Did Leonardo da vinci invent a time machine?

Answer 1

The earliest form of calculator is called an abacus. These were used for calculating in many ancient societies. The earliest record of a device used to calculate numbers was a Sumerian abacus (2700-2300 BC); records of the Persian Empire using a form of abacus (600 BC); records of a Greek abacus (300 BC), Chinese abacus (200 BC), and Roman use of a form of abacus (100 BC) all predate the life of Leonardo da vinci.

These early abaci were usually a frame of wood or bamboo, with pebbles, beads, or beans moved on a wire, rod, or string, or moved along a groove. Over the centuries, many devices have been used to calculate numbers. The closest forerunner to the modern calculator would be the encrypting devices used in World War 2.

Leonardo da Vinci (1452-1519) was a very prolific inventor and drew plans for many types of devices. There is only one drawing attributed to da Vinci of a more complex 'calculating' device for which no date is given. See the link below for a little 'history' of this drawing.

Answer 2

Leonardo da Vinci is popularly, but erroneously, credited with inventing modern scissors. A scissor-like tool made of a single piece of metal was in use in ancient Egypt around 1500 BC. There is evidence of modern cross-blade scissors with a pivot being used in Rome some 1600 years later. Quite simply, Leonardo da Vinci did not invent scissors. He was born long after examples of Roman scissors were found.

So, whilst da Vinci was a brilliant man with a mind generations ahead of his time, he cannot be correctly credited with inventing scissors. No doubt, however, he perfected the pivot action.

Answer 3

Not the Inventor of ScissorsNo. Apparently, scissors were around in the Roman times long before Leonardo lived.

Answer 4

No, Leonardo da vinci did not invent the calculator. The calculator was created more recently in the 1900's.

Answer 5

What childrens' stories have you been reading? Leonardo did nothing of the kind.

Answer 6

yes he invented many things but he never got to try them out

Answer 7

He did not.