Selected quad for the lemma: end_n

Word A Word B Word C Word D Occurrence Frequency Band MI MI Band Prominent
end_n east_n point_n west_n 1,970 5 9.4719 5 true
View all documents for the selected quad

Text snippets containing the quad

ID Title Author Corrected Date of Publication (TCP Date of Publication) STC Words Pages
A44313 Animadversions on the first part of the Machina coelestis of the honourable, learned, and deservedly famous astronomer Johannes Hevelius, consul of Dantzick together with an explication of some instruments / made by Robert Hooke ... Hooke, Robert, 1635-1703. 1674 (1674) Wing H2611; ESTC R38964 66,602 94

There is 1 snippet containing the selected quad. | View original text

your_o eye-glass_n and_o observe_v how_o far_o the_o cross_a thread_n be_v now_o remove_v from_o it_o either_o northwards_o or_o southwards_o upward_o or_o downward_o then_o as_o near_o as_o you_o can_v by_o your_o judgement_n half_a that_o difference_n and_o by_o the_o screw_n move_v the_o frame_v that_o the_o thread_n may_v stand_v in_o the_o middle_n between_o the_o two_o point_n then_o take_v notice_n again_o of_o the_o point_n show_v by_o the_o thread_n and_o turn_v the_o tube_n again_o do_v this_o so_o many_o time_n till_o you_o find_v upon_o convert_v the_o tube_n that_o you_o see_v the_o same_o point_n to_o be_v mark_v by_o the_o cross_n of_o the_o thread-sight_n with_o which_o end_n soever_o you_o look_v on_o they_o and_o then_o the_o tube_n will_v be_v exact_a and_o fit_a for_o use_v the_o reason_n of_o this_o adjust_n will_v be_v sufficient_o plain_a to_o any_o one_o that_o shall_v consider_v the_o 14_o figure_n where_o let_v v_o represent_v the_o middle_n of_o the_o tube_n tub_n or_o the_o place_n of_o the_o eye_n and_o let_v w_n represent_v the_o object_n see_v westward_n and_o e_o the_o object_n eastward_n at_o the_o first_o view_n then_o keep_v the_o middle_n of_o the_o tube_n exact_o upon_o the_o same_o point_n u._fw-mi turn_v the_o end_n of_o the_o tube_n t_o towards_o the_o east_n and_o the_o end_n b_o towards_o the_o west_n and_o find_v out_o first_o the_o eastern_a object_n e_o and_o find_v the_o other_o cross_n to_o direct_v now_o to_o the_o point_n p_o and_o not_o to_o w_n divide_v the_o distance_n between_o the_o point_n w_o and_o the_o point_n p_o as_o exact_o as_o you_o can_v in_o half_a which_o if_o you_o chance_v to_o hit_v exact_o at_o first_o it_o will_v be_v the_o middle_a point_n m_o but_o if_o you_o do_v not_o but_o you_o rectify_v it_o only_o to_o r_o then_o by_o the_o next_o turn_v of_o your_o tube_n you_o will_v find_v we_o where_o you_o must_v again_o rectify_v to_o half_a the_o difference_n between_o s_o and_o r_o now_o the_o difference_n be_v grow_v yet_o less_o you_o will_v a_o 3d._n or_o four_o time_n set_v it_o so_o exact_o as_o to_o see_v the_o point_n m_o and_o e_o which_o lie_v in_o the_o straight_a line_n with_o the_o centre_n of_o the_o double_a tube_n the_o four_o thing_n wherein_o this_o quadrant_n exceed_v the_o common_a be_v for_o its_o accurateness_n for_o take_v altitude_n and_o this_o be_v do_v by_o the_o help_n of_o a_o water-level_a for_o adjust_v the_o exact_a perpendicularity_n thereof_o this_o level_n may_v be_v make_v and_o fix_v so_o exact_o that_o any_o observator_fw-la may_v be_v sure_a of_o the_o level_n of_o his_o instrument_n to_o a_o second_o or_o two_o the_o level_n itself_o be_v nothing_o but_o a_o short_a tube_n of_o glass_n about_o 6_o or_o 8_o inch_n long_o hermetical_o seal_v at_o each_o end_n and_o fill_v with_o a_o liquor_n that_o will_v not_o freeze_v nor_o grow_v foul_a with_o stand_v the_o glass_n as_o near_o as_o can_v be_v get_v shall_v be_v cylindrical_a and_o straight_o it_o be_v the_o better_a the_o near_o it_o be_v to_o a_o straight_a provide_v it_o have_v a_o sensible_a bend_n or_o swell_v in_o the_o middle_n the_o gibbous_a part_n of_o which_o shall_v be_v set_v upward_o and_o a_o proper_a cell_n and_o box_n make_v for_o it_o of_o brass_n this_o glass_n be_v to_o be_v fill_v almost_o full_a of_o distil_a water_n to_o which_o about_o a_o 3d._a part_n of_o good_a aquafortis_n or_o spirit_n of_o niter_n have_v be_v put_v to_o keep_v the_o same_o from_o freeze_a and_o also_o from_o grow_v foul_a then_o careful_o seal_v up_o hermetical_o and_o place_v in_o its_o box_n of_o brass_n and_o with_o hard_a cement_n fix_v into_o the_o same_o which_o by_o screw_n be_v fix_v to_o that_o side_n of_o the_o quadrant_n that_o be_v to_o lie_v horizontal_n the_o brass_n box_n be_v thus_o fix_v to_o the_o right_a side_n of_o the_o long_o fix_a tube_n ap_fw-mi ap_fw-mi ap_fw-mi and_o underneath_o the_o quadrant_n