Lectures on Select Subjects in Mechanics, Hydrostatics, Pneumatics, Optics, and AstronomyT. Tegg, 1837 - Всего страниц: 463 |
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Стр. 40
... degrees . " In the upper side of this machine are two glass tubes a and b , close stopp- ed at both ends ; and each tube is about three quarters full of water . In the tube a is a little quicksilver , which naturally falls down to the ...
... degrees . " In the upper side of this machine are two glass tubes a and b , close stopp- ed at both ends ; and each tube is about three quarters full of water . In the tube a is a little quicksilver , which naturally falls down to the ...
Стр. 48
... degree of force , and the side farthest from her with a less . So , if the weights are left at liberty , they will draw all the three balls towards the moon with different degrees of force , and cause them to make this appearance ; by ...
... degree of force , and the side farthest from her with a less . So , if the weights are left at liberty , they will draw all the three balls towards the moon with different degrees of force , and cause them to make this appearance ; by ...
Стр. 52
... degrees on its surface , which are found to be longer in the frigid zones than in the torrid : and the difference is found to be such as proves the earth's equatorial di- ameter to be thirty - six miles longer than its axis . 29 Seeing ...
... degrees on its surface , which are found to be longer in the frigid zones than in the torrid : and the difference is found to be such as proves the earth's equatorial di- ameter to be thirty - six miles longer than its axis . 29 Seeing ...
Стр. 73
... degrees , and then fixed at the given angle by means of the two screws a b . I KNO will represent the back of the wedge , L M its sharp edge which enters the wood , and the outsides of the pieces IK L M and L M N O the two sides of the ...
... degrees , and then fixed at the given angle by means of the two screws a b . I KNO will represent the back of the wedge , L M its sharp edge which enters the wood , and the outsides of the pieces IK L M and L M N O the two sides of the ...
Стр. 90
... degrees with a plane perpendicular to the axis on which the arms are fixed for carrying them . It being demonstrable , that when the sails are set to such an angle , and the axis turned end - ways toward the wind , the wind has the ...
... degrees with a plane perpendicular to the axis on which the arms are fixed for carrying them . It being demonstrable , that when the sails are set to such an angle , and the axis turned end - ways toward the wind , the wind has the ...
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altitude angle axis axle ball body bottom brass brazen meridian bucket bulk catgut center of gravity center of motion centrifugal force circle cock cogs cubic cylinder declination degrees dial diameter distance divided draw drawn earth ecliptic edge engine equal equator equinoctial fall feet fixed fluid glass gnomon half hole horizon hour-lines inches inclined plane latitude LECT length lever machine mean motion moon move north pole object ounces parallel perpendicular height pipe piston plane plate polar circles pole pounds pressure pulley pump quadrant quantity quicksilver raised ratchet-wheel rays receiver right line rise rope scale screw shew side sine specific gravity spring square steam steam engine sun's place suppose surface syphon tion troy troy ounces Troy weight trundle tube valve velocity vessel wedge weight wheel whilst whole winch wire