Mechanical reapers didn't exist in the 1800's and weren't made until the early 1900's. So they didn't cost anything.
Cyrus McCormick.
It was invented in Middle Ages. Around 1300 AD.
John Logie Baird was a Scottish engineer, innovator and inventor. He invented the world's first mechanical television, the first color television system the first color television picture tube.
the Z1 was created by Conrad Zuse in 1936, its considered to be the first electro mechanical binary programmable computer
John Mauchly, a mechanical engineer, co-invented with John Presper Eckert, the first general-purpose electronic digital computer, called the ENIAC. Later, the duo invented the first digital electronic computer available for sale to the general public, called the UNIVAC.
Cyrus McCormick.
The reaper was a horse drawn farm implement invented by Cyrus Hall McCormick in 1831 to cut small grain crops. The mechanical reaper replaced the manual cutting of the crop with scythes and sickles. Developed to cut down wheat more quickly and more efficiently.
The first successful mechanical reaping machine, the reaper, was made by the American inventor Cyrus McCormick and Jo Anderson in 1831.
Cyprus McCormick
It helped cut the wheat in a shorter time.
who invented the first mechanical digital calculator
McCormick was 25 when he patented his ideas for the reaper. This does not mean he invented it, many other individuals had their own ideas that McCormick improved upon, much credit should be given to his father Robert McCormick who worked for many decades on improving earlier designs.
He is often credited with being the inventor of the mechanical reaper or harvester.
Reaper Maybe the metal plow
The first mechanical cooling system was invented by Dr. John Gorrie. -Qwasas
1812
The introduction of the 1st mechanical calculator was invented in Europe. This type of calculator production then spread world wide. The first ever was invented by Willhelm Schickard.