Philosophical Recreations, Or, Winter Amusements: A Collection of Entertaining & Surprising Experiments in Mechanics, Arithmetic, Optics, Hydrostatics, Hydraulics, Pneumatics, Electricity, Chemistry, Magnetism, & Pyrotechny, Or Art of Making Fire Works, Together with the Wonders of the Air Pump, Magic Lanthorn, Camera Obscura, &c. ... and a Variety of Tricks with Cards. The Whole Simplified and Clearly Elucidated So as to Suit Every CapacityT. Hughes, 1820 - 200 sider |
Innhold
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Philosophical Recreations, Or, Winter Amusements: A Collection of ... John Badcock, Jr. Ingen forhåndsvisning tilgjengelig - 2015 |
Vanlige uttrykk og setninger
Alcinous amusement appear aqua regia aqua-fortis boil bottle bottom cards buff colour Camera Obscura candle chafing-dish colour confederate cork court card cover Deucalion dexterously diameter dipped dissolved distance drawn drop Dryope electric electrified experiment fastened figure fill finger fire flowers four frame glass gold gum arabic half hand Hesiod holes hour inches iron king of spades lamp light liquor lively colours long card Magic Magic Lantern magnet manner meal powder mercury middle mirror mixture nitrous acid north pole number thought ounces pack of cards painted paper parcel pass pasteboard performed person draw person's cards phial phosphorus piece pipe pounds powder quantity remain sal ammoniac saltpetre second person seven of diamonds shew shuffle the cards side silk silver suppose tell third three cards touch trick tube turn vessel visible whole wire
Populære avsnitt
Side 174 - 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...
Side 147 - The immediate washing of the powder is material, because it is liable to the re-action of the nitric acid ; and while any of the acid adheres to it, it is very subject to the action of light. From 100 grains of mercury, about 120 or 130 of the powder are obtained.
Side 61 - ... put the chintz in, and use the rice instead of soap ; wash it in this, till the dirt appears to be out ; then boil the same quantity as above, but strain the rice from the water, and mix it in warm water.
Side 39 - The floating Stone. To a piece of cork tie a small stone that will just sink it ; and putting it in a vessel of water, place it under the receiver. Then exhausting the receiver, the bubbles of air will expand from its pores, and adhering to its surface, will render it, together with the stone, lighter than water, and consequently they will rise to the surface and float. Withered Fruit restored. TAKE a shrivelled apple, and placing it under the receiver, exhaust
Side 197 - ... it in a lawn sieve, that has a receiver and top to it ; and that which does not pass through the sieve, return again to the table and grind it more, till you have brought it all fine enough to go through the sieve. Brimstone and charcoal are ground in the same manner as gunpowder, only the muller must be made of ebony, for these ingredients being harder than powder, would stick in the grain of the elm, and be very difficult to grind ; and as the brimstone is apt to stick and clog to the table,...
Side 164 - ... ef, that it may be raised up and let down by the cord coming through the outside of the box. On this glass, the spectre, (or any other figure you please,) must be painted in a contracted or squat form, as the figure will reflect a greater length than it is drawn. When you have lighted the lamp in the lantern, and placed the mirror in a proper direction, put the box on a table, and setting the chafing-dish in it, throw some incense in powder on the coals. You then open the trap door and let down...
Side 32 - Any number being mentioned, how to add a figure to that number which shall render thi whole divisible by 9. ADD the figures together in your mind, which compose the number named ; and the figure which must be added to this sum, in order to make it divisible by 9, is the one required. Suppose, for example, the number named was 8654 ; you find that the sum of its figures is 23 ; and that 4 being added to this sum, will make it 27 ; which is a number exactly divisible by 9.
Side 121 - You then offer the long card to be drawn ; and when it is replaced in the pack, you shuffle the cards several times, giving the egg to the person who drew the card, and while he is breaking it, you privately withdraw the long card, that it may appear upon examining the cards, to have gone from the pack into the egg. This may be rendered more surprising by having several eggs, in each of which is placed a card of the same sort, and then giving the person the liberty to choose which egg he thinks fit.
Side 175 - ... the table. When it is well charged, it begins to move; the bullet nearest to a pillar moves towards the thimble on that pillar, and passing by, electrifies it, and then pushes itself from it; the succeeding bullet, which communicates with the other surface of the glass, more strongly attracts that thimble, on account of its being...