In a chronic cough, doctors will often rely on the interview and physical examination to aid them in determining what tests, if any, are appropriate in order to make a diagnosis. Many people will receive a chest X-ray to search for problems.
Why Protectionism Wonât Work for America. Though often well-intentioned, protectionism ultimately hurts many of those it is supposed to help. Henry Ford, founder of Ford Motor Company, poses with the Model-T. Ford's invention created wealth and jobs in American society, but the technology enabling that invention came from Germany's Karl Benz.
Weather Library > How lightning protection systems work. Lightning protection systems are the modern development of the innovation pioneered by Benjamin Franklin: the lightning rod. Today, lightning protection systems are in use on thousands of buildings, homes, factories, towers, and even the Space Shuttle's launch pad. This article will examine why lightning protection is necessary and what the systems can and cannot do. In This Article: - Components of a lightning protection system.