Selected quad for the lemma: earth_n

Word A	Word B	Word C	Word D	Occurrence	Frequency Band	MI	MI Band	Prominent
earth_n	eclipse_n	moon_n	sun_n	9,242	5	9.0740	4	true

Text snippets containing the quad

ID	Title	Author	Corrected Date of Publication (TCP Date of Publication)	STC	Words	Pages
A44317	A description of helioscopes and some other instruments made by Robert Hooke, Fellow of the Royal Society.	Hooke, Robert, 1635-1703.	1676 (1676)	Wing H2614; ESTC R16365	25,369	36

their_o shake_n and_o uncertainty_n which_o i_o shall_v elsewhere_o describe_v there_o be_v one_o only_a difficulty_n in_o this_o motion_n and_o that_o be_v only_o in_o such_o object_n as_o pass_v over_o or_o very_o near_o the_o zenith_n or_o nadir_n of_o the_o place_n for_o in_o those_o case_n when_o the_o object_n come_v very_o near_o the_o zenith_n the_o obliquity_n of_o the_o motion_n of_o the_o one_o to_o the_o other_o be_v so_o very_o great_a that_o the_o first_o axis_n do_v not_o move_v the_o second_o without_o some_o difficulty_n but_o to_o remedy_v this_o the_o expedient_a be_v as_o easy_a and_o that_o be_v by_o have_v a_o little_a barrel_n about_o the_o perpendicular_a arm_n to_o carry_v it_o forward_o as_o far_o and_o as_o fast_o as_o the_o first_o incline_v axis_fw-la will_v permit_v it_o which_o weight_n may_v be_v remove_v as_o soon_o as_o the_o object_n be_v a_o little_a way_n past_o the_o zenith_n the_o next_o use_n that_o may_v be_v make_v of_o this_o be_v for_o carry_v the_o hand_n of_o a_o clock_n so_o as_o always_o to_o move_v over_o that_o point_n of_o the_o ecliptic_a in_o which_o the_o sun_n be_v in_o a_o stereographical_a projection_n of_o the_o sphere_n upon_o the_o plain_a of_o the_o equinoctial_a or_o in_o a_o orthographical_a projection_n of_o the_o say_a sphere_n upon_o the_o same_o plain_a so_o as_o to_o express_v thereby_o not_o only_o the_o differ_v right_a ascension_n but_o the_o anomaly_n also_o of_o the_o sun_n motion_n in_o the_o eccentric_a of_o the_o ecliptic_a and_o by_o this_o mean_v the_o face_n of_o the_o clock_n may_v be_v make_v by_o a_o planispherical_a projection_n to_o represent_v the_o motion_n of_o all_o the_o star_n appear_v in_o any_o horizon_n that_o be_v not_o too_o near_o the_o equinoctial_a their_o rise_n setting_n culminating_n azimuth_n and_o almicauter_n rise_n and_o setting_n of_o the_o sun_n the_o length_n of_o the_o day_n and_o night_n and_o of_o the_o twilight_n and_o dawning_n and_o many_o other_o problem_n of_o the_o sphere_n and_o which_o be_v a_o consequent_a of_o this_o it_o may_v be_v make_v to_o show_v the_o equation_n of_o time_n which_o be_v necessary_a to_o be_v make_v use_n of_o for_o set_v a_o pendulum_fw-la clock_n by_o the_o sun_n the_o manner_n of_o do_v which_o i_o must_v refer_v to_o another_o opportunity_n as_o i_o must_v also_o the_o use_n of_o this_o joint_n for_o draw_v ellipse_n drill_v and_o bore_v of_o bend_a holes_n for_o turn_v elliptical_a and_o swash-work_n till_o i_o publish_v my_o description_n of_o a_o turn_a engine_n capable_a to_o turn_v all_o manner_n of_o conical_a line_n and_o conoeidical_a all_o manner_n of_o foliage_n and_o flower-work_n all_o variety_n of_o basket_n or_o breaded-work_n all_o variety_n of_o spiral_n and_o helical-work_n serve_v for_o the_o imitation_n of_o the_o various_a form_n and_o carving_n of_o all_o sort_n of_o shell_n for_o cylindrical_a and_o conical_a screw_n all_o variety_n of_o embossment_n and_o statue_n all_o variety_n of_o edge_a and_o wheel-like_a work_n all_o variety_n of_o regular_o shape_a body_n whether_o the_o five_o regular_a body_n of_o plato_n or_o produce_v from_o those_o by_o various_a section_n or_o addition_n of_o which_o the_o