Scientific Dialogues, for Young People: in which the First Principles of Natural and Experimental Philosophy are Explained, Tom 41815 |
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Strona
... Scale 211 XXII . The same subject ; Wedgewood's Scale of Heat ; Fahrenheit and Reaumur's Thermometers compared .......... 221 XXIII . Of the Pyrometer and Hygrometer ....... 230 XXIV . Of the Rain - gauge , and Rules for judging of the ...
... Scale 211 XXII . The same subject ; Wedgewood's Scale of Heat ; Fahrenheit and Reaumur's Thermometers compared .......... 221 XXIII . Of the Pyrometer and Hygrometer ....... 230 XXIV . Of the Rain - gauge , and Rules for judging of the ...
Strona 85
... scale - beam a piece of lead and a piece of cork in this state I will introduce them under the receiver , and exhaust the air . Charles . The cork now seems to be heavier than the lead . Father . In air each body lost a weight ...
... scale - beam a piece of lead and a piece of cork in this state I will introduce them under the receiver , and exhaust the air . Charles . The cork now seems to be heavier than the lead . Father . In air each body lost a weight ...
Strona 194
... scale of variation . Emma . Is the fluctuation of the mercury different in other parts of the world ? Father . Within and near the tro- pics , there is little or no variation in the height of the mercury in the ba- rometer in all ...
... scale of variation . Emma . Is the fluctuation of the mercury different in other parts of the world ? Father . Within and near the tro- pics , there is little or no variation in the height of the mercury in the ba- rometer in all ...
Strona 195
... scale of inches is placed on the right side of the baro- meter tube , the beginning of the scale being the surface of the mer- cury in the bason : the vernier plate and index are moveable , so that the index may , at any time , be set ...
... scale of inches is placed on the right side of the baro- meter tube , the beginning of the scale being the surface of the mer- cury in the bason : the vernier plate and index are moveable , so that the index may , at any time , be set ...
Strona 197
... scale as to bring the figure 1 on the vernier even with the second tenth on the scale . Emma . Then the whole height is 29 inches 2 tenths , and one of the divisions on the vernier ; which is equal to a tenth and a hundredth ; that is S ...
... scale as to bring the figure 1 on the vernier even with the second tenth on the scale . Emma . Then the whole height is 29 inches 2 tenths , and one of the divisions on the vernier ; which is equal to a tenth and a hundredth ; that is S ...
Inne wydania - Wyświetl wszystko
Scientific Dialogues, for Young People: In Which the First Principles ..., Tom 5 Jeremiah Joyce Podgląd niedostępny - 2016 |
Kluczowe wyrazy i wyrażenia
14 grains admit the air air is taken air rush air-pump atmosphere barometer barrel bell bladder blows body boiler boiling bottle bottom brass called catgut cause Charles cold common compressed condensed air conductor of sound consequently CONVERSATION cork degree distance duated echo effects elastic Emma Eolian equal exhaust the air experiment external air Fahrenheit fall Father feet fish fixed flask Florence flask fluid force glass hear heard heat heavier hollow earth hygrometer inches instrument lighter means mercury mercury rises miles motion move ounces piece pipe piston Plate 11 pounds pressure produced pump quantity of air quart quicksilver rain receiver red heat rise Rosneath round scale screw sound travels space specific gravity square steam steam-engine Stentor stop-cock striking suction suré surface syringe thermometer Thomas Savery thunder tion tube turn the handle vacuum valve vanes velocity vessel weather weight wind
Popularne fragmenty
Strona 189 - In that case the water is kept in the tube by the pressure of the atmosphere on the surface of the water into which it is plunged.
Strona 222 - ... them. Small pieces of alum and clay, mixed together, are made just large enough to enter at the wide end : they are then heated in the fire with the body whose heat is to be ascertained. The fire, according to its heat, contracts the earthy body, so that, being applied to the wide end of the gauge, jt will slide on towards the narrow end, less or more, according to the degree of heat to which it has been exposed*.
Strona 180 - Soon shall thy arm, unconquered steam, afar Drag the slow barge or drive the rapid car ; Or, on wide-waving wings expanded, bear The flying chariot through the fields of air ; — Fair crews triumphant, leaning from above, Shall wave their fluttering kerchiefs as they move, Or warrior bands alarm the gaping crowd, And armies shrink beneath the shadowy cloud.
Strona 248 - In foul weather, when the mercury rises much and high, and so continues for two or three days before the foul weather is quite over, then expect a continuance of fair weather to follow.
Strona 247 - In fair weather, when the mercury falls much and low, and thus continues for two or three days before the rain comes, then expect a great deal of wet, and probably high winds.
Strona 247 - ... 1 . The rising of the mercury presages, in general, fair weather, and its falling foul •weather, as rain, snow, high winds, and storms. When the surface of the mercury is convex, or stands higher in the middle than at the sides, it is a sign...
Strona 160 - Savery to your aid ; Bade round the youth explosive Steam aspire, In gathering clouds, and wing'd the wave with fire; Bade with cold streams the quick expansion stop, And sunk the immense of vapour to a drop. Press'd by the ponderous air the piston falls Resistless, sliding through its iron walls; Quick moves the balanced beam, of giant birth, Wields his large limbs, and nodding shakes the earth.
Strona 248 - ... 6. In fair weather when the mercury falls much and low, and thus continues for two or three days before the rain comes, then a deal of wet may be expected, and probably high winds.
Strona 249 - In winter, spring, and autumn, the sudden falling of the mercury, and that for a large space, denotes high winds and storms ; but in summer it presages heavy showers, and often thunder.