Selected quad for the lemma: friend_n
Text snippets containing the quad
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ID |
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Author |
Corrected Date of Publication (TCP Date of Publication) |
STC |
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A28939
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Animadversions upon Mr. Hobbes's Problemata de vacuo by the Honourable Robert Boyle ...
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Boyle, Robert, 1627-1691.
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1674
(1674)
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Wing B3926; ESTC R11777
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34,770
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106
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which_o indeed_o be_v impervious_a to_o common_a air_n strive_v to_o solve_v the_o phaenomena_n and_o prove_v our_o receiver_n to_o be_v always_o perfect_o full_a and_o therefore_o as_o full_a at_o any_o one_o time_n as_o at_o any_o other_o of_o common_a or_o atmospherical_a air_n as_o far_o as_o we_o can_v judge_v of_o his_o opinion_n by_o the_o tendency_n or_o import_n of_o his_o explication_n a._n yet_o if_o i_o be_v right_o inform_v of_o a_o experiment_n of_o you_o mr._n hobbes_n may_v be_v thereby_o reduce_v either_o to_o pass_v over_o to_o the_o vacuist_n or_o to_o acknowledge_v some_o aetherial_a or_o other_o matter_n more_o subtle_a than_o air_n and_o capable_a of_o pass_v through_o the_o pore_n of_o glass_n and_o therefore_o to_o show_v yourself_o impartial_a between_o the_o vacuist_n and_o their_o adversary_n in_o this_o controversy_n i_o hope_v you_o will_v not_o refuse_v to_o gratify_v the_o plenist_n by_o give_v your_o friend_n a_o more_o particular_a account_n of_o the_o experiment_n b._n i_o know_v which_o you_o mean_v and_o remember_v it_o very_o well_o for_o though_o i_o long_o since_o devise_v it_o yet_o have_v but_o the_o other_o day_n have_v occasion_n to_o peruse_v the_o relation_n i_o write_v down_o of_o one_o of_o the_o best_a trial_n i_o think_v i_o can_v repeat_v it_o almost_o in_o the_o very_a word_n which_o if_o i_o mistake_v not_o be_v these_o there_o be_v take_v a_o bubble_n of_o thin_a white_a glass_n about_o the_o bigness_n of_o a_o nutmeg_n with_o a_o very_a slender_a stem_n of_o about_o four_o or_o five_o inch_n long_o and_o of_o the_o bigness_n of_o a_o crows-quill_n the_o end_n of_o the_o quill_n be_v hold_v in_o the_o flame_n of_o a_o lamp_n blow_v with_o a_o pair_n of_o bellows_o be_v ready_o and_o well_o seal_v up_o and_o present_o the_o globous_a part_n of_o the_o glass_n be_v hold_v by_o the_o stem_n be_v keep_v turn_v in_o the_o flame_n till_o it_o be_v red_a hot_a and_o ready_a to_o melt_v then_o be_v a_o little_a remove_v from_o the_o flame_n as_o the_o include_v air_n begin_v to_o lose_v of_o its_o agitation_n and_o spring_n the_o external_a air_n manifest_o and_o considerable_o press_v in_o one_o of_o the_o side_n of_o the_o bubble_n but_o the_o glass_n be_v again_o before_o the_o cold_a can_v crack_v it_o hold_v as_o before_o in_o the_o flame_n the_o rarefy_v air_n distend_v and_o plump_v up_o the_o bubble_n which_o be_v the_o second_o time_n