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Word A Word B Word C Word D Occurrence Frequency Band MI MI Band Prominent
hand_n left_a right_a string_n 8,078 5 13.9494 5 false
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ID Title Author Corrected Date of Publication (TCP Date of Publication) STC Words Pages
A48262 Mathematicall recreations. Or, A collection of many problemes, extracted out of the ancient and modern philosophers as secrets and experiments in arithmetick, geometry, cosmographie, horologiographie, astronomie, navigation, musick, opticks, architecture, statick, mechanicks, chemistry, water-works, fire-works, &c. Not vulgarly manifest till now. Written first in Greeke and Latin, lately compi'ld in French, by Henry Van Etten, and now in English, with the examinations and augmentations of divers modern mathematicians whereunto is added the description and use of the generall horologicall ring: and the double horizontall diall. Invented and written by William Oughtred.; Récréation mathématique. English. Oughtred, William, 1575-1660. aut 1653 (1653) Wing L1790; ESTC R217635 140,825 339

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to_o shoot_v at_o he_o this_o can_v be_v for_o no_o object_n whatsoever_o present_v to_o a_o concave_a glass_n if_o it_o be_v not_o near_o to_o the_o grass_n than_o the_o eye_n be_v it_o come_v not_o out_o to_o the_o sight_n of_o the_o party_n therefore_o he_o need_v not_o fear_v that_o which_o be_v say_v to_o be_v behind_o his_o back_n and_o come_v out_o of_o the_o glass_n for_o if_o it_o do_v come_v out_o it_o must_v then_o necessary_o be_v before_o his_o face_n so_o in_o a_o concave_a glass_n who_o centre_n be_v far_o remote_a of_o a_o sword_n stick_v or_o such_o like_a be_v present_v to_o the_o glass_n it_o shall_v total_o be_v see_v to_o come_v forth_o of_o the_o glass_n and_o all_o the_o hand_n that_o hold_v it_o and_o here_o general_o note_v that_o if_o a_o image_n be_v see_v to_o issue_v out_o of_o the_o glass_n to_o come_v towards_o the_o face_n of_o any_o one_o that_o stand_v by_o the_o object_n shall_v be_v likewise_o see_v to_o thrust_v towards_o that_o face_n in_o the_o glass_n and_o may_v easy_o be_v know_v to_o all_o the_o stander_n by_o so_o many_o person_n stand_v before_o a_o glass_n if_o one_o of_o the_o company_n take_v a_o sword_n and_o will_v make_v it_o issue_n forth_o towards_o any_o o●her_n that_o stand_v there_o let_v he_o choose_v his_o image_n in_o the_o glisse_n and_o carry_v the_o sword_n right_a towards_o it_o and_o the_o effect_n will_v follow_v in_o like_a manner_n one_o hand_n be_v present_v to_o the_o gloss_n as_o it_o be_v thrust_v towards_o the_o centre_n s●_n the_o representation_n of_o it_o come_v towards_o it_o and_o so_o the_o hand_n will_v seem_v to_o be_v unite_v or_o to_o touch_v one_o another_o from_o which_o may_v be_v conclude_v if_o such_o a_o glass_n be_v place_v at_o the_o ceiling_n or_o planch_a of_o a_o hall_n so_o that_o the_o face_n be_v horizontall_a and_o look_v downward_o one_o may_v see_v under_o it_o as_o it_o be_v a_o man_n hang_v by_o the_o foot_n and_o if_o there_o be_v many_o place_v so_o one_o can_v 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in_o obscurity_n or_o shadow_v or_o else_o it_o will_v not_o be_v see_v to_o cast_v light_n