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
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
The Plains TribeS (there's more than one plains tribe) 'began' looooooong before christopher Columbus was even born.
yes. you must be highly mechanically inclined
Airplane, alarm clock, axle and automobile are machines. They begin with the letter a.