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 ! :)
Not necessarily. Often people will avoid you if you are pathetic. It's common to see people start to run when a friend gets cancer or goes through a divorce or experiences some other disaster.
yes. you must be highly mechanically inclined
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