The mechanical slide rule (jan 1, 1600 – 14h 49min, jul 1, 2019 y)
Description:
John Napier of Scotland who invented logarithms made the first slide rule to make it easier to use with logarithms.Added to timeline:
Date:
jan 1, 1600
14h 49min, jul 1, 2019 y
~ 419 years