In 1898, Miller Reese Hutchison created the first electric hearing aid. His design used an electric current to amplify weak signals. In 1913 the first commercially manufactured hearing aids came to market. This hearing aid is a Christmas miracle for Donna Payne … and we were there as she heard…
The first straight-eight was conceived by Charron, Girardot et Voigt (CGV) in 1903, but never built. Great strides were made during World War I, as Mercedes made straight-eight aircraft engines like the Mercedes D. IV. A straight-four engine (also called an inline-four) is a four-cylinder piston engine where cylinders are…
An Irish doctor (named Robert Bentley Todd) was said to have prescribed his patients with a mixture of hot brandy, water, cinnamon, and sugar. More than likely, though, the real story is likely a combination of the two. Perhaps Dr. Todd learned of the “taddy” in India and used it…
Today, scientists from different countries, for the most partrecognize the fact that the first Old Slavic alphabet was still the Glagolit, created by Cyril as early as 863 in Byzantium. He presented it in a fairly short time. And another, different from the previous one, the alphabet Cyrillic was invented…
The first aircraft evacuation slide was developed and produced by Air Cruisers, founded by James F. Boyle, inventor of the World War II life vest, the ” Mae West “. The patent for the inflatable escape chute assembly was submitted by Boyle in 1954 and the designs was patented in…
The ambrotype was based on the wet plate collodion process invented by Frederick Scott Archer. Ambrotypes were deliberately underexposed negatives made by that process and optimized for viewing as positives instead. In the US, ambrotypes first came into use in the early 1850s. In 1854, James Ambrose Cutting… By the…
David Brooks was a Philadelphia, Pennsylvania inventor, remembered for an innovative insulator for telegraph lines in 1864 and 1867. While cellulose insulation is one of the earliest insulation materials still used today, it didn’t become a popular choice until the 1950s. In the 1930s fiberglass insulation was invented by the…
Boots was established in 1849, by John Boot. After his father’s death in 1860, Jesse Boot, aged 10, helped his mother run the family’s herbal medicine shop in Nottingham, which was incorporated as Boot and Co. Ltd in 1883, becoming Boots Pure Drug Company Ltd in 1888. So, let’s start…
The iPad is a brand of iOS and iPadOS -based tablet computers developed by Apple Inc. The iPad was conceived before the related iPhone, but the latter was developed and released first. Speculations of the original iPad began in 2002 and surrounded its development, operating system, and release, prior to…
The cannon first appeared in China sometime during the 12th and 13th centuries. It was most likely developed in parallel or as an evolution of an earlier gunpowder weapon called the fire lance. Age 26 – 40: digestion and the bismuth meal Age 40 – 46: bodily effects of emotional…