variety_n be_v infinite_a all_o variety_n of_o bend_a cylinder_n or_o cones_n and_o those_o whether_o round_o in_o the_o manner_n of_o a_o oxes-horn_n or_o compress_v and_o angular_a like_o those_o of_o a_o ram_n or_o goat_n for_o all_o manner_n of_o swasht-work_n comprest-work_n etc._n etc._n every_o of_o which_o principal_a part_n have_v a_o vast_a variety_n and_o the_o compound_n and_o decompound_v principle_n have_v a_o variety_n almost_o infinite_a appendix_n concern_v the_o eclipse_n of_o the_o moon_n observe_v in_o london_n january_n the_o first_o 1674_o 5_o be_v at_o sr._n ionas_n mores_n in_o the_o tower_n of_o london_n and_o make_v use_n of_o a_o telescope_n of_o eight_o foot_n and_o my_o pocket-watch_n who_o balance_n be_v regulate_v with_o 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the_o beginning_n and_o end_n of_o the_o eclipse_n at_o 5._o 48._o we_o judge_v by_o the_o telescope_n that_o the_o moon_n be_v eclipse_v six_o digit_n or_o half_a at_o 6._o 19_o the_o total_a eclipse_n begin_v when_o the_o moon_n appear_v of_o a_o very_a red_a colour_n especial_o towards_o that_o part_n of_o the_o limb_n where_o the_o direct_a ray_n leave_v it_o which_o be_v at_o the_o mare_n crisium_fw-la which_o be_v opposite_a to_o grimaldi_n now_o the_o sky_n be_v somewhat_o clear_a it_o be_v before_o hazy_a with_o the_o telescope_n i_o begin_v to_o discover_v a_o great_a number_n of_o small_a star_n about_o the_o moon_n which_o appear_v yet_o much_o more_o conspicuous_a after_o i_o have_v take_v off_o the_o apperture_n from_o the_o object-glass_n and_o among_o the_o rest_n one_o seem_v very_o conspicuous_a and_o lay_v in_o the_o way_n of_o the_o moon_n which_o i_o diligent_o watch_v and_o observe_v that_o it_o be_v just_o cover_v by_o the_o moon_n at_o 6_o h._n 47′_n 30″_n the_o moon_n first_o cover_v it_o with_o that_o part_n of_o it_o which_o be_v almost_o perpendicular_o under_o the_o centre_n of_o the_o moon_n about_o three_o quarter_n of_o a_o hour_n after_o the_o total_a immersion_n the_o body_n of_o the_o moon_n be_v exceed_v dark_a and_o almost_o unperceivable_a be_v then_o near_o the_o centre_n of_o the_o umbra_fw-la and_o afterward_o the_o eastermost_a or_o foremost_a part_n of_o the_o limb_n of_o the_o moon_n begin_v to_o be_v enlighten_v whereas_o before_o the_o west_n ●most_o limb_n have_v be_v the_o bright_a this_o be_v also_o very_o notable_a that_o that_o part_n of_o the_o moon_n that_o be_v towards_o the_o north-pole_n a_o pretty_a while_n before_o the_o emersion_n of_o the_o moon_n out_o of_o the_o total_a eclipse_n and_o even_o till_o the_o very_a emersion_n and_o somewhat_o after_o too_o appear_v enlighten_v with_o a_o much_o brisk_a light_n than_o any_o other_o part_n of_o the_o body_n except_o that_o which_o be_v next_o the_o limb_n 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but_o i_o keep_v no_o account_n of_o they_o but_o only_o watch_v diligent_o when_o the_o star_n that_o enter_v behind_o the_o moon_n at_o 6._o 47._o 30._o will_v come_v out_o again_o which_o i_o find_v it_o to_o do_v at_o 7._o 30′_n see_v it_o at_o the_o very_a moment_n of_o time_n that_o it_o begin_v to_o appear_v again_o and_o it_o be_v also_o at_o the_o same_o instant_n discover_v by_o sr._n ionas_n more_n who_o be_v expect_v it_o with_o another_o tube_n at_o 7._o 58._o the_o body_n of_o the_o moon_n first_o emerge_v out_o of_o the_o umbra_fw-la at_o the_o spot_n grimaldi_n and_o soon_o after_o all_o those_o small_a star_n that_o be_v conspicuous_a before_o about_o the_o body_n of_o the_o moon_n vanish_v however_o i_o have_v before_o its_o first_o emersion_n out_o of_o the_o shadow_n take_v a_o little_a draught_n of_o the_o

