Edwin and Robert Stevens developed the first commercial railway in the United States. However, railway transportation predates the development of the steam engine, which was invented in 1698.
Railways were first developed in Europe prior to the 17th century. Horses were used to pull carriages along wooden or iron rails. However, this form of railway was not very fast. Englishman Thomas Savery developed the first steam engine in 1698 as a way to move water out of mine shafts. By the 1800s, Savery's technology had been improved by inventors. The first steam engine locomotive was built by Richard Trethivick in 1803. George Stephenson built the first railway in 1825 after a number of years working specifically with locomotives for coal transport. In the same year, Colonel John Stevens designed the first American locomotive. His sons, Edwin and Robert Stevens, later developed the first American commercial railroad.Learn More
The first drum washing machine was patented in 1851 by James King. The machine worked similarly to a modern-day machine, but it was operated with a hand crank.Full Answer >
The invention of the first tablet PC, or personal computer, is credited to three men: Alan Kay, Steve Jobs and Bill Moggridge. Computer specialist Kay created the concept for the tablet PC in the early 1960s, which he called the Dynabook, but need technical expertise to build the product. Technical enthusiast Jobs analyzed Kay’s product in the 1970s, and lent a hand in determining the components needed to build the machine.Full Answer >
Maps developed simultaneously in several parts of the world, so it is not clear who invented them. Though other examples of early maps exist, a 14,000-year-old carved stone tablet found in northern Spain in 1993 is the oldest depiction of geographic and other features.Full Answer >
The first working loudspeaker was invented by Alexander Graham Bell who incorporated the device into his other famous invention, the telephone. Bell was awarded the patent for the telephone in 1876 with the loudspeaker device included in the patent. However, the initial concept for the loudspeaker device was first developed in 1874 by a German inventor named Ernst W. Seimens.Full Answer >