I've always wondered: why do our veins look blue when our blood is red?
- Written by David Irving, Adjunct Professor, University of Technology Sydney
Our veins only appear blue through the skin, they're actually red. from www.shutterstock.com
This is an article from I’ve Always Wondered, a series where readers send in questions they’d like an expert to answer. Send your question to alwayswondered@theconversation.edu.au
I’ve always wondered why our veins are blue, when blood is...
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