The Universal Preceptor: Being a General Grammar of Arts, Sciences, and Useful Knowledge ... |
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Страница 55
... which is not to be forgotten , that the momentum is always in proportion to the
combined or united size and velocity of the forces employed . Obs .-- d marble ,
twice the size of another , thrown with equal velocity , will strike with twice the
force ...
... which is not to be forgotten , that the momentum is always in proportion to the
combined or united size and velocity of the forces employed . Obs .-- d marble ,
twice the size of another , thrown with equal velocity , will strike with twice the
force ...
Страница 58
The principle of all the mechanical powers , however they may be combined , is
the same ; that is to say , to create all the difference possible between the velocity
of the power , and the velocity of that body which is to be acted upon , so as to ...
The principle of all the mechanical powers , however they may be combined , is
the same ; that is to say , to create all the difference possible between the velocity
of the power , and the velocity of that body which is to be acted upon , so as to ...
Страница 101
What animals effect by natural instinct , man effects by invention and by
combined power . Birds build their nests , bees frame their cells , and beavers
construct their habitations , with unvarying uniformity ; but the works of man
possess every ...
What animals effect by natural instinct , man effects by invention and by
combined power . Birds build their nests , bees frame their cells , and beavers
construct their habitations , with unvarying uniformity ; but the works of man
possess every ...
Страница 174
... contracts and shews its irratibility ; while this vital power is supported by the
nourishment which it receives through its coat . 513. From such simple animals ,
we ascend , through all the degrees , up to the complicated and combined
powers ...
... contracts and shews its irratibility ; while this vital power is supported by the
nourishment which it receives through its coat . 513. From such simple animals ,
we ascend , through all the degrees , up to the complicated and combined
powers ...
Страница 181
In artificial operations , changes of the same order occur : substances having the
characters of earth , are converted into metals ; clays and sands are united , so as
to become porcelain ; earths and alkalies are combined into glass ; acrid and ...
In artificial operations , changes of the same order occur : substances having the
characters of earth , are converted into metals ; clays and sands are united , so as
to become porcelain ; earths and alkalies are combined into glass ; acrid and ...
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Чести термини и фразе
according acid action ages America ancient angle animals appear become blood bodies Britain called carried cause chief circle colours combined common consists contains countries course Describe direction distance divided division draw earth effect electrical England English equal equator fall figures fire five fluid force four give glass half head heat heavens Hence houses inches increase inhabitants insects iron islands Italy kinds land leaves length less light lines live matter means metals miles millions moon motion move names nature night object oxygen pass persons phenomena piece plants pole principle produce proportion rays rise round sense separate side solid sound space species stars stone substance supposed surface things tion trade turned United various vegetables vibrations weight whole
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