Translucent Ball Cavity Cube Vial

A device for determining the inclination level of a surface of interest comprising:

• a cube made of an at least translucent material, and having a sealed ball cavity in its center, said ball cavity being incompletely filled with a liquid medium such that a bubble is left inside of said ball cavity;
• a ball bearing, made of a material having greater density than that of said liquid medium, and wherein, said ball bearing is rolling freely inside said ball cavity;
• and
• markings associated with said cube, said markings being calibrated to function as reference points for said bubble and said ball bearing.

An artifact comprising:

• a cube made of an at least translucent material, and having a sealed ball cavity in its center, said ball cavity being incompletely filled with a liquid medium such that a bubble is left inside of said ball cavity;
• a freely floating globe inside said ball cavity;
• and
• markings associated with said cube, said markings being calibrated to function as reference points for said bubble and the globe.