Do you remember performing this experiment back in high school?
Yep, the Ruler Drop Test measures our body's reaction time.
According to Wikipedia, Reaction Time is the elapsed time between the presentation of a sensory stimulus and the subsequent behavioral response.
Hehe. I know! Quite a lot right?
Well, BBC offers a simple flash game that makes the concept of Reaction Time easier to understand. All you have to do is dart sheep with tranquilizers as soon as you notice them running for freedom. The game measures the average time it takes for you to react to the moving sheep and, based on the results, calls you either A Turbo Charged Cheetah, A Rocketing Rabbit or a Sluggish Snail. Fun!
PLAY THE GAME HERE!
Oh by the way, dart too soon and you get a 3 second penalty. :)