remove_v from_o the_o flame_n be_v the_o second_o time_n compress_v and_o be_v the_o three_o time_n bring_v back_o to_o the_o flame_n swell_v as_o before_o and_o remove_v be_v again_o compress_v either_o this_o time_n or_o the_o last_o by_o two_o distinct_a cavity_n till_o at_o length_n have_v satisfy_v ourselves_o that_o the_o include_v air_n be_v capable_a of_o be_v condense_v or_o dilate_v without_o the_o ingress_n or_o egress_n of_o air_n proper_o so_o call_v we_o hold_v the_o bubble_n so_o long_o in_o the_o flame_n strengthen_v by_o nimble_a blast_n that_o not_o only_o it_o have_v its_o side_n plump_v up_o but_o a_o hole_n violent_o break_v in_o it_o by_o the_o over-rarified_n air_n which_o together_o with_o the_o former_a watchfulness_n we_o employ_v from_o time_n to_o time_n to_o discern_v if_o it_o be_v any_o where_o crack_v or_o perforate_v satisfy_v we_o that_o it_o be_v till_o then_o entire_a a._n i_o confess_v i_o do_v not_o ready_o conceive_v before_o how_o you_o can_v as_o i_o be_v tell_v you_o have_v make_v a_o solid_a vessel_n wherein_o there_o be_v no_o danger_n of_o the_o air_n get_v in_o or_o out_o who_o cavity_n shall_v be_v still_o possess_v with_o the_o same_o air_n and_o yet_o the_o vessel_n be_v make_v by_o turn_n big_a and_o lesser_a and_o though_o i_o present_o think_v upon_o a_o well_o stop_v bladder_n yet_o i_o well_o foresee_v that_o a_o distrustful_a adversary_n may_v make_v some_o objection_n which_o be_v by_o your_o way_n of_o proceed_v obviate_v and_o the_o experiment_n agree_v with_o your_o doctrine_n in_o show_v how_o impervious_a we_o may_v well_o think_v your_o thick_a pneumatick_a receiver_n be_v to_o common_a air_n since_o a_o thin_a glass_n bubble_n when_o its_o pore_n be_v open_v or_o relax_v by_o flame_n will_v not_o give_v passage_n to_o the_o springy_a particle_n of_o the_o air_n though_o violent_o agitate_a for_o if_o those_o particle_n can_v have_v get_v out_o of_o the_o pore_n they_o never_o will_v have_v break_v the_o bubble_n as_o at_o length_n a_o more_o violent_a degree_n of_o heat_n make_v they_o do_v nor_o probable_o will_v the_o compression_n that_o afterward_o ensue_v of_o the_o bubble_n by_o the_o ambient_fw-la air_n be_v check_v near_o so_o soon_o if_o those_o springy_a corpuscle_n have_v not_o remain_v within_o to_o make_v the_o resistance_n methinks_v one_o may_v hence_o draw_v a_o new_a proof_n of_o what_o i_o remember_v you_o elsewhere_o teach_v that_o the_o spring_n of_o the_o air_n may_v be_v much_o strengthen_v by_o heat_n for_o in_o our_o case_n the_o spring_n of_o the_o air_n be_v thereby_o enable_v to_o expand_v the_o compress_a glass_n it_o be_v imprison_v in_o in_o spite_n of_o the_o resist_a pressure_n of_o the_o external_a air_n and_o yet_o that_o this_o pressure_n be_v considerable_a appear_v by_o this_o that_o the_o weight_n of_o so_o small_a a_o column_n of_o atmospherical_a air_n as_o can_v bear_v upon_o the_o bubble_n be_v able_a to_o press_v in_o the_o heat_a glass_n in_o spite_n of_o the_o resistance_n of_o its_o tenacity_n and_o arch_a figure_n b._n yet_o that_o which_o i_o main_o design_v in_o this_o experiment_n be_v if_o i_o be_v able_a to_o show_v and_o prove_v at_o once_o by_o a_o instance_n not_o liable_a to_o the_o ordinary_a exception_n