A Companion to the Scientific Dialogues; Or, The Tutor's Assistant and Pupil's Manual in Natural and Experimental Philosophy:: Containing a Complete Set of Questions, and Other Exercises, for the Examination of Pupils in the Six Volumes of Scientific Dialogues, and Forming a Seventh Volume of that Work. To which is Added, a Compendium of the Principal Facts Under Each Department of Science. Published at the Request of Many Persons Engaged in the Education of the Young, المجلد 7Baldwin, Cradock, and Joy, ... and R. Hunter, successor to Mr. Johnson, 1824 - 205 من الصفحات |
طبعات أخرى - عرض جميع المقتطفات
عبارات ومصطلحات مألوفة
angle appear Arthur Aikin attraction called centre colours concave mirror conductors Conversation VIII Conversation XIV convex lens day and night DEFINITIONS and FACTS depend diameter distance diurnal motion earth echo eclipse Edition elasticity elec electric fluid electrified electrometer equal Explain the experiment explain the structure fall fixed stars focus formed from Vol fulcrum Galvanism glass gravity of bodies half-bound heavenly bodies heavens hydrostatical hygrometer illustrated in Vol inclined plane kind leading DEFINITIONS length lever light and heat Look to Fig looking-glass magnet means of Fig meant mechanical power mercury millions of miles moon motion move objects orbit perpendicular planets pole star poles principle produced proportion Pupils should commit rainbow rays of light reflected refracting telescopes refraction Repeat the lines SCIENTIFIC DIALOGUES scioptric ball sound specific gravity spout substances superior planets synodical month telescopes thermometer tion tricity velocity Venus vessel weight wind
مقاطع مشهورة
الصفحة 104 - The horizontal distance to which a fluid will spout from a horizontal pipe in any part of the side of an upright vessel, below the surface of the fluid, is equal to twice the length of a perpendicular to the side of the vessel, drawn from the mouth of the pipe to a semicircle described upon the altitude of the fluid : and therefore the...
الصفحة 106 - He first established the truth, that a body plunged in a fluid loses as much of its weight as is equal to the weight of an equal volume of the fluid!
الصفحة 69 - ... its surface. It may therefore be concluded, that the heat of the earth above the zone of uniform temperature is entirely owing to the sun. The power of the solar rays depends much upon the manner in which they fall, as we readily perceive from the different climates on our globe. The earth is about three millions of miles nearer to the sun in winter than in summer, but the rays strike the northern hemisphere more obliquely in winter than in the other half of the year. The observations of the...
الصفحة 100 - Hydmtotici is a branch of natural philosophy that treats of the nature, gravity, pressure, and motion of fluids in general.
الصفحة 103 - The velocity with which water spouts out at a hole in the side or bottom of a vessel, is as the square root of the depth or distance of the hole below the surface of the water. For, in order to make double the quantity of a fluid run through one hole, as through another of the same size, it will require four times the pressure of the other, and therefore...
الصفحة 34 - In all kinds of levers, the power is to the weight, as the distance of the weight from the fulcrum is to that of the power from the fulcrum. 32. A hammer is a bent lever, and differs only in form from a lever of the first kind.
الصفحة 190 - If an animal be placed so as to form part of this circuit, the electricity in passing through it produces a sudden and violent effect, called the electric shock.
الصفحة 30 - Impenetrability is the property by which two bodies cannot occupy the same part of sp-ace at the same time. 4. Divisibility is that property by which matter is capable of being divided. 5. Mobility is that property of matter by which it is capable of being moved. 6. Inertia is the tendency which matter has to continue in the state into which it is put whether of rest or motion. 7. SPACE is either absolute or relative.