The adding machine was invented by French mathematician, physicist and philosopher Blaise Pascal. Pascal developed his mechanical device, which he named the Pascaline, in 1642. The apparatus, whose predecessor was the abacus, is regarded as the original digital calculator in that it operated by counting integers.
In 1671, the German mathematician and philosopher Gottfried Wilhem von Leibniz expanded on its design, resulting in the Step Reckoner, a calculating machine first built in 1673. The Step Reckoner could multiply as well as add by using repeated addition and shifting.
The first modern computer, the Analytical Engine, was not conceived until several years later in 1834 by English mathematician and mechanical engineer Charles Babbage.Learn More
Dr. Ian Donald invented the first ultrasound machine in 1957 and tested it on patients a year later. The discovery was made in Glasgow, Scotland, and by the end of the 1950s ultrasounds became routine in Glasgow hospitals.Full Answer >
Elias Howe invented the first sewing machine to receive an American patent. Howe's lockstitch mechanism performed 250 stitches per minute, more than what five expert hand-stitchers produced in the same amount of time.Full Answer >
Some accounts point to Charles Fredrick Wiesenthal of Germany, who received a patent in 1755 in England for a double-pointed mechanical needle device, as being the first to pioneer technology that would lead to the invention of the sewing machine. While not quite a machine, this was the first successful attempt at sewing performed by a mechanical device. The credit for an actual sewing machine is given to Thomas Saint, in the year 1790 in England.Full Answer >
The X-ray machine was invented by Wilhelm Röntgen in 1895. How he discovered the properties of X-rays is unknown, but the first X-ray image ever published was one that he took of his wife's hand.Full Answer >