The Universal Preceptor: Being a General Grammar of Arts, Sciences, and Useful Knowledge ... |
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Страница 114
Sun's rays , owing to their falling with increased perpendicularity and density ;
and secondly , by the excess of the length of the days over that of the nights ; so
that the heat imbibed in the day is not wholly parted with during the night . Obs . 1
.
Sun's rays , owing to their falling with increased perpendicularity and density ;
and secondly , by the excess of the length of the days over that of the nights ; so
that the heat imbibed in the day is not wholly parted with during the night . Obs . 1
.
Страница 212
of heat , requires , according to their several natures , eru cibles of different kinds
strong enough to reaist the fire ; made of earthenware , porcelain , or a mixture of
clay and powder of black - leail , or of black - lead altogether , 13. Sometimes ...
of heat , requires , according to their several natures , eru cibles of different kinds
strong enough to reaist the fire ; made of earthenware , porcelain , or a mixture of
clay and powder of black - leail , or of black - lead altogether , 13. Sometimes ...
Страница 217
... receives the motion of a hammer , or when two piece of wood are rubhod
together , au lutestine re - action of the atoms in the iron and woud takes place ,
accompanied by the perception of heat , and by a series of phenomena
depending on ...
... receives the motion of a hammer , or when two piece of wood are rubhod
together , au lutestine re - action of the atoms in the iron and woud takes place ,
accompanied by the perception of heat , and by a series of phenomena
depending on ...
Страница 231
Il ' we would extract the salt , we must eropa de the water by heat , with a still , or
retori , or alembic en if the wurour from either of these pass through a spload tube
or warm , to the receiver , we shall have distik water , and the residuum of salt ...
Il ' we would extract the salt , we must eropa de the water by heat , with a still , or
retori , or alembic en if the wurour from either of these pass through a spload tube
or warm , to the receiver , we shall have distik water , and the residuum of salt ...
Страница 241
Obs . Half a pound of steel filings , half a pound of brimstone , and a pint of water ,
will , when well mixed , acquire heat enough to make the mass take fire : and it
appears , that volcanic mountains abound in such mixtures , which are ignited ...
Obs . Half a pound of steel filings , half a pound of brimstone , and a pint of water ,
will , when well mixed , acquire heat enough to make the mass take fire : and it
appears , that volcanic mountains abound in such mixtures , which are ignited ...
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according acid action ancient angle animals appear Author become blood body Book bound Britain called carried cause chief colour combined common consists containing countries course Describe direction distance divided division draw earth Edit effect electrical England English equal equator fall fire five force four give glass Grammar head heat heavens Hence HISTORY hour houses inches inhabitants iron Italy kinds land language leaves length letters light live manner matter means metals miles millions Moon motion move names nature night object origin oxygen pass persons phenomena piece plants pole practical Price principle produce proportion Questions rays rise round rule Schools sense separated side solid sound species stars stone substance supposed surface things tion turned universal various vegetables vibrations weight whole young
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