Hydraulic devices, water efflux and a note on a bombard
A bucket, a siphon-like apparatus and cylindrical vessels, among many drawn mechanisms.
The two fragments of this sheet are crowded with mechanical devices, among which the transcribed notes concern water. A bucket for drawing water is labelled, with the remark that dense stone weighs twice as much as water, and a lettered apparatus (a, b, d, c, f) describes water and air rising and falling and returning to where they began. A further note compares cylindrical reservoirs discharging through equal holes, one sideways and one downward, judging the sideways jet slower. Fragmentary lines mention something that raises the bombard and begin 'Tell me'; an octagonal figure and many pumps, screws and fittings are drawn but not transcribed.
On this page
A bucket for drawing water; stone versus water
At the upper margin a bucket from which water can be drawn is drawn and labelled, with the accompanying note that dense stone weighs two times more than water.
A lettered water-and-air apparatus
The apparatus is labelled a, b, d, c, f: a returns to b and e returns to d, and when a reaches the low point b, c has risen to b; then the air of b descends into f, returning to where it started.
Sideways versus downward efflux from equal vessels
Two cylindrical vessels a and b are compared: if equal reservoirs discharge through equal holes in the bottom, one throwing sideways and the other downward, the sideways jet is the slower.
A fragment on raising the bombard
In the upper-left corner a broken line survives, reading '... that raises the bombard', evidently part of a note on elevating or mounting a piece of artillery.
Untranscribed pumps, fittings and an octagonal figure
Both fragments are filled with drawn mechanisms including pumps, screws, hinged fittings and a large octagonal geometric diagram. These are drawn rather than transcribed and are not covered by the given text.