And, they will be everywhere! The world is going to sensors in a big way. You currently interact with 50-100 daily. By 2020 this will be something like 1000 or so. Impossible you say. No, actually this is happening. Semico Research is estimating that 30 billion will be shipped in 2017. Welcome to your Brave New World.
Sensors are becoming more prolific and changing the way that you interact with your world. That smart phone in your pocket is a good example. A lot of what you can do with it is the result of sophisticated sensors that are built into it. For instance, the accelerometer inside determines the orientation in which you are holding the phone so the screen can switch making it easier to read. It also makes games that you control by moving the phone and applications like a bubble level possible. The accelerometer is actually a very sophisticated piece of technology, which is true of many of the sensors that are being developed today.