Some early hand-cranked saws driven by chains were invented in the 18th century for the "symphysiotomy and excision of diseased bone respectively." In some cases, these saws were used to break through ...

Sure, the overall balance of these new Husqvarna chain saws has been improved, but that’s not all that’s changed. Modern chain saws are designed to reduce what’s known as “the gyroscopic affect”. A ...

"An extraordinary documentary about an extraordinary film." Dark Sky Films debuted the official trailer for a documentary film titled Chain Reactions, another cinema history geek-out doc from the ...