FloTree: a multi-touch interactive simulation of evolutionary processes

Authors:
Kien Chuan Chua;Yongqiang Qin;Florian Block;Brenda Phillips;Judy Diamond;E. Margaret Evans;Michael S. Horn;Chia Shen
Affiliations:
Harvard University & Harvard University, Cambridge, Massachusetts, USA;Tsinghua University & Harvard University, Cambridge, Beijing, China;Harvard University, Cambridge, Massachusetts, USA;Harvard University, Cambridge, Massachusetts, USA;University of Nebraska State Museum, Lincoln, Nebraska, USA;University of Michigan, Ann Arbor, Michigan, USA;Northwestern University, Chicago, Illinois, USA;Harvard University, Cambridge, Massachusetts, USA
Venue:
Proceedings of the 2012 ACM international conference on Interactive tabletops and surfaces
Year:
2012

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Abstract

We present FloTree, a multi-user simulation that illustrates key dynamic processes underlying evolutionary change. Our intention is to create a informal learning environment that links micro-level evolutionary processes to macro-level outcomes of speciation and biodiversity. On a multi-touch table, the simulation represents change from generation to generation in a population of organisms. By placing hands or arms on the surface, visitors can add environmental barriers, thus interrupting the genetic flow between the separated populations. This results in sub-populations that accumulate genetic differences independently over time, sometimes leading to the formation of new species. Learners can morph the result of the simulation into a corresponding phylogenetic tree. The free-form hand and body touch gestures invite creative input from users, encourages social interaction, and provides an opportunity for deep engagement.