Question

What invention made Newton's Grandmother's life easier?​

Answer 1

Answer:

calculus

Isaac Newton (1642–1727) is best known for having invented the calculus in the mid to late 1660s (most of a decade before Leibniz did so independently, and ultimately more influentially) and for having formulated the theory of universal gravity — the latter in his Principia, the single most important work in the .

Explanation:

hope it's help

Answer 2

Answer:

sundial clock and water-clock