so_o as_o not_o to_o hinder_v the_o free_a movement_n of_o the_o arm_n c_o c_o c_o as_o at_o x_o x_o the_o next_o thing_n to_o be_v do_v be_v by_o it_o to_o set_v the_o quadrant_n true_o horizontal_n which_o be_v thus_o perform_v set_v the_o side_n a_o p_o a_o p_o a_o p_o horizontal_n and_o the_o limb_n of_o the_o quadrant_n upward_o and_o look_v in_o at_o the_o centre_n take_v notice_n of_o two_o object_n in_o the_o horizon_n opposite_a to_o each_o other_o observe_v the_o limit_n of_o the_o bubble_n of_o air_n on_o the_o top_n of_o the_o liquor_n on_o each_o side_n of_o the_o middle_n of_o the_o level_n and_o make_v a_o mark_n then_o turn_v the_o end_n of_o the_o quadrant_n set_v it_o till_o the_o end_n of_o the_o bubble_n stand_v as_o in_o the_o former_a observation_n then_o look_v again_o at_o those_o object_n in_o the_o horizon_n and_o find_v what_o the_o difference_n be_v between_o these_o opposite_a object_n and_o those_o in_o the_o former_a observation_n then_z halue_fw-mi the_o difference_n between_o they_o as_o near_o as_o you_o can_v and_o by_o your_o eye_n set_v the_o sight_n to_o the_o middle_n between_o they_o by_o incline_v the_o quadrant_n then_o by_o the_o screw_n that_o rectify_v the_o level_n set_v the_o glass-level_a so_o that_o the_o end_n of_o the_o bubble_n may_v be_v equal_o distant_a from_o the_o middle_n and_o convert_v the_o quadrant_n again_o and_o see_v if_o the_o end_n of_o the_o bubble_n stand_v at_o the_o same_o mark_n the_o two_o opposite_a telescope-sight_n do_v see_v the_o same_o object_n for_o if_o so_o you_o be_v assure_v of_o the_o perfect_a horizontality_n of_o the_o sight_n upon_o the_o fix_a arm_n of_o a_o p_o a_o p_o but_o if_o you_o do_v not_o find_v it_o to_o direct_v to_o the_o same_o object_n continue_v examine_v and_o convert_v till_o you_o find_v it_o perfect_a now_o this_o way_n of_o perpendicular_a be_v subject_n to_o the_o inconvenience_n of_o heat_n and_o cold_a which_o do_v rarify_v and_o condense_a the_o liquor_n and_o consequent_o make_v the_o bubble_n of_o air_n less_o or_o more_o care_n must_v be_v take_v to_o mark_v all_o the_o variety_n of_o those_o kind_n of_o the_o bubble_n that_o be_v cause_v by_o the_o degree_n of_o heat_n and_o cold_a which_o you_o may_v thus_o easy_o effect_v reduce_v the_o liquor_n in_o the_o tube_n of_o the_o 24_o figure_n by_o the_o help_n of_o ice_n and_o salt_n to_o as_o great_a a_o degree_n of_o cold_a as_o you_o can_v then_o by_o the_o method_n new_o direct_v set_v the_o quadrant_n horizontal_n and_o mark_v the_o two_o end_n of_o the_o bubble_n with_o 44_o then_o by_o gentle_o apply_v heat_n to_o the_o ambient_fw-la air_n warm_a likewise_o the_o water_n and_o observe_v the_o expansion_n thereof_o at_o both_o its_o end_n and_o mark_v they_o on_o the_o glass_n with_o the_o point_n of_o a_o diamant_n as_o 33._o 22._o 11._o 00._o which_o be_v do_v it_o will_v be_v exceed_o easy_a at_o any_o time_n to_o adjust_a the_o quadrant_n to_o any_o accurateness_n desire_v by_o be_v careful_a to_o see_v that_o the_o two_o end_n of_o the_o bubble_n be_v proportionable_o extend_v as_o to_o 00_o 11_o 22._o 33._o 44_o etc._n etc._n or_o to_o any_o intermediate_v space_n the_o contrivance_n of_o fasten_v and_o adjust_v this_o level_n to_o the_o quadrant_n or_o other_o instrument_n will_v be_v very_o easy_o understand_v by_o the_o delineation_n thereof_o in_o the_o 24_o figure_n let_v a_o a_o a_o a_o represent_v the_o frame_n or_o plate_n of_o brass_n which_o by_o four_o screw_n d_o d_o d_o d_o be_v fix_v to_o the_o tube_n as_o before_o this_o plate_n have_v 4_o upright_a cheek_n b_o b_o c_o c_o between_o which_o the_o brass_n box_n e_o e_o e_o e_o into_o which_o the_o cylindrical_a glass-level_a f_o f_z be_v fix_v with_o hard_a cement_n be_v hold_v steady_a without_o any_o manner_n of_o shake_v this_o brass_n box_n at_o the_o end_n of_o it_o near_o the_o right_a hand_n have_v a_o pevot_n which_o be_v fit_v exact_o into_o 2_o small_a hole_n in_o the_o cheek_n c_o c_o and_o at_o the_o other_o end_n next_o the_o left_a hand_n have_v a_o small_a screw-pin_n g_o which_o hold_v it_o down_o fast_o to_o the_o bottom_n plate_n and_o keep_v it_o from_o rise_v out_o from_o between_o the_o cheek_n b_o b_o which_o a_o very_a strong_a spring_n lie_v underneath_o it_o between_o the_o plate_n a_o a_o and_o the_o box_n e_o e_o will_v otherwise_o force_v it_o to_o do_v by_o this_o screw_n the_o level_n be_v to_o be_v adjust_v to_o the_o sight_n of_o the_o quadrant_n by_o the_o way_n i_o just_a now_o describe_v and_o be_v once_o thus_o adjust_v and_o fix_v it_o be_v not_o easy_o put_v out_o of_o order_n without_o move_v or_o