Liminal Object #7, 1998.

Gary Hill's Liminal Object #7 points to the immeasurability of cycles of time and our ability to understand the relationships between the things around us. The relationship between the objects in the video - a gyroscope and an apple - invokes associations with gravity (Newton's apple), New York City, the solar system, and time itself; any interpretation is valid.
Liminal Object #7 is one of Hill's typically elliptical, contemplative videos featuring an apple and a gyroscope and inviting clever scrutiny. These objects are liminal, in that they push viewers to find the threshold of abstract thought, encouraging us to make unusual connections.

Liminal Object #7, 1998.

Sources: donaldyoung.com, res.com