zeron2: using the ZeroN as a sun that will cast the virtual shadow of objects on the ground, users can simulate a lighting of his own world in a small scale.

Background Context:

In 2011 Jinha Lee created ZeroN at the MIT Media Lab. This physical computing project allowed the user to place metallic objects, in this case a metal ball, in midair where the ZeroN be able to maintain the object’s position. Additionally,  it can then manipulate the object and more it along paths or use it more creatively, such as using it as a camera in a 3D environment.

This project can be used to address a variety of problems as it allows the user to interact with and visualize problems in a new and very physical way. For example, ZeroN system can simulate light projected from the object as it moves in order to get a better view of how light dynamically affects your 3D environment. Additionally, it can model orbits that can be dynamically manipulated by the user in order to view the effects of their changes.

How ZeroN Works:

The project works by using an electromagnet to either repel or attact the object as needed to keep it in the air. Feedback is obtained through a Hall Effect Sensor so that the ZeroN can know where the object is. The object is then moved in the x and y directions by moving the electromagnet on a rig similar to how a 3D printer moves.

To allow for the programming of motion profiles by hand and to recognize objects in the interactive area, IR cameras are used to get data.

Relation to Class:

ZeroN shows a creative blend of mechanical and computational components.  While a little on the complex computational side, ZeroN does an amazing job of turning these computational modeling calculations into physical manifestations which the user can not only observe but also be a part of.

Additionally, this project does an amazing job of bringing the world of computer models into the real world by granting the user an interface into the computer through the use of physical objects.

A key take away from this project is the value of having your mechanisms hidden from the user. While it can be insightful to see how a task is accomplished, the ZeroN is very impressive and mystical when the ball appears to levitate on its own. This mysterious can either make a project more impressive or more confusing depending on its goal.

Video:

Source: http://tangible.media.mit.edu/project/zeron-levitated-interaction-element/