The Popular Educator, Volúmenes3-4;Volumen13Cassell, 1867 |
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Página 2
... heat , it would rapidly cool . Obedient to the great law , as it cooled it would contract and become more dense , until its outward edge had reached so low a temperature that it could no longer remain in its vapour condition , when it ...
... heat , it would rapidly cool . Obedient to the great law , as it cooled it would contract and become more dense , until its outward edge had reached so low a temperature that it could no longer remain in its vapour condition , when it ...
Página 7
... heat , and therefore a cubic inch of hot water weighs less than an equal bulk of cold . The temperature of 60 is chosen merely as a matter of convenience , that being about the average , and therefore involving less trouble . When ...
... heat , and therefore a cubic inch of hot water weighs less than an equal bulk of cold . The temperature of 60 is chosen merely as a matter of convenience , that being about the average , and therefore involving less trouble . When ...
Página 31
... heat being applied , bromine distils over . expressed- 2BrK + 2H , SO , + MnO , = 2Br + K , SO 、 + MnSO ̧ + 2H2O . It will be noticed that this process is identical with that of liberating chlorine from common salt . Properties ...
... heat being applied , bromine distils over . expressed- 2BrK + 2H , SO , + MnO , = 2Br + K , SO 、 + MnSO ̧ + 2H2O . It will be noticed that this process is identical with that of liberating chlorine from common salt . Properties ...
Página 32
... heating iodine in an atmo- sphere of hydrogen ; or a solution of this acid may be easily prepared by suspending ... heat , this reaction ensues- = H , SO . CaF , CaSO , + 2HF . The bent part of the tube in Fig . 45 is immersed in a ...
... heating iodine in an atmo- sphere of hydrogen ; or a solution of this acid may be easily prepared by suspending ... heat , this reaction ensues- = H , SO . CaF , CaSO , + 2HF . The bent part of the tube in Fig . 45 is immersed in a ...
Página 44
... heat , and when a stick of brimstone is held in the hand in contact with the ear it crackles and frequently falls to pieces from the unequal expan- sion . It is quite insoluble in water , as may be easily seen by examining a piece of ...
... heat , and when a stick of brimstone is held in the hand in contact with the ear it crackles and frequently falls to pieces from the unequal expan- sion . It is quite insoluble in water , as may be easily seen by examining a piece of ...
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Términos y frases comunes
acid angle animal Asia avait Avez-vous become body called Calyx Cape carbonate cent centre church colour compound consonant Cotton crustaceans dair deponent verbs deposited dicotyledonous diphthongs Divide divisor draw English equal example EXERCISES IN LESSONS fait feet Fodora fraction France French frère give Greek habe heat hence heures honour hydrochloric acid inches insects iron Italian KEY TO EXERCISES language Latin least common multiple letters liquid London and Westminster means metal miles Monsieur Mountains multiplied nitric acid oont ouss ovary ovules oxide pass père petals position pounds pressure produced pronounced pupil qu'il quantity quotient Russia salt side sœur sound specific gravity stamens sulphur sulphuric acid surface syllable term tion tube vanishing point verb vessel voulez-vous vowels weight Westminster Bank wheel words writing εστι εστιν ον
Pasajes populares
Página 83 - Staat eine Maschine sein muß, die nur der Gedanke Eines regiert; welche größere Glückseligkeit könnte es gewähren , in dieser Maschine als ein gedankenloses Glied mitzudienen? Oder vielleicht gar wider...
Página 46 - Minna, daß die Thierchen nichts finden können; nun sind sie arm. Darum füttere ich sie, so wie die reichen Menschen die armen unterstützen und ernähren. Da sagte der Vater: Aber du kannst sie doch nicht alle versorgen!
Página 245 - Das war ein Fest« für unfern Ernst, der nichts lieber, als Obst aß. „Die schöne Zeit," sagte sein Vater, „wird bald vorüben sein; der Winter ist schon vor der Thür, um den Herbst zu vertreiben.
Página 16 - Gebüsche sich belaubten, da öffnete der Landmann sein Fenster, und der kleine Gast entfloh in das nahe Wäldchen, und bauete sein Nest und sang sein fröhliches Liebchen.
Página 70 - Mägdlein weinete noch lauter, als es das neue Vögelchen sah. Da wunderte sich die Mutter sehr, und sprach: Mein liebes Kind, warum weinest du noch, und bist so sehr betrübt? Deine Thränen werden das gestorbene Vögelchen nicht in das Leben rufen, und hier hast du ja ein anderes, das nicht schlechter ist, denn jenes!