Scientific Amusements in Philosophy and Mathematics: Including Arithmetic, Acoustics, Electricity, Magnetism, Optics, Pneumatics : Together with Amusing Secrets in Various Branches of Science, the Whole Calculated to Form an Agreeable and Improving Exercise for the MindA. K. Newman, 1821 - 276 Seiten |
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Ergebnisse 1-5 von 13
Seite 49
... marked A , B , C , D , were put into a hat , and any one should bet to draw out A and D , either by taking two at once , or one after the other , it would be of no importance whether A should be drawn first or last ; the combinations ...
... marked A , B , C , D , were put into a hat , and any one should bet to draw out A and D , either by taking two at once , or one after the other , it would be of no importance whether A should be drawn first or last ; the combinations ...
Seite 58
... , to determine the probability of throwing with them an assigned number of points . We here suppose that the dice are of the usual kind , that is to say , having six faces marked with the num- bers 1 , 2 , 3 , 4 , 5 58 AMUSEMENTS.
... , to determine the probability of throwing with them an assigned number of points . We here suppose that the dice are of the usual kind , that is to say , having six faces marked with the num- bers 1 , 2 , 3 , 4 , 5 58 AMUSEMENTS.
Seite 59
... marked six , and as any one of these may come up as readily as another , it is evident that there are 5 chances against the person who undertakes to throw 6 at one throw , and only 1 in his favour . To play an equal game he ought ...
... marked six , and as any one of these may come up as readily as another , it is evident that there are 5 chances against the person who undertakes to throw 6 at one throw , and only 1 in his favour . To play an equal game he ought ...
Seite 62
... marked 6 , in two throws , with the same die , we must observe , as has been already said in regard to tossing up , that this is the same thing as to undertake to bring one face marked 6 , by throwing two dice at the same time . In this ...
... marked 6 , in two throws , with the same die , we must observe , as has been already said in regard to tossing up , that this is the same thing as to undertake to bring one face marked 6 , by throwing two dice at the same time . In this ...
Seite 65
... marked 3 of the die C , will consequently give two threes . Besides , the combina- tion 3 , 3 of the dice A , B , by combining with one of the six faces of the third C , will also give two threes ; and hence there are 16 different ways ...
... marked 3 of the die C , will consequently give two threes . Besides , the combina- tion 3 , 3 of the dice A , B , by combining with one of the six faces of the third C , will also give two threes ; and hence there are 16 different ways ...
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Häufige Begriffe und Wortgruppen
amusing arithme arithmetical mean arithmetical progression arranged bability body bottle bottom card thought chances colours combinations concord conductor consequently contain denominator denoted Desire the person diamonds dice divided division double easily eight electricity electrified employed equal equation example expressed figures finger former fourth fraction furlong games running geometrical progression give glass greater gum arabic half hand heaps hour inches kind last place latter liquor MAGIC SQUARES magnet manner marked face married couples matrass merator method multiplied nosegays number of terms number thought observe octave odd number pack phosphorus piece pounds probability of throwing PROBLEM proportion quantity quotient ratio rays remainder root rule of three seen shew shillings solution sound spades square root string subtract things third tion tone major tricity tube unity vibrations whole number wire yards
Beliebte Passagen
Seite 194 - To the top of the upright stick of the cross is to be fixed a very sharp pointed wire, rising a foot or more above the wood. To the end of the twine, next the hand, .is to be tied a silk ribbon, and where the silk and twine join a key may be fastened.
Seite 242 - In ten or twelve hoiirs afterwards, if the weather be warm, the earth will swell up and burst, and flames will issue out> which will enlarge the aperture, scattering around a yellow and blackish dust. It is not impossible, that what is here seen in miniature takes place on a grand scale in volcanoes ; as it is well known that they always, furnish abundance of sulphur, and also metallic substances.
Seite 195 - At this key the phial may be charged; and from electric fire thus obtained, spirits may be kindled, and all the other electric experiments be performed, which are usually done by the help of a rubbed glass globe or tube, and thereby the sameness of the electric matter with that of lightning completely demonstrated.
Seite 187 - Two small hemispheres of wood are then fixed with cement to the middle of the upper and under sides, centrally opposite, and in each of them a thick strong wire eight or ten inches long, which together make the axis of the wheel. It turns horizontally on a point at the lower end of its axis, which rests on a bit of brass cemented within a glass saltcellar. The upper end of its axis passes through a hole in a thin brass plate cemented to a long...
Seite 17 - That is, in any proportion, either extreme is equal to the product of the means divided by the other extreme; and either mean is equal to the product of the extremes divided by the other mean.
Seite 119 - The head of a fish is 7 inches long, the tail is as long as the head and |- of the body, and the body is as long as the head and tail ; what is the length of the fish ? 9.
Seite 194 - As soon as any of the thunder-clouds come over the kite the pointed wire will draw the electric fire from them, and the kite, with all the twine, will be...
Seite 78 - It may be readily seen, that the pieces, instead of being in the two hands of the same person, may be supposed to be in the hands of two persons, one "of whom has the even number, or piece of gold, and the other the odd number, or piece of silver. The same operations may then be performed in regard to these two persons, as are performed in regard to the two hands of the same person, calling the one privately the right, and the other the left.
Seite 35 - ... farthing for the first nail, two for the second, four for the third, and so on to the twenty-fourth.
Seite 76 - ... four, 555; and so on; for the remainder will be composed of figures of which the first on the left will be the first number thought of, the next the second, and so on.