Can anyone tell me the date when these stuff were invented?

Question

Pascaline

Abacus

Napiers Bones

Please answer soon as possible, my little sis needs this for her homework and unfortunately i don't have enough time to do some research or let her do it herself because i'm using the computer for my other research homeworks.

Answer 1

Pascaline - Blaise Pascal invented the second mechanical calculator, called alternatively the Pascalina or the Arithmetique, in 1645, the first being that of Wilhelm Schickard in 1623.

abacus - The origins of the abacus are disputed, as many different cultures have been known to have used similar tools. It is known to have existed in Babylonia and in China, with invention to have taken place between 2400 BCE and 300 BCE. The first abacus was almost certainly based on a flat stone covered with sand or dust. Lines were drawn in the sand and pebbles used to aid calculations. From this, a variety of abaci were developed; the most popular were based on the bi-quinary system, using a combination of two bases (base-2 and base-5) to represent decimal numbers.

napiers bones - Napier's bones are an abacus invented by John Napier for calculation of products and quotients of numbers. Also called Rabdology (from Greek ραβδoς [rabdos], rod and λóγoς [logos], word). Napier published his invention of the rods in a work printed in Edinburgh, Scotland, at the end of 1617 entitled Rabdologiæ. Using the multiplication tables embedded in the rods, multiplication can be reduced to addition operations and division to subtractions. More advanced use of the rods can even extract square roots. Note that Napier's bones are not the same as logarithms, with which Napier's name is also associated.

Answer 2

Blaise Pascal invented the second mechanical calculator, called alternatively the Pascalina or the Arithmetique, in 1645, the first being that of Wilhelm Schickard in 1623
The origins of the abacus are disputed, as many different cultures have been known to have used similar tools. It is known to have existed in Babylonia and in China, with invention to have taken place between 2400 BCE and 300 BCE
Napier's bones are an abacus invented by John Napier for calculation of products and quotients of numbers. Also called Rabdology (from Greek ραβδoς [rabdos], rod and λóγoς [logos], word). Napier published his invention of the rods in a work printed in Edinburgh, Scotland, at the end of 1617 entitled Rabdologiæ

Answer 3

Pascaline - 1645

Abacus - 240 to 300 BC

Napier Bones - 1617

Answer 4

Pascaline - 1642

Abacus- between 1,000 BC and 500 BC

Napiers Bones-1617 AD

Answer 5

Pass cal lean is a bad road outside of California

ABBA cuss is what heavy metal heads say about the swedish pop group


Nappy bones are the brown chunks a baby often sits on


All were invented in AD 1972

Answer 6

Pascaline -- 1645
Abacus --between 2400 BCE and 300 BCE
Napiers Bones -- 1617

Answer 7

pascaline-1542

abacus- circa. 500 B.C.

Napier's bones- 1617

Answer 8

search wikipedia, dont make us do your dirty work :)

Answer 9

no