Assertion: newton | /r/HasAspect | brief exchanges
Facets:
value: in 1679–80
type: TEMPORAL
Source sentences:
text: Newton and Hooke had brief exchanges in 1679–80, when Hooke, appointed to manage the Royal Society's correspondence, opened up a correspondence intended to elicit contributions from Newton to Royal Society transactions, which had the effect of stimulating Newton to work out a proof that the elliptical form of planetary orbits would result from a centripetal force inversely proportional to the square of the radius vector.