<u><em>Cold welding, or contact welding, is a solid-state welding process that requires little or no heat or fusion to join two or more metals together. Instead, the energy used for creating a weld comes in the form of pressure. During the cold welding process, unlike with fusion welding processes, no liquid or molten phase is present in the joint as can be seen in other techniques including arc welding, friction welding or laser welding.</em></u>
Explanation:
Studying too much won't really fry your brain … but it may cut into efforts to do your best work. Roman Gelperin, author of Addiction, Procrastination, and Laziness, explains that you can study to the point that you no longer retain information.
