People began to use inclined planes before recorded history. The wheel, the lever and a number of other simple machines predate writing.
when they were invented
when they were invented
Simple machines that start with the letter "o" include the "oculus," which refers to a circular opening that can function similarly to a pulley in some architectural contexts. However, traditional simple machines like levers, pulleys, and inclined planes do not have commonly recognized names starting with "o." Therefore, there are no widely acknowledged simple machines beginning with that letter in standard classifications.
There are quite a few machines that start with the letter B. A few of the machines are baling presses, boiler, and a beveling machine.
· pump
the gramophone
Akindle fire
· grader
Electric Heater ! :)
1754
yes. you must be highly mechanically inclined
Airplane, alarm clock, axle and automobile are machines. They begin with the letter a.