When the University of Virginia hospital had problems with some of their blood samples in their pneumatic tube system, they turned to one of the most increasingly ubiquitous and handy tools so many of us now have at our disposal: the smartphone.
The pneumatic tube experiment has been written up in the journal Clinical Chemistry. You can find the video footage which supplements the article here. Could this be the first time that tube cam footage has been submitted as scientific evidence??
Read more in the UVA Today article.