DSN Safety inc.

http://pittsburgh.cbslocal.com//replacing-old-smoke-alarms/

An amazing innovation, a potentially revolutionary fire extinguisher. A fire extinguisher that uses no chemical, no liquids, no matter of any kind, in fact. The... invention of two engineering students at George Mason University. It uses only sound waves to put out flames, low frequency sound waves that extinguish fires. Join us tonight at 7 pm ET on Fox Business

Winter can be tough in Canada, even for the trains! Photo taken in Glacier National Park, "Like" their Facebook page here: Mount Revelstoke and Glacier national parks