The first seismograph was built by Zhang Heng nearly two millennia ago, in the days of the Han Dynasty. It could indicate the general direction of an earthquake’s epicenter by dropping a bronze ball ...

In Part 1 of this series, we covered the fundamental concepts and principles incorporated by flow meters along with various flow measurement methods used in mechanical flow meters. Part 2 covers the ...

UL Firefighter Safety Research Institute – This Tactical Consideration video featuring UL FSRI’s Robin Zevotek explains why the flow path and suppression must be considered together. The flow path of ...

A Note from Jim: The stated objective of this story is to introduce you to some notions that may be of imme-diate help to circle track engines operating under rules that allow non-OEM parts. It is ...

After the deadly 2017 fire season, there should be no question that the current wildland fire environment is a very complex and dynamic arena. There are numerous reasons for this complexity, some of ...

Over time, and in this column, we have shared some of the important factors in how the delivery of air/fuel charges or raw air, as in the case of dry flow when fuel is admitted into the combustion ...

Any experienced firefighter or officer will tell you that firefighting requires dedication to drilling and learning. For good reason, hands-on drills that are performed in the fire station are front ...