It is possible to adjust the apparatus so that a tilt of Tolua sec. of arc, or a change of slope of t in.
The most recent such episode has given the archipelago a tilt toward the northeast.
Not all models tho are fitted with a tilt safety shut-off.
The holder is attached onto a tilt swivel and can be adjusted in order to avoid light reflection.
The result is synchronizing the movement of the chair with the body's pivot points to create a tilt movement that doesn't lift or stress the body.