Linux computer that pulls in f