There are experiments you think you know the answer to - "It's got to be easy to eat six saltines in a minute, right?!" Some theories you may have heard but could never quite find a straight answer for - "Why can't I find this on Google?!" And others you don't want to even consider - "Please tell me there's no way bacteria from the toilet can actually reach my toothbrush" ... gross! In a new pop science series, Tom Papa and Seth Herzo assess the validity of these and other…