美国有线新闻 CNN 2014-03-26（在线收听）

 Pastern during informantation builds these deeper in  the five second rule but some researchers in Britain say that rule is not entirely in urban miss, they did they drop food on the floor for different amount time and then pick it up to see how much material was on it . They found the time dose affect on the food suffer few seconds on the floor was likely to have less bad material on it than food suffer longer. In the study, the type of floor matter, carpet floors were least likely to transform bad material, lamed material floors were most likely. But what in five second rule do can for something the professor on the study said any drop food can pick up  infectious bacteria  depending on how nasty the floor is, you probably heard the reports the public wifi for internet connections airport and coffee shops isn't always secure that hacker can use it to tipping your phone and computer, but this technology is more and more advance. do your personal information could be a risk will you just walk around with wifi turn down.  You can see three advances of few our phones