Hydraulics.

in her Orbit, 8 the San in his. Nowall Bodies are endued with an attractsVirtue, the Moon will attract all theter in the nearest Hemisphere FAB, vsi^Degrees of Force which are inverselythe Squares of the Distances from all Parts'and therefore with the strongest F oi cS'where the Distance is least, viz. in ^Point A directly under her ; and thistraction being in this Hemisphere contra^/to that of the Earth, the. Water in all P^ 5

from B and F towards A will have th^

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Gravity gradually decreasing, and be light?of all at the Part A; and consequentlythere stand higher than at the Pointwhere they are more attracted by the Eat^’and so heavier,, as is evident from theof Hydrojiatics.

Ac Al*’

to

then, when it burst, the Power was so great,rend asunder the Body of the Instrument, not * nJointure, but in, the solid Metal, which was at l eal ^Hundredths of an Inch thick. It happily stood so jisty against the inner Part of the Mantle-Piece,beat it both Sides together by the Violence of the B so f) ,which, had it flown into the Room, must have y , £Sfatal to any one or more who should have been 111Way. '

4. To give an Idea of the great Force neccsthU j t 4hurst the Æolipile in the Manner above mention eC )’ ,,us proceed to Calculation. It has been found byb 3 is|»riment, that a Copper Wire-/ 0 of a Rkine-Land Ir> c ,Diameter was broke asunder by the Weight of 299^,5hung on to it. Now the Rhlne-Land Foot is t0LondcK Foot, as j 39 to 135 ; the Diameter th.eso Q {