Please add more MSHA Underground Mining Videos.

Thanks

can you please send me the password for the video principle of refrigeration?because im going to use it as a visual representation of our report regarding that topic..i hope you understand..need it as soon as possible..im a student of POLYTECHNIC UNIVERSTIY OF THE PHILIPPINES. I find your video interesting and enough to explain the principle behind it..thanks

This is amazing. You all are brilliant for coming up with this idea. Thank you.

Your channel is a treasure.
This is one of the fine components of
freedom;excorsized very effectively.:)

Greetings from the Black Hills of South Dakota! I am the Cordinator and Crew Boss for the Lead Firewise. Just thought I'd say keep up the good work you folks are doing. WT

Your comments are most welcome! Check out the playlists for different government agencies we've obtained video from.