Lampas, or Descriptions of Mechanical Improvements of Lamps and Waterpoises

liquid contained in FGOZF. And if it is at all original: "any whit" lower, as at IK, the wedge KIB must be too light to balance the counterbalancing wedge AOC by the weight of the liquid contained in the space ZOTKZ. I have just now shown that AOC exactly balanced ZOB, which was the point to be proved.

Although in this instance I have chosen to explain this using a globe, that specific shape is not necessary. It can be made of any shape whatsoever that is rotated upon an axis or poles, so that wherever that shape is cut by a plane original: "Plain" perpendicular to the axis, the surface original: "Superficies" of that shape will form a circle with its center on that axis. This applies whether the shape is a cylinder, a cone, or any other conoid original: "Conoeidical", mixed, regular, or irregular figure—such as the figures ABCDEFG, which represent the cross-section original: "Section" of the vessel through the axis.

The second way for balancing original: "poysing" the liquid and keeping its surface always at an equal height is this:

Make a hollow container original: "Concave Receptacle" for the oil or liquid in the shape of a hemisphere, half-cylinder, half-cone, or any other half-round hollow shape. This is done by cutting the rotated shape into two parts along the axis original: "per Axin". The axis is placed horizontally, and the flat section along the axis original: "plain Section per Axin" is likewise placed horizontally, so that it may be filled with any liquid up to that plane. To ensure that the liquid is not likely to splash, be shaken, or leak original: "filter over", it will be useful to extend the rims of that container somewhat above the half-round shape, so that there may be about half or three-quarters of an inch of empty space above the surface of the oil. To ensure that the plane along the axis original: "Plain per Axin" remains horizontal regardless of what surface the base stands on, it is best to suspend the container within a frame in the same way a mariner's compass original: "Sea-mans Compass" is suspended: