In ancient Chinese agriculture of the third century B.C., the iron plow was invented to make it easier to work the soil. These were called "kuan" or moldboard plows and were eventually pulled by oxen.Know More
During the Zhou period, there were improved iron casting techniques leading to its use in creating tools and weapons. By 400 B.C., iron was prominent in agriculture. The Chinese grew soybeans and rice in rows, which were more effective by plowing. The plows were shaped like a "V" with a sharp point and side wings to cut and move the soil. At first, these plows were pushed by cultivators; however, by the first century B.C., cattle were used to pull them more quickly.
In the Western world, Jethro Wood became the first to patent the iron plow in 1819. This plow was made of interchangeable parts and was an important development in farming technology.Learn more about Inventions
The curling iron was invented in 1872 by Frenchman Marcel Grateau, who used metal tongs that were heated over a gas burner. The style he created with the tongs was called the Marcel wave.Full Answer >
The first electric curling iron was invented in 1959 by Rene Lelievre and Roger Lemoine. This electric version was an improvement on earlier versions of curling irons as it prevented hair from being singed and hands or heads being burned. It also meant that the temperature could be controlled for easier hair styling.Full Answer >
The first modern curling iron was patented in 1866. The patent was filed by Sir Hiram Stevens Maxim who interestingly was also the man who designed the machine gun.Full Answer >
The first records of pulley use date back to Mesopotamia, where people used rope pulleys for hoisting water as early as 1500 B.C. Plutarch mentions that Archimedes developed the first documented pulley system in the third century B.C.Full Answer >