new icn messageflickr-free-ic3d pan white
Needle Exchange | by Todd Huffman
Back to photostream

Needle Exchange

The contents of a needle exchange kit.

 

I found it interesting they include multiple needles of different bore sizes. The viscocity of drugs can be radically different, i.e. methadone is more viscous than heroin which is more viscous than cocaine. Pushing methadone through a small needle is impossible.

 

Here's a pipe pressure loss calculator to play with...

www.efunda.com/formulae/fluids/calc_pipe_friction.cfm#calc

41,679 views
22 faves
13 comments
Taken on January 2, 2008