Some medications may reversibly affect hearing. These medications are considered ototoxic . This includes loop diuretics such as furosemide and bumetanide, non-steroidal anti-inflammatory drugs (NSAIDs) both over-the-counter (aspirin, ibuprofen, naproxen) as well as prescription (celecoxib, diclofenac, etc.), paracetamol, quinine , and macrolide antibiotics . The link between NSAIDs and hearing loss tends to be greater in women, especially those who take ibuprofen six or more times a week.  Others may cause permanent hearing loss.  The most important group is the aminoglycosides (main member gentamicin ) and platinum based chemotherapeutics such as cisplatin and carboplatin . [ medical citation needed ]
The first known use of the metal detector was not for beachcombing or gold prospecting, but rather as an attempt to save the life of a . President. James Garfield had been shot at the Baltimore & Potomac Railway station in July 1881 by Charles J. Guiteau. The bullet was lodged somewhere in the president’s back and couldn’t be located by the attending doctors. Alexander Graham Bell, a visitor to the stricken Garfield, quickly developed a metal detector with the purpose of finding the bullet. Inspired by French inventor Gustave Trouvé’s earlier handheld device, Bell built a device based on electromagnetics. Unfortunately, the metal springs in the mattress Garfield was lying on confused the detector —or so Bell would later claim—and the 20th president of the United States died of an infection in the wound that September.