قراءة كتاب The Mysteryes of Nature and Art Conteined in foure severall Tretises, The first of water workes, The second of Fyer workes, The third of Drawing, Colouring, Painting, and Engraving, The fourth of divers Experiments, as wel serviceable as delightful: partl

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‏اللغة: English
The Mysteryes of Nature and Art
Conteined in foure severall Tretises, The first of water
workes, The second of Fyer workes, The third of Drawing,
Colouring, Painting, and Engraving, The fourth of divers
Experiments, as wel serviceable as delightful: partl

The Mysteryes of Nature and Art Conteined in foure severall Tretises, The first of water workes, The second of Fyer workes, The third of Drawing, Colouring, Painting, and Engraving, The fourth of divers Experiments, as wel serviceable as delightful: partl

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دار النشر: Project Gutenberg
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start asunder; and in the midst of that make a mortice, and in it fasten a strong peece of timber with a wheele like to the former mentioned; the pin whereof ought to bee made fast unto the wheele, and haue a crooked handle to turne about, that by turning of it, you may turne the wheele also. Then prouide a strong yron chayne of length sufficient, hauing on euery third or fourth linke a peece of horne, that will easily goe through the brasse barrell, and a leather of each side of it, but somewhat broader then the horne; put this chayne under the lower wheele in the Well upon both the hollow posts, draw it ouer the upper wheele, and linke it fast and straight. Turn then the handle round, and it will turne the chayne round, whose leathers comming up the brasse barrell, will beare the water before them; this goeth very strongly, and therefore had neede bee made with wheeles and wrought upon by horses, for so the water is wrought up at Broken Wharfe in London.

To make an Engin, which being placed in water will cast the same with violence on high.

Let there be prepared a strong table, with a sweepe fastened at the one end thereof, to lift up and downe; unto the end of the sweepe, let there be linked a peece of yron hauing two rods of length sufficient; let there bee made a hole quite through the midst of this table, whose diameter let be about fiue or six inches; then prouide two peeces of brasse in forme of hattes, but let the brim of the uppermost be but about one inch broad, and haue diuers little holes round about it; also in the crown of this must bee placed a large succur, and ouer it a half globe, from the top of which, must proceed a hollow trunke aboute a yard long, and of a good wide bore; then take good liquored leather, 2 or 3 times double, & put betweene the board and the brims of this, and with diuers little screws put through the holes of the brimme, screw it fast unto the top of the table. Note that the table must bee leathered also underneath the compasse of the brimme of the lower brasse. Now the lowermost brasse must be of equal diameter (in hollownesse) unto the other, but it must be more spirall towards the bottome, and must haue eyther a large clacke or succur fastned in it; also the brim of this must be larger then that of the uppermost, and haue two holes made about the midst on each side one; bore then 2 holes in the table, on each side of the brasse one, answerable unto the holes of the brim of the lower brasse, throgh which holes put the two rods, of the yron hanged unto the sweepe through them, and riuet them strongly into the holes of the lower brasse. Place this in water, and by mouing the sweepe up and downe, it will with greater violence cast the water on high.

Experiments of forcing water by ayer compressed.

Let there bee a large pot or vessell, hauing at the side a peece of wood made hollow, hauing a clacke of leather with a peece of lead upon it, within the vessell also let there be a pipe through the top of the vessell, reaching almost to the botom of it: at the top of which let there be a round hollow ball, and on it a small cocke of brasse. Note that if you fill the said vessell halfe-full of water, and blow into the hole of the pipe, at the side, your breath will lift up the clack, and enter the vessell, but when it is in, it will presse down the clack: blow into it oftentimes, so shall there bee a great deale of ayre in the vessell, which will presse so hard upon the water, that if you turne the cock at the top, the water in the vessell will spin out a good while.

Another.

Let A, B, C, D, be a great vessell, having a partition in the middle: let there bee a large tunnell at the top of it, E, F, whose neck must go into the bottom almost of the lower vessell: let there be a hollow pipe also coming out of the partition, and almost touch the top of the upper vessell. In the top of the upper vessell let there bee another pipe, reaching from the bottom of the upper vessell, and extending it selfe out of the vessell a good way: let the top of it hang ouer the tunnell. In the top of the upper vessell let there be a hole besides, to be stopped with cork, or otherwise: when you will use it, open the cork-hole, and fill the upper vessel with water: then stop it close againe, and poure water into the tunnell, and you shall see that the water in the upper vessell will run out of the pipe into the tunnell againe and so will continue running untill all the water in the upper vessell be run out. The reason thereof is this; the water in the tunnell pressing the ayre in the lower vessell, maketh it ascend the pipe in the partition, and presse the water in the upper vessell, which having no other way but the pipe, it runneth out thereat.

The forcing of water by pressure, that is the naturall course of water in regard of its heavinesse and thinnesse, artificially contrived to break out of what image you please.

Let A, B, C, D, bee a cestern placed upon a curious frame for the purpose, let the bottom of this frame be made likewise in the form of a cestern: Through the pillers of this frame let there passe hollow pipes from the bottom of the upper cestern, and descend to the bottom of the lower cestern, and then run all to the middle thereof, and joyne in one, and turne up into the hollow body of a beast, bird, fish, or what your fancy most affecteth: let the hole of the image whereat the water must break out, be very small, for so it will run the longer. Fill the upper cestern with water, and by reason of the weight thereof it will passe through the pipes, and spin out of the hole of the image.

Experiments of forcing water by Engins.

Let there bee an even streight barrell of brasse of what length and bignesse you please: let the bottom of it be open, and let the top be closed, but so that it be hollow on the outside like a basin: in the midst whereof let there bee a straight pipe erected, open at both ends, also let there be another short pipe at the side of it, which let bee even with the top of the basin on the outside, but stand a little from it on the side. Having thus prepared the barrell, fit a good thick board unto it, so that it may slip easily up and down from the top of the barrell unto the bottom, nayle a lether about the edges of it, and another upon the top of it: on the underside of it let there be fastned a good stiffe, but flexible spring of steele, which may thrust the board from the bottom to the top of the barrell: let the foot of this spring rest upon a barre fastned acros the bottom of the barrell; let this board also have tied at the middle a little rope of length sufficient. When you use it, bore a little hole in the table that you set it on, to put the rope thorow, and pull the rope down, which will contract the spring, and with it draw down the board: then poure in water at the basin untill the vessell be full: Note then, as you let slack the rope, the water will spirt out of the pipe, in the middle, and as you pull it straight, the water will run into the vessell

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