Apparatus and methods for supporting an object

A support apparatus comprising:

• a first cylindrical rod comprising a first end portion and a second end portion, wherein the first cylindrical rod extends along a first rotation axis from the first end portion to the second end portion of the first cylindrical rod, and wherein the first end portion is provided with a first convex spherical segment and the second end portion is provided with a second convex spherical segment;
• a first area configured to receive a portion of the first convex spherical segment with the first cylindrical rod pivotable about a first pivot axis of the first convex spherical segment that is perpendicular to the first rotation axis of the cylindrical rod;
• a first fluid port in fluid communication with the first area;
• a second area configured to receive a portion of the second convex spherical segment with the first cylindrical rod pivotable about a first pivot axis of the second convex spherical segment that is perpendicular to the first rotation axis of the cylindrical rod and parallel to the first pivot axis of the first convex spherical segment;
• and
• a second fluid port in fluid communication with the second area.