The Family tutor, 4. kötet

acid ancient angle animal appear astronomers Athens atmosphere attraction axis beautiful called carbonic acid celestial celestial equator celestial sphere centre centrifugal force circle colour copper degrees diameter direction distance diurnal diurnal motion Duval earth ecliptic equator equinox fall feet flowers force Galileo give gold gravity greater Greek numerals hand heat heavenly bodies heavens hermit horizon hour hundred inferior conjunction inferior planets iron latitude learned letters light longitude look lunar eclipse Luneville matter meridian metals miles mind moon moon's mother motion mountains move nature nearer nearly never night node objects observed opposite orbit Palemon parallax passed pistils plants pole portion pyramid refraction revolution revolve round seen shadow side solar solar eclipse spectator sphere stamens stars stone substances sun's supposed surface teacher things thousand tides tion velocity Venus young