the_o face_n of_o the_o dial_n be_v always_o move_v in_o a_o plain_a which_o pass_v through_o the_o arbour_n of_o the_o clock_n and_o make_v equal_a progression_n in_o equal_a space_n about_o the_o say_a arbour_n but_o unequal_a progression_n about_o the_o centre_n of_o the_o dial_n according_a to_o the_o differ_a inclination_n and_o those_o inclination_n be_v both_o in_o the_o sundial_n and_o clock-dial_n the_o same_o it_o will_v follow_v that_o ●he_v hand_n of_o the_o clock_n must_v always_o move_v in_o the_o shadow_n of_o the_o style_n if_o the_o hand_n be_v once_o rectify_v to_o the_o true_a plain_n and_o the_o axis_n or_o arbour_n make_v its_o revolution_n as_o it_o ought_v to_o do_v in_o twenty_o four_o hour_n if_o it_o be_v further_o desire_v for_o the_o ease_n of_o take_v azimuth_n and_o altitude_n that_o the_o arm_n of_o the_o azimuth_n quadrant_a that_o be_v once_o adjust_v to_o the_o celestial_a object_n shall_v by_o the_o aforesaid_a joint_n or_o instrument_n be_v keep_v always_o respect_v and_o follow_v the_o say_a object_n in_o its_o diurnal_a motion_n it_o may_v be_v very_o easy_o perform_v by_o the_o help_n of_o a_o small_a perpendicular_a ruler_n who_o low_a end_n be_v joint_v into_o either_o of_o the_o arm_n 11_o of_o the_o circular_a plate_n x_o in_o the_o 22_o and_o 23d_o figure_n of_o my_o animadversion_n and_o the_o upper_a end_n joint_v into_o the_o movable_a arm_n at_o the_o same_o distance_n from_o the_o centre_n of_o the_o quadrant_n that_o the_o low_a end_n be_v from_o the_o centre_n of_o the_o plate_n x_o and_o that_o the_o centre_n of_o the_o quadrant_n be_v set_v exact_o perpendicular_a over_o the_o centre_n of_o x_o but_o then_o the_o division_n by_o the_o help_n of_o the_o screw_n can_v be_v make_v use_n of_o because_o the_o clockwork_n itself_o be_v to_o turn_v and_o move_v the_o arm_n but_o it_o may_v be_v do_v by_o any_o quadrant_n where_o the_o minute_n division_n be_v perform_v by_o the_o help_n of_o diagonal_o for_o the_o 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by_o the_o sight_n and_o then_o immediate_o to_o fix_v it_o in_o the_o say_a posture_n by_o the_o aforesaid_a screw_n the_o clockwork_n of_o the_o say_a instrument_n have_v be_v before_o that_o put_v into_o motion_n the_o reason_n of_o all_o which_o will_v easy_o appear_v to_o any_o one_o that_o thorough_o consider_v that_o all_o celestial_a object_n seem_v by_o the_o diurnal_a motion_n of_o the_o earth_n to_o move_v equal_o from_o east_n to_o west_n about_o the_o axis_n of_o it_o and_o will_v all_o do_v exact_o so_o be_v they_o not_o somewhat_o vary_v by_o their_o own_o proper_a periodical_a revolution_n which_o though_o it_o do_v indeed_o make_v a_o real_a difference_n between_o their_o velocity_n about_o the_o axis_n of_o the_o earth_n yet_o that_o difference_n be_v but_o small_a and_o the_o same_o circular_a pendulum_n will_v serve_v both_o for_o the_o sun_n moon_n planet_n and_o star_n if_o at_o least_o the_o pendulum_n p_o in_o the_o fifteen_o figure_n be_v a_o little_a 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the_o axis_fw-la of_o equal_a motion_n represent_v the_o axis_fw-la of_o the_o diurnal_a motion_n of_o the_o earth_n be_v place_v with_o such_o inclination_n to_o it_o as_o the_o axis_fw-la of_o the_o earth_n have_v to_o the_o oblique_a axis_n or_o style_n of_o the_o dial_n and_o the_o motion_n will_v be_v most_o exact_o perform_v mechanical_o and_o according_a to_o the_o truth_n of_o geometry_n and_o calculation_n now_o in_o all_o these_o motion_n care_n must_v be_v take_v to_o provide_v that_o the_o inclination_n of_o the_o declination_n of_o the_o sun_n from_o the_o equinoctial_a be_v express_v by_o the_o end_v 11_o in_o the_o 22_o and_o 23_o figure_n of_o the_o second_o plate_n of_o my_o animadversion_n of_o the_o cross_n take_v hold_v of_o by_o the_o semicircular_a arm_n c_o d_o upon_o the_o end_n of_o the_o first_o axis_n that_o be_v that_o the_o say_v arm_n may_v by_o their_o revolution_n make_v the_o line_n of_o the_o cross_n describe_v such_o a_o cone_fw-mi about_o the_o first_o axis_n as_o the_o motion_n of_o the_o sun_n do_v about_o the_o axis_fw-la of_o the_o earth_n make_v the_o centre_n of_o the_o earth_n the_o apex_n of_o that_o cone_n which_o will_v be_v do_v if_o the_o say_v semicircular_a arm_n be_v move_v and_o set_v to_o the_o declination_n of_o the_o sun_n for_o that_o day_n or_o that_o a_o additional_a motion_n be_v add_v to_o the_o first_o axis_n that_o the_o clock_n itself_o may_v perform_v it_o this_o may_v be_v do_v twenty_o way_n easy_o enough_o which_o i_o suppose_v will_v be_v sufficient_o obvious_a to_o any_o know_a mechanic_n and_o that_o without_o the_o help_n of_o tooth-wheel_n or_o pinion_n which_o in_o work_n of_o this_o nature_n be_v in_o no_o wise_a to_o be_v make_v use_n of_o by_o reason_n of_o