“Touch the Invisibles” is an experimental interface using a miniature vibration device and bubbles to combine digital and real worlds. The silhouettes of life-forms are rendered on a computer monitor and their relationships are visualized through bubbles. When the user touches the silhouette, a small vibration is felt in the finger which replicates the perception of touch. Simultaneously, within the casing bubbles are generated, visualizing a cause-and-effect within two seemingly disparate worlds. The bubbles also function as a “bubble-log,” keeping track of the interactions between the digital and real worlds.