Today it's all about human blood!
There is actually iron in it and therefore I asked myself: Is our blood really magnetic? Before I can validate that, it's time to donate blood.
Here's the Link to the Blood Donation Service of University of Cologne:
http://transfusionsmedizin.uk-koeln.d...
A lot of other exciting experiments, explanations and life-hacks can be found in my book "Phil's Physics" (Philip Häusser, 2016): http://phils-physics.de/bestellen
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