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.
Definition of inertia. Isaac Newton is the one who formulated a great definition of inertia. Also known as Newton's first law or law of inertia, Newton restated Galileo's idea. Below is what Newton said in simple terms: If an object is already moving, it will keep moving in a straight line at constant speed unless a force stops it.