the_o true_a nature_n of_o rarefaction_n and_o condensation_n at_o least_o of_o the_o air._n for_o to_o say_v nothing_o of_o the_o peripatetic_a rarefaction_n and_o condensation_n strict_o so_o call_v which_o i_o scruple_n not_o to_o declare_v i_o think_v to_o be_v physical_o inconceptible_a or_o impossible_a it_o be_v plain_a by_o our_o experiment_n that_o when_o the_o bubble_n after_o the_o glass_n have_v be_v first_o thrust_v in_o towards_o the_o centre_n be_v expanded_a again_o by_o heat_n the_o include_v air_n possess_v more_o room_n than_o before_o and_o yet_o it_o can_v perfect_o fill_v no_o more_o room_n than_o former_o each_o aerial_a particle_n take_v up_o both_o before_o and_o after_o the_o heat_n of_o the_o bubble_n a_o portion_n of_o space_n adequate_a to_o its_o own_o bulk_n so_o that_o in_o the_o cavity_n of_o the_o expanded_a bubble_n we_o must_v admit_v either_o vacuity_n intersperse_v between_o the_o corpuscle_n of_o the_o air_n or_o that_o some_o fine_a particle_n of_o the_o flame_n or_o other_o subtle_a matter_n come_v in_o to_o fill_v up_o those_o interval_n which_o matter_n must_v have_v enter_v the_o cavity_n of_o the_o glass_n at_o its_o pore_n and_o afterward_o when_o the_o red-hot_a bubble_n be_v remove_v from_o the_o flame_n it_o be_v evident_a that_o since_o the_o grosser_n particle_n of_o the_o air_n can_v not_o get_v through_o the_o glass_n which_o they_o be_v not_o able_a to_o do_v even_o when_o vehement_o agitate_a by_o a_o ambient_fw-la flame_n the_o compression_n of_o the_o bubble_n and_o the_o condensation_n of_o the_o air_n which_o be_v necessary_o consequent_a upon_o it_o can_v not_o suppose_v the_o plenitude_n of_o the_o world_n be_v perform_v without_o squeeze_v out_o some_o of_o the_o subtle_a matter_n contain_v in_o the_o cavity_n of_o the_o bubble_n whence_o it_o can_v not_o issue_v but_o at_o the_o pore_n of_o the_o glass_n but_o i_o will_v no_o long_o detain_v you_o from_o mr._n hobbes_n his_o explication_n of_o the_o machina_fw-la boyliana_n to_o the_o first_o of_o which_o you_o may_v now_o if_o you_o please_v advance_v a._n the_o passage_n i_o be_v go_v to_o read_v when_o you_o interrupt_v i_o be_v this_o b._n machina_fw-la illa_fw-la eosdem_fw-la effectus_fw-la producit_fw-la quos_fw-la produceret_fw-la in_o loco_fw-la non_fw-la magno_fw-la magnus_fw-la inclusus_fw-la ventus_fw-la a._n quomodo_fw-la ingreditur_fw-la istuo_fw-la ventus_fw-la machinam_fw-la nosti_fw-la cylindrum_fw-la esse_fw-la cavum_fw-la sneum_fw-la in_fw-la quem_fw-la protruditur_fw-la cylindrus_fw-la alius_fw-la solidus_fw-la ligneus_fw-la coriotectus_fw-la quem_fw-la suctorem_fw-la dicunt_fw-la it_o a_o exquisitè_fw-fr congruens_fw-la ut_fw-la ne_fw-la minimus_fw-la quidem_fw-la aer_fw-la inter_fw-la corium_fw-la &_o aes_fw-la intrare_fw-la ut_fw-la putant_fw-la possit_fw-la b._n scio_fw-la &_o quò_fw-la suctor_n facilius_fw-la intrudi_fw-la possit_fw-la foramen_fw-la quoddam_fw-la est_fw-la in_o superiori_fw-la parte_fw-la cylindri_fw-la per_fw-la quod_fw-la aer_fw-la qui_fw-la suctoris_fw-la ingressum_fw-la alioqui_fw-la impedire_fw-la possit_fw-la emittatur_fw-la quod_fw-la foramen_fw-la aperire_fw-la possunt_fw-la &_o clandere_fw-la quoties_fw-la usus_fw-la postulat_fw-la est_fw-la etiam_fw-la in_o