the timing to give the warning should be decided in consideration of t m and the reaction time of the operator t r . the reaction time is estimated as t r =0.4 sec based on reference . we have the advantage of living in the ever expanding world of social media and news being delivered seconds from news happening. it also touched a low of 10,823.80 during the day. none of those little guys, he says, can deal with his height and size. we were both blown away with how beautiful your place is....we will be back! 