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 ...

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 ...

This class demonstrates how to operate efficiently using firefighter safety research to enhance fireground tactics. Controlling the flow path is the cornerstone of the course. Students receive ...

Reick, a regional fire chief in Germany, looks the differences in how Europe studies flow paths and ventilation as well as LODDs compared to their US counterparts. Michael Reick, Voluntary firefighter ...

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 ...