Archimedes, his ideal Problem for moving the Earth, 159.
Areas described by the Planets, equal in times, 153.
Astronomy, the great advantages arising from it both in our religious and civil concerns, 1 Discovers the laws by which the Planets move, and are retained in their Orbits, 2
Of the Axis or Orbit of a Planet only relative, 201.
Inhabitants of the Earth (or any other Planet) stand on opposite sides with their feet toward one another, yet each thinks himself on the upper side, 122.
Her phases agreeably represented by a globular Stone viewed in Sun-shine when she is above the Horizon, and the observer placed as if he saw her on the top of the Stone, 258.
Her periodical and synodical revolution represented by the motions of the hour and minute hands of a Watch, 264.
Her Path delineated, and shewn to be always concave to the Sun, 265-268.
Her motion alternately retarded and accelerated, 267.
Her gravity toward the Sun greater than toward the Earth at her Conjunction, and why she does not then abandon the Earth on that account, 268.
Rises nearer the time of Sun-set when about the full in harvest for a whole week than when she is about the full at any other time of the year, and why, 273-284:
this rising goes through a course of increasing and
decreasing benefit to the farmers every 19 years, 292.
Continues above the Horizon of the Poles for fourteen of our natural Days together, 293.
Rays of Light, if not disturbed, move in straight lines, and hinder not one another’s motions, 168.
Are refracted in passing through different mediums, 171.
Reflection of the Atmosphere causes the Twilight, 177.
Refraction of the Atmosphere bends the rays of light from straight lines, and keeps the Sun and Moon longer in sight than they would otherwise be, 178.
For converting time into motion, and the reverse, 220.
For shewing how much of the celestial Equator passes over the Meridian in any part of a mean Solar Day; and how much the Stars accelerate upon the mean Solar time for a month, 221.