wait decades before atom hackers
(material scientists, self-organizing
nano-robot engineers, etc.) can
invent the enabling technologies
for Radical Atoms, we believe the
exploration of interaction design
techniques can begin today.
The vision of Radical Atoms has been
developed through a series of design
workshops since 2008. More than two
dozen past and current members of the
Tangible Media Group and colleagues
in the MIT Media Lab have contributed
to shape the concept and articulate
the interaction techniques and possible
applications. We would like to thank
all listed here for their contributions:
Amanda Parkes, Hayes Raffle, James
Patten, Gian Pangaro, Dan Maynes
Aminzade, Vincent Leclerc, Cati
Vaucelle, Phil Frei, Victor Su, Scott
Brave, Andrew Dahley, Rich Fletcher,
Jamie Zigelbaum, Marcelo Coelho, Peter
Schmitt, Adam Kumpf, Keywon Chung,
Daniel Leithinger, Jinha Lee, Sean
Follmer, Xiao Xiao, Samuel Luescher,
Austin S. Lee, Anthony DeVincenzi,
Lining Yao, Paula Aguilera, Jonathan
Williams, and the students who took
the Fall 2010 Tangible Interfaces
course. We thank the TTT (Things
That Think) and DL (Digital Life) consortia of the MIT Media Lab for their
support of this ongoing project. Thanks
are also due to Neal Stephenson, whose
science fiction novels and talks inspired
us, and Ainissa Ramirez of Yale
University, who advised us about the
state of the art of material science.
20. Toffoli, T. and Margolus, n. Programmable mat-
ter: Concepts and realization. Physica D: Nonlinear
Phenomena 47, 1-2 (Jan. 1991), 263-272.
21. abelson, H., allen, D., Coore, D., Hanson, C.,
Homsy, G., Knight, Jr., T. F., nagpal, r., rauch, E.,
Sussman, G. J., and Weiss, r. amorphous comput-ing. Commun. ACM 43, 5 (May 2000), 74-82.
22. Gilpin, K., Kotay, K., rus, D., Vasilescu, I.
Miche: Modular shape formation by self-disassem-bly. The International Journal of Robotics Research
27, 3-4 (Mar. 2008), 345-372.
23. Gershenfeld, n. et al. The Milli Project; http://
24. Janocha, H., ed. Adaptronics and Smart
Structures: Basics, Materials, Design, and Applications
(2nd ed.). Springer, berlin, Heidelberg, 2007.
25. aksak, b. et al. Claytronics: Highly scalable
communications, sensing, and actuation net-works. Proc. of the 3rd International Conference on
Embedded Networked Sensor Systems (SenSys
‘05). aCM, new york, 2005, 299-299.
26. Griffith, S., Goldwater, D., and Jacobson, J.
Self-replication from random parts. Nature 437, 636.
27. Oxman, n. and rosenberg, J. L. Material-based
design computation: an Inquiry into digital simu-lation of physical material properties as design
generators. International Journal of Architectural
Computing (IJAC) 5, 1 (2007), 26-44.
28. Sutherland, I. E. The ultimate display. Proc. of
the IFIP Congress. 1965.
