Well I just finished a good bit of editing  I havent had a chance to go through and do all the tagging and referencing yet since work calls but I am extremely confident in the scientific factual basis of everything stated in here  The referencing can pretty much be all made to the book Particle Imaging Velocimetry A practical guide by Raffel Willert Wereley and Kompenhans if someone can add it  Also not sure how to exactly do that as it all can be found in numerous scientific journals databases etc but is so conveniently placed all in that one book  The only thing I am unsure about as I have no experience with is Molecular Tagging Velocimetry  To put it simply I would like to keep technique defects in the summaries but I dont know what this ones is  To put is bluntly the description as it is now is too good to be true  I know it has defects and problems I dont know what they are  The fact is the technique was developed in ish and is not in widespread use  If the description were accurate everyone would use it  I have met or heard of not one person using it which means there is some big flaw in the technique that if someone can find be my guest to add it  Everything else please post on discussion page before editing critical information as I am positive what I have said can be completely defended but am open to solid arguments  I wont be pigheaded about it  Also anyone with knowledge of tomographic PIV please expand the section  It is a volumetric analysis technique that I know of and know its new but know nothing about