The stratosphere (/ËstrÃ¦tÉËsfÉªÉr, -toÊ-/) is the second major layer of Earth's atmosphere, just above the troposphere, and below the mesosphere. About 20% of the atmosphere's mass is contained in the stratosphere.
The chainsaw is a highly effective and efficient tree and branch cutting power tool. It works with an engine, referred to as a power head; powering a metal chain, driven by a centrifugal clutch, with a chain moving around a groove in the guide bar at fast speeds.
One of the most common ways I see people mis-using a chainsaw is when they are cutting down large trees. Hinge-cutting is a popular technique for enhancing deer habitat, but this technique is best for small trees that you can easily handle. Itâs not safe to attempt to hinge-cut large trees, for reasons I will explain.