Gravity Clock for Mac OS X has ticked to version 3.0.

The app combines a physics simulator with a minimalist clock design to create the 21st century successor of an hour glass. It not only shows the current time, but also visualizes the passage of time in a tangible way by the permanent destruction and reconstruction of the clock face. Every second the hand breaks numbers out of the dial and lets them drop to the floor.

Gravity Clock for Mac 3.0 requires mac OS X Yosemite or El Capitan. It costs $0.99 and is available at the Mac App Store ( in the Utilities category.