lsanderson (
lsanderson
) wrote
2013
-
04
-
25
07:01 pm
So that's why steam locomotives puff out the smokestack:
http://en.wikipedia.org/wiki/Blastpipe
who knew!
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lsanderson) wrote2013-04-25 07:01 pmlsanderson) wrote2013-04-25 07:01 pm
