Platform Scale, Railroad T-Rail, Multi-Coil Magnet, Mechanical Reaper

Thaddeus Fairbanks was born in Massachusetts. Thaddeus Fairbanks solved the problem of having counterweights that were too large. It was not easy to weigh heavy things because they only had tiny scales. He invented the platform in 1830. Fairbanks began selling the scales overseas. The platform scale changed how scales were used. Thadeus Fairbanks scales began to be sold throughout the world by the mid-1800s.

Robert Stevens was born in New Jersey in 1787. Robert Stevens invented the flanged t-rail after founding one of the first railroad companies in America in 1830. The t-rail is strong, durable, stable, and easy to install. The first railroad did not come to America until 1829. Railroads played an important role in the civil war.

Joseph Henry was born in New York in 1797. Henry became interested in Science at age 16. He became a Science professor in 1826 Henry built the world's strongest electromagnet for Yale University. electromagnets relay power. They made the telegraph possible. Joseph Henry improved the electromagnet by using insulated wire in 1830. He invented the multiple pole magnet in 1831.

Cyrus McCormick was born in Virginia in 1809. Cyrus' father, Robert, spent years trying to develop a mechanical reaper. Cyrus took inspiration from a British type. Cyrus invented the mechanical reaper. His reaper was patented in 1834. Pulled by a horse, it drastically increased the amount of crop that a worker could reap in a day.