in_o the_o night_n to_o a_o place_n remote_a with_o a_o candle_n place_v in_o the_o point_n of_o concourse_n or_o inflammation_n be_v one_o of_o the_o most_o notable_a property_n which_o can_v be_v show_v in_o a_o concave_a glass_n for_o if_o in_o the_o point_n of_o inflammation_n of_o a_o parabolicall_a section_n a_o candle_n be_v place_v the_o light_n will_v be_v reflect_v by_o parallel_a line_n as_o a_o column_n or_o cylinder_n but_o in_o the_o spherical_a section_n it_o be_v defective_a in_o part_n the_o beam_n be_v not_o unite_v in_o one_o point_n
a_o line_n and_o place_v a_o ruler_n upon_o e._n and_o f._n cut_v the_o other_o line_n in_o k_o so_o k_o be_v the_o centre_n of_o the_o circumference_n of_o a_o circle_n which_o will_v pass_v by_o the_o say_v three_o point_n a.b.c._n or_o it_o may_v be_v invert_v have_v a_o circle_n draw_v to_o find_v the_o centre_n of_o that_o circle_n make_v 3._o point_n in_o the_o circumference_n and_o then_o use_v the_o same_o way_n so_o shall_v you_o have_v the_o centre_n a_o thing_n most_o facile_a to_o every_o practitioner_n in_o the_o principle_n of_o geometry_n problem_n xxxii_o how_o to_o change_v a_o circle_n into_o a_o square_a form_n m●ke_v a_o circle_n upon_o pasteboard_n or_o other_o material_a as_o the_o circle_n a.c.d.e._n of_o which_o a._n be_v the_o centre_n then_o cut_v it_o into_o 4_o quarter_n and_o dispose_v they_o so_o that_o a._n at_o the_o centre_n of_o the_o circle_n may_v always_o be_v at_o the_o angle_n of_o the_o square_n and_o so_o the_o four_o quarter_n of_o the_o circle_n be_v place_v so_o it_o will_v make_v a_o perfect_a square_n who_o side_n a.a._n be_v equal_a to_o the_o diameter_n b.d._n now_o here_o be_v to_o be_v note_v that_o the_o square_n be_v great_a than_o the_o circle_n by_o the_o vacuity_n in_o the_o middle_n viz._n m._n problem_n xxxiii_o with_o one_o and_o the_o same_o compass_n and_o at_o one_o and_o the_o same_o extent_n or_o open_v how_o to_o describe_v many_o circle_n concentricall_a that_o be_v great_a or_o lesser_a one_o than_o another_o it_o be_v not_o without_o cause_n that_o many_o admire_v how_o this_o proposition_n be_v to_o be_v resolve_v yea_o in_o the_o judgement_n of_o some_o it_o be_v think_v impossible_a who_o consider_v not_o the_o industry_n of_o a_o ingenious_a geometrician_n who_o make_v it_o possible_a and_o that_o most_o facile_a sundry_a way_n for_o in_o the_o first_o place_n if_o you_o make_v a_o circle_n upon_o a_o fine_a plain_n and_o upon_o the_o centre_n of_o that_o circle_n a_o small_a peg_n of_o 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take_v together_o and_o the_o line_n ad.ae._n be_v equal_a to_o the_o diameter_n bc._n because_o of_o the_o same_o distance_n or_o extent_n of_o open_v the_o compass_n it_o follow_v that_o the_o diameter_n e.d._n and_o all_o his_o circle_n together_o be_v much_o less_o than_o the_o diameter_n and_o the_o circle_n bc._n which_o be_v to_o be_v perform_v problem_n xxxiv_o any_o number_n under_o 10._o be_v think_v upon_o to_o find_v what_o number_n they_o be_v let_v the_o first_o number_n be_v double_v and_o unto_o it_o add_v 5._o and_o multiply_v that_o sum_n by_o 5._o and_o unto_o it_o add_v 10._o and_o unto_o this_o product_n add_v the_o next_o number_n think_v upon_o multiply_v this_o same_o again_o by_o 10._o and_o add_v unto_o it_o the_o next_o number_n and_o so_o proceed_v now_o if_o he_o declare_v the_o last_o sum_n mark_v if_o he_o think_v but_o upon_o one_o figure_n for_o then_o subtract_v only_o 35._o from_o it_o and_o the_o first_o figure_n in_o the_o place_n of_o ten_o be_v the_o number_n think_v upon_o if_o he_o think_v upon_o two_o figure_n then_o subtract_v also_o the_o say_a ●5_n from_o his_o last_o sum_n and_o the_o two_o figure_n which_o remain_v be_v the_o number_n think_v upon_o if_o he_o think_v upo●_n three_o figure_n then_o subtract_v 350._o and_o then_o the_o first_o three_o figure_n be_v the_o number_n think_v upon_o etc._n etc._n so_o if_o one_o think_v upon_o these_o number_n 5.7.9.6_o double_a the_o first_o make_v 1●_n to_o which_o add_v 5._o make_v 15._o this_o multiply_v by_o 5._o make_v 75._o to_o which_o add_v 1●_n make_v 85._o to_o this_o add_v the_o next_o number_n viz._n 7._o make_v 92._o this_o multiply_v by_o 10._o make_v 920._o to_o which_o add_v the_o next_o number_n viz._n 9_o make_v 929._o which_o multiply_v by_o 10._o make_v 9290._o to_o which_o add_v 6._o make_v 9296._o from_o which_o subtract_v 3500._o rest_v 5796._o the_o four_o number_n think_v upon_o now_o because_o the_o two_o last_o figure_n be_v like_o the_o two_o number_n think_v upon_o to_o conceal_v this_o bid_v he_o take_v the_o half_a of_o it_o or_o put_v first_o 12._o or_o any_o other_o number_n to_o it_o and_o then_o it_o will_v not_o be_v so_o open_a problem_n xxxv_o of_o the_o play_n with_o the_o ring_n among_o a_o company_n of_o 9_o or_o 10._o person_n one_o of_o they_o have_v a_o ring_n or_o such_o like_a to_o find_v out_o in_o which_o hand_n upon_o which_o finger_n &_o joint_n it_o be_v this_o will_v cause_v great_a astonishment_n to_o ignorant_a spirit_n which_o will_v make_v they_o believe_v that_o he_o that_o do_v it_o work_v by_o magic_n or_o witchcraft_n but_o in_o effect_v it_o be_v nothing_o else_o but_o a_o nimble_a act_n of_o arithmetic_n found_v upon_o the_o precedent_a problem_n for_o first_o it_o be_v suppose_v that_o the_o person_n stand_v or_o sit_v in_o order_n that_o one_o be_v first_o the_o next_o second_o etc._n etc._n likewise_o there_o must_v be_v imagine_v that_o of_o these_o two_o hand_n the_o one_o be_v first_o and_o the_o other_o second_o and_o also_o of_o the_o five_o finger_n the_o one_o be_v first_o the_o next_o be_v second_v and_o last_o of_o the_o joint_n the_o one_o be_v as_o 1._o the_o other_o be_v as_o 2._o the_o other_o as_o 3._o etc._n etc._n from_o whence_o it_o appear_v that_o in_o perform_v this_o play_n there_o be_v nothing_o else_o to_o be_v do_v than_o to_o think_v 4._o number_n for_o example_n if_o the_o four_o person_n have_v the_o ring_n in_o his_o left_a hand_n and_o upon_o the_o five_o finger_n and_o three_o joint_n and_o i_o will_v divine_v and_o find_v it_o out_o thus_o i_o will_v proceed_v as_o in_o the_o 34_o problem_n in_o cause_v he_o to_o double_v the_o first_o number_n that_o be_v the_o number_n of_o person_n which_o be_v 4._o and_o it_o make_v 8._o to_o which_o add_v 5._o make_v 13._o this_o multiply_v by_o 5._o make_v 65._o put_v 10._o to_o it_o make_v 75._o unto_o this_o put_v ●_o for_o the_o number_n belong_v to_o the_o left_a hand_n and_o so_o it_o make_v 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