GPS systems are great. You start your car, plug in your destination, and the device tells you the shortest and fastest way to get from point A to point B. Here is a GPS with a little added feature. It will tell you whether you have had too much to drink to drive safely. I am not certain how accurate that could be; everyone’s body

chemistry handles alcohol differently. And different states have different “legal” limits when it comes to alcohol in the blood. But it is a good concept, I guess. “When you first start the application it calibrates; accounting for the already present amount in the environment and the sensor, and next it asks you to blow.”

via navigadget.com

Original post by Allanda