Buch 
Natural magick in twenty books : wherein are set forth all the riches and delights of the natural sciences
Entstehung
Seite
210
JPEG-Download
 

no Natural Magick. Doo^7.

will presently return to their postures, and depart as far as they can from oneanother. The reason is this : That if two Needles stick fast to one Northernpoint of the Loadstone, with their points: you must imagine, that they did re-ceive a Southern vertne ; and because they are of the fame similitude, they willnot endure one the other ; and because they are fastened to the Loadstone, theycannot get off being compelled by a greater force : but the opposite points of theNeedle , because they are both alike Northerly, they must needs abhor onethe other: and when they are free, one will part from the other. And whenthey are so hanging on, if you put to them the Southern part of another Load-stone , they will presently let go their hold , and go a» far off as they can , thatsometimes they arc pulled off from the Loadstone,being forced by an invisible vapor.

Chap. XLII.

That the force of the Iron t hat draws , wtU drive off Iron by diversity of Simation.

T Hat, as I said of the Loadstone alone , is true of the Iron that is touched withit: for if you put a Needle touched with a Loadstone by a Boat, swimming inthe Water, or hanged by a Threed, or turning on a jxoint equally balanced : if yonput upon this a Needle touched with Loadstone, it will draw it : and that partthat attracted the Iron above, will put underneath , drive it away ; and the partthat drives off above, will draw to it, put underneath: where you may observe,thatthe position will work contrary operations.

Ch a p. XLIII.

The Needle touched by the Loadstone on one parts doth not alwayes receive Venue on

both partt.

T F the Needle be touched at one end by the Loadstone, it receives Venue ft that1 end ; and at the other end, the contrary vertue : But that most not be under-stood absolutely, but of that Needle that is of a proportionable length: for if itbe too long, the vertue will not come to the other end. But would we know howfar the vertue is come, we must know how far reached the Circumference of theVertue, as I said. Therefore if the Circumference of it be a foot, the force wiltgo a foot-lon® into the Needle. If we would try this : Touch a long Needle threefoot long with a Loadstone at one end, if it touch the Iron at the other end, theIron touched will not move from its place ; but if you touch.it a foot or two long*namely, as far as the Circumference of the Loadstones Vertue will reach-, aud thentouch the Needle, it will presently move and be drawn by it.

Chap. XL1V.

The Needle touched in the middle by the Loads one , fendt forth itt sorer ut

both ends .

JF the Needle be somewhat too long, and we rub it with the stone in thetniddleA of it, the forces of the stones part are diffused to both ends of it - but very ob-scurely; for you shall not know which is the end:but if yon touch it something fartherfrom the middle, the ncercr part will receive the forces of the part that touchedit,be it the Northerly or Southerly part.

C HrA,P.