Stud welding uses a type of flux called a ferrule, a ceramic ring which concentrates the heat generated, prevents oxidation and retains the molten metal in the weld zone. The ferrule is broken off of the fastener after the weld is completed.
Inertia is a nice and easy physics lessons for kids and children. In physics, inertia is part of Isaac Newtonâs First Law of Motion simply stating that a particular object at rest will stay in that state unless otherwise a force is put on it for the object to move.
By Andrew Zimmerman Jones. Definition: Inertia is the name for the tendency of an object in motion to remain in motion, or an object at rest to remain at rest, unless acted upon by a force. This concept was quantified in Newton's First Law of Motion.