* This condition of water is at the moment the droplet forms, and the tenacity of the water contends with the weight of the thread of that water. And when the weight is lacking, the water draws back and shortens and thickens and regains weight, and again it stretches out, and the thread, through its thinness, breaks, overcome by the weight of the water below, which by such weight continues on and breaks it, because it has more weight than it — for the water continually diminishes its entry into the thread, and the weight of the thread is greater than the water the spout supplies to it. But when the rain increases, the thread spends less than it gains, and then the contrary happens.

* The tiny threads are made of minute droplets, which divide off from the percussion of the reflected waves through diverse intersected courses of the waters.

d — c — b — a

* In the breaking of the thread, the parts of the remainder do the same as its whole does. And this is because each part strives to make itself spherical, and the upper part, which is near its nourishment, becomes thicker; and being continuous with the 3 spheres below, it draws them into its body, and the second does the same with the third, and the third with the fourth; and the spaces that are between them, where they join together, are those that convert into these spheres, always growing them as they rise, until they gather into the composition of the droplet above — which, having regained weight below and above, again lengthens and does the same as it did before.

One always begins to weave the one in the middle.

* Movers with their mobiles are of [2] natures, of which one is flexible and rare and the other is dense. And in each nature the mobile is joined to the power of its mover; and these conjunctions are of several natures, of which some are that the dense mobile is joined to the dense mover, and others are that the mobile is joined to those movers by means of some medium — as the solar body, which by means of its rays evaporates the moist, which moves in every direction through the motionless air, as does odour, or heat, or cold.

Of the compound motion of the straight and the revolving.

The rod that moves with a straight motion compounded with a revolving motion will have two different velocities, of which that will be slower which is more toward the middle, and the faster toward the ends. And to this is added a third motion, which is straight, and this is shorter than either of the two aforesaid, because it is made by the centre moved along a straight line. But if the rod is uneven in thickness, the heavier part will make itself the guide of the motion, its motion being made through the air.

And the part of the rod that is nearer to its mover will make a shorter movement, and the more remote will make a longer one.