circulatory system

There is an updated version of this post here: "Is Blood Ever Blue, Science Teachers Want To Know!" Why ask the question, "Is blood ever blue?" According to one of the leading experts on the human circulatory system, blood flowing through veins is blue. I'm not going to mention any names. All I'll say is this: A person I know visited a major research center last year and saw a demonstration of organ removal and some other experimental stuff. A person also visiting asked the famous high-level researcher doing this work "Is blood ever blue?" What he said was not recorded in detail, but it…