Assertion: newton's idea | /r/HasProperty | to start pendulum
Facets:
value: from several different heights
type: LOCATION
value: in order to cover a range of velocities
type: PURPOSE
Source sentences:
text: The idea was to start a pendulum from several different heights in order to cover a range of velocities and then to use simultaneous algebraic equations to fit a two or three term polynomial to two or three lost-arc data-points, changing the exponents until the polynomial achieved good agreement with the other lost-arc data points.