So there I am last night going through the channels and I come across this show on the History Chanel about illusions. This particular show was focusing in a lot on the art of illusion and cloaking. As I am now consumed by this show just waiting for some marvelous revelation to take place something did catch my interest.

They began to discuss how the Ninja used the own human eye against there victims. When looking ahead the eye sees about 60 degrees of vision. Our peripheral vision allows us to stretch it to about 100 degrees. Here is the kicker, when the human eye focuses in on any one object, our field of vision can decrease down to 6 degrees. This is how the Ninja could sneak up on you and "appear outta nowhere" to attack. 

I found this to be a very interesting bit of knowledge. So why is a safety guy writing about this. What happens when you are in your car? Part of driving involves doing this very task, focusing! Trying to read that street sign ahead, following the car in front, stair This could leave blind spots where pedestrians, motorcycles and even vehicles could sneak up on you.

Just some food for thought while you are traveling around this summer.