The writings of Ptolemy and Archimedes make it clear that not all ancient thinkers agreed with Aristotle. Ptolemy was a Greco-Egyptian writer of Alexandria.
In the year 265 b.c
no
Archimedes made the lever sometime between 280bc to210bc.
1786
Archimedes obstacles were simply that the things in life he had were not good enough and he had the will to improve and make new ideas to make people's lives easier.
make circles and discover pi
Ptolemy would have made his observations in Egypt probably Alexandria around AD120 up to his death in AD168.
by there mathematical skills they made
to make it easy to roll
one was the pulley. Another is called Archimedes screw. Its purpose was to bring water from a lower level to a higher one.
Ptolemy would have made his observations in Egypt probably Alexandria around AD120 up to his death in AD168.
Archimedes invent the compound pulley around 250 BC. The invention was to utilize leverage to make moving a heavy object easier.