Endless Amusement: A Collection of Nearly 400 Entertaining Experiments in Various Branches of Science ...Carey, 1821 - 216 pagine |
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Endless Amusement: A Collection of Nearly 400 Entertaining Experiments in ... Visualizzazione completa - 1839 |
Endless Amusement: A Collection of Nearly 400 Entertaining Experiments in ... Visualizzazione completa - 1847 |
Parole e frasi comuni
acid amusement appear aqua fortis aqua regia ball bladder boiling bottle bottom brimstone burn burning glass candle centre chafing-dish circle colour cork cover DISSOLVE distance drachm draw drawn eight electric electrified experiment exposed feet figure filled finger fire fixed four frame fulminating silver glass gold grooves half hand heat hole illuminated inches inches diameter inches long Invisible invisible ink iron light liquor long card Magic magical square manner meal powder Meal-powder metal middle mirror mortar mouth needle nitrous acid object observe ounces pack paper pass pasteboard person phial phosphorus piece pipe powder present prime conductor produce quantity rays rockets round Saltpetre shew shuffle side silver sparks spirit of wine square stars stick strong sulphur surface tell thin tube turn vessel vitriol wheel wire write
Brani popolari
Pagina 64 - Kite. MAKE a small cross of two light strips of cedar, the arms so long as to reach to the four corners of a large thin silk handkerchief when extended ; tie the corners of the handkerchief to the extremities of the cross; and you have the body of the kite, which being properly
Pagina 65 - and wind of a thunder gust, without tearing. 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, is to be tied a silk ribbon, and where the silk and twine join, a key may be fastened. This kite
Pagina 65 - appears to be coming on ; and the person who holds the string must stand within a door or window, or under some cover, so that the silk ribbon may not be wet; and care must be taken that the twine do not touch the frame of the door or window. As soon as any of the thunder clouds come over the kite,
Pagina 65 - attracted by an approaching finger. When the rain has wetted the kite and twine, so that it can conduct the electric fire freely, you will find it stream out plentifully from the key, on the approach of
Pagina 65 - be kindled, and all the other electric experiments performed, which are usually done by the help of a rubbed glass or tube, and thereby the identity of the electric matter with that of lightning completely demonstrated. The Magic
Pagina 65 - pointed wire will draw the electric fire from them, and the kite, with all the twine, will be electrified, while the loose filaments of the twine will stand out every way, and
Pagina 132 - heated by the sun's rays. It is the same before a fire, the heat of which sooner penetrates black stockings than white ones, and so is apt sooner to burn a man's shins. Also beer much sooner warms in a black mug set before the fire, than a white one,
Pagina 140 - good conductor) to pass into the wall (a bad conductor) through those staples. It would rather, if any were in the wall, pass out of it into the rod, to get more readily by that conductor into the earth. If the building be very large and extensive, two
Pagina 141 - course through the air of the room and the bedding, when it can go through a continued better conductor, the wall. But where it can be had, a hammock, or swinging bed, suspended by silk cords equally distant from the walls on every side, and from the
Pagina 139 - The distance at which a body charged with this fluid will discharge itself suddenly, striking through the air into another body that is not charged, or not so highly charged is different according to the quantity of the fluid, the dimensions and form of the bodies themselves, and the state of the air between