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Word A Word B Word C Word D Occurrence Frequency Band MI MI Band Prominent
day_n latitude_n mile_n minute_n 3,824 5 11.6366 5 false
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ID Title Author Corrected Date of Publication (TCP Date of Publication) STC Words Pages
A08582 The circles of proportion and the horizontal instrument The former shewing the maner how to work proportions both simple and compound: and the ready and easy resolving of quæstions both in arithmetic, geometrie, & astronomie: and is newly increased with an additament for navigation. All which rules may also be wrought with the penne by arithmetic, and the canon of triangles. The later teaching how to work most quæstions, which may be performed by the globe: and to delineat dialls upon any kind of plaine. Invented, and written in latine by W.O. Translated into English, and set out for the public benefit, by William Forster. Oughtred, William, 1575-1660.; Forster, William, mathematician.; Oughtred, William, 1575-1660. Addition unto the use of the circles of proportion. aut 1633 (1633) STC 18899B; ESTC S120820 74,822 159

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have_v the_o great_a latitude_n be_v and_o say_v as_o the_o tang_n of_o the_o compl_a of_o the_o lesser_a distance_n from_o the_o pole_n be_v to_o the_o radius_fw-la so_o be_v the_o sine_fw-la of_o the_o compl_a or_o excess_n of_o the_o difference_n of_o longitude_n to_o the_o tang_n of_o the_o first_o base_a take_v this_o first_o base_a out_o of_o the_o great_a distance_n from_o the_o pole_n and_o the_o remain_v shall_v be_v the_o second_o base_a then_o say_v as_o the_o sine_fw-la of_o the_o compl_a of_o the_o first_o base_a be_v to_o the_o sine_fw-la of_o the_o compl_a of_o the_o second_o base_a so_o be_v the_o sine_fw-la of_o the_o compl_a of_o the_o lesser_a distance_n from_o the_o pole_n to_o the_o sine_fw-la of_o the_o compl_a of_o the_o distance_n of_o the_o two_o star_n if_o any_o man_n will_v take_v pain_n to_o calculate_v by_o this_o last_o rule_n the_o distance_n of_o some_o note_a star_n of_o the_o first_o second_o and_o three_o magnitude_n round_o about_o the_o heaven_n which_o be_v not_o above_o 5_o or_o 6_o degree_n at_o the_o most_o one_o from_o the_o other_o and_o shall_v keep_v they_o write_v in_o his_o book_n they_o may_v serve_v as_o a_o rule_n or_o instrument_n whereby_o he_o may_v reasonable_o estimate_v with_o his_o eye_n the_o distance_n of_o any_o planet_n or_o comet_n or_o other_o apparition_n from_o a_o know_a fix_a star_n not_o very_o far_o remote_a by_o compare_v the_o distance_n which_o he_o will_v know_v with_o some_o of_o those_o know_a distance_n which_o he_o shall_v find_v either_o to_o be_v equal_a or_o else_o to_o have_v some_o proportion_n thereto_o 42._o the_o longitude_n and_o latitude_n of_o any_o two_o city_n be_v give_v to_o find_v their_o distance_n the_o manner_n of_o the_o operation_n be_v the_o very_a same_o with_o the_o former_a unto_o which_o therefore_o i_o refer_v the_o reader_n only_o will_v note_v that_o in_o the_o heaven_n the_o longitude_n and_o latitude_n be_v take_v in_o respect_n of_o the_o ecliptic_a 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of_o the_o angle_n of_o the_o ecliptic_a with_o the_o azumith_n of_o the_o moon_n again_o say_v as_o the_o radius_fw-la be_v to_o the_o sine_fw-la of_o that_o angle_n so_o be_v the_o parallax_n of_o the_o moon_n altitude_n to_o the_o parallax_n of_o her_o latitude_n last_o say_v as_o the_o radius_fw-la be_v to_o the_o sine_fw-la of_o the_o compl_a of_o that_o former_a angle_n so_o be_v the_o parallax_n of_o the_o moon_n altitude_n to_o the_o parallax_n of_o her_o longitude_n which_o be_v to_o be_v add_v to_o the_o true_a motion_n of_o the_o moon_n if_o she_o be_v on_o the_o east_n part_n of_o the_o 90_o degree_n of_o the_o ecliptic_a or_o to_o be_v subduct_v out_o of_o it_o if_o she_o be_v on_o the_o west_n
that_o imaginary_a parallel_n do_v the_o manifold_a use_n of_o this_o instrument_n especial_o rely_v because_o the_o true_a place_n of_o the_o sun_n all_o that_o day_n be_v in_o some_o part_n or_o point_n of_o that_o circle_n wherefore_o for_o the_o better_a conceive_v and_o bear_v in_o mind_n thereof_o every_o five_o parallel_n be_v herein_o make_v a_o little_o grosser_n than_o the_o rest_n i_o use_v and_o thus_o by_o the_o eye_n and_o view_v only_o to_o behold_v and_o comprehend_v the_o course_n of_o the_o sun_n both_o for_o his_o annual_a and_o diurnal_a motion_n may_v be_v the_o first_o use_n of_o this_o instrument_n two_o use_n to_o take_v the_o height_n of_o the_o sun_n above_o the_o horizon_n set_a up_o the_o pin_n which_o be_v therefore_o make_v fit_a for_o the_o hole_n at_o the_o centre_n perpendicular_a in_o the_o centre_n and_o put_v the_o indices_fw-la on_o both_o side_n down_o upon_o the_o meridian_n that_o they_o with_o their_o weight_n may_v not_o sway_v the_o instrument_n any_o way_n as_o it_o hang_v then_o with_o a_o thread_n put_v into_o the_o hole_n above_o in_o the_o handle_n hang_v it_o perpendicular_o bear_v the_o edge_n towards_o the_o sun_n that_o the_o pin_n may_v cast_v a_o shadow_n upon_o the_o degree_n in_o the_o limb_n for_o that_o degree_n which_o the_o shadow_n of_o the_o pin_n cut_v in_o the_o limb_n be_v the_o height_n of_o the_o sun_n above_o the_o horizon_n at_o that_o present_a iii_o use_n to_o find_v the_o declination_n of_o the_o sun_n every_o day_n look_v the_o day_n of_o the_o month_n propose_v in_o the_o ecliptic_a and_o mark_v how_o many_o degree_n the_o prick_n show_v that_o day_n be_v distant_a from_o the_o equinoctial_a either_o on_o the_o summer_n or_o winter_n side_n viz_o north_n or_o south_n example_n i._o what_o will_v the_o declination_n of_o the_o sun_n be_v upon_o the_o 11_o day_n of_o august_n look_v the_o 11_o day_n of_o august_n and_o you_o shall_v find_v it_o in_o the_o sixth_o circle_n above_o the_o aequinoctial_a now_o because_o each_o parallel_n stand_v as_o have_v be_v say_v before_o for_o 2_o degree_n the_o sun_n shall_v that_o day_n decline_v north-ward_n 12_o degree_n example_n ii_o what_o declination_n have_v the_o sun_n upon_o the_o 24_o day_n of_o march_n look_v the_o 24_o day_n of_o march_n and_o you_o shall_v find_v it_o between_o the_o second_o and_o three_o northern_a parallel_n as_o it_o be_v a_o half_a and_o one_o five_o part_n more_o of_o that_o distance_n from_o the_o second_o reckon_v therefore_o 4_o degree_n for_o the_o two_o circle_n and_o one_o degree_n for_o the_o half_a space_n so_o shall_v the_o sun_n declination_n be_v 5_o degree_n and_o about_o one_o five_o part_n of_o a_o degree_n northward_o that_o same_o day_n example_n iii_o what_o declination_n have_v the_o sun_n upon_o the_o 13_o day_n of_o november_n look_v the_o 13_o day_n of_o november_n and_o you_o shall_v find_v it_o below_o the_o equinoctial_a ten_o parallel_n and_o about_o one_o quarter_n 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♋_o ♌_o ♍_o then_o back_o again_o from_o east_n to_o south_n ♒_o ♏_o ♐_o and_o last_o from_o south_n to_o west_n ♑_o ♒_o ♓_o allow_v 30_o degree_n for_o each_o of_o those_o twelve_o sign_n vi_o use_n to_o find_v the_o diurnal_a arch_n or_o circle_n of_o the_o sun_n course_n every_o day_n the_o sun_n every_o day_n by_o his_o motion_n as_o have_v be_v say_v describe_v a_o circle_n parallel_v to_o the_o aequinoctial_a which_o be_v either_o one_o of_o the_o circle_n in_o the_o instrument_n or_o somewhere_o between_o two_o of_o they_o first_o then_o seek_v 〈◊〉_d of_o the_o month_n and_o if_o it_o fall_v upon_o one_o of_o those_o 〈◊〉_d that_o be_v the_o circle_n of_o the_o sun_n course_n that_o same_o day_n but_o if_o it_o fall_v between_o any_o two_o of_o those_o parallel_n imagine_v in_o your_o mind_n and_o estimate_n with_o your_o eye_n another_o parallel_n through_o that_o point_n between_o those_o two_o parallel_n keep_v still_o the_o same_o distance_n from_o each_o of_o they_o as_o 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