An easy introduction to the arts and sciencespr. by William Porter, 1811 - 251 страници |
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Страница xi
... Colours The Air Of Water and Water Engines , commonly called Hydraulic Machines Additional Remarks on Geography Of the Winds Tides Electricity Galvanifm 216 219 221 233 244 251 253 257 270 THIS DAY IS PUBLISHED , A New Edition of AN ...
... Colours The Air Of Water and Water Engines , commonly called Hydraulic Machines Additional Remarks on Geography Of the Winds Tides Electricity Galvanifm 216 219 221 233 244 251 253 257 270 THIS DAY IS PUBLISHED , A New Edition of AN ...
Страница 16
... colours of the clouds ? A. The wonderful variety in the colours of the clouds is owing to their particular fitua- tion with regard to the fun , and the different reflections of his light ; the various figures of the clouds refult from ...
... colours of the clouds ? A. The wonderful variety in the colours of the clouds is owing to their particular fitua- tion with regard to the fun , and the different reflections of his light ; the various figures of the clouds refult from ...
Страница 22
... colours , which is only feen when the fpectator ftands with his back to the fun , and when it rains on the oppofite fide . Its colours are , beginning from the upper part , violet , indigo , blue , green , yellow , orange , red . 2 ...
... colours , which is only feen when the fpectator ftands with his back to the fun , and when it rains on the oppofite fide . Its colours are , beginning from the upper part , violet , indigo , blue , green , yellow , orange , red . 2 ...
Страница 23
... colours of the rainbow may be produced by making the rays of the fun país through a transparent prism of glass . 2. You have faid nothing of the rainbows that fometimes appear by night in the moon- hine ; -what think you of them ? A ...
... colours of the rainbow may be produced by making the rays of the fun país through a transparent prism of glass . 2. You have faid nothing of the rainbows that fometimes appear by night in the moon- hine ; -what think you of them ? A ...
Страница 40
... colour ; then to the bark , which in young plants confifts of a fingle layer , but in older ones of as many layers as they are years old under the bark is the wood , which forms the great bulk of trees and shrubs , and which confifts of ...
... colour ; then to the bark , which in young plants confifts of a fingle layer , but in older ones of as many layers as they are years old under the bark is the wood , which forms the great bulk of trees and shrubs , and which confifts of ...
Често срещани думи и фрази
Afia againſt alfo almoſt alſo animals appear atmoſphere Aurora Borealis becauſe bodies called cauſe Ceres Chrift clouds colour confiderable confifts defcend diftinguiſhed diſcovered diſtance earth electricity empire Engliſh faid fame fcience fecond feems feen feet ferve feven feveral fhew fhould fide filk filver fince fire firft firſt fituation fize fome fometimes foon fouth ftars ftate ftone fubftance fubject fuch fummer fuppofed furface fyphon glaſs goddeſs gold greateſt Greek hiftory himſelf iſlands itſelf Jupiter kind king kingdom laft lefs light meaſure mercury metals miles moft moon moſt motion muſt nature neceffary Neptune obferve occafioned paffing Pelias perfon Pluto Portugal prefent preffed preffure produced purpoſes raiſed reaſon repreſented rife rivers Ruffia Saturn ſea ſeveral ſhe ſmall ſome ſpace Spain ſtate Tartarus thefe themſelves theſe thofe thoſe thunder tides tricity uſed weft weight whofe wind
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Страница 53 - As may with sweetness, through mine ear, Dissolve me into ecstasies, And bring all Heaven before mine eyes. And may at last my weary age Find out the peaceful hermitage, The hairy gown and mossy cell, Where I may sit and rightly spell Of every star that heaven doth shew, And every herb that sips the dew, Till old experience do attain To something like prophetic strain.
Страница 156 - The great blue heron (Ardea herodias) is about four feet in length from the point of the bill to the end of the tail, and nearly six feet across the wings.
Страница 228 - ... the air. An artificial earthquake may be made thus. Take 10 or 15 pounds of fulphur, and as much of the filings of iron, and knead them with common water into the...
Страница 211 - ... by means of a mill, which turns a wheel of foft iron, fprinkled over with diamond duft, mixed with oil of olives. The fame duft, well ground, and diluted with water and vinegar, is ufed in the fawing of diamonds ; which is performed with an iron or brafs wire as fine as a hair.
Страница 260 - ... so that it would stream out plentifully from the key, at the approach of a person's finger. At this key he charged phials, and from electric fire thus obtained, he kindled spirits, and performed all other electrical experiments which are usually exhibited by an excited globe or tube.
Страница 235 - ... fupport the lead at the depth K E. If a little water be poured into the tube upon the lead, it will increafe the weight upon the column of water under the lead, and caufe the lead to fall from the tube to the bottom of the glafs veflel, where it will lie in the fituation b d.
Страница 237 - ... becaufe the weight of a column of water 33 feet high is equal to the weight of as thick a column of air, reaching from the furface of the earth to the top of the atmofphere; fo that there will then be an equilibrium, and...
Страница 116 - The soft murmurs of the waters are the sighs of the Naiads. A god impels the winds. A god pours out the rivers. Grapes are the gift of Bacchus. Ceres presides over the harvest.
Страница 160 - It is near six inches in length from the tip of the bill to the end of the tail, the former being about half an inch, and the latter two inches and a half.
Страница 259 - ... of thunder was perceived to be coming on. This kite had a pointed wire fixed upon it, by which it drew the lightning from the clouds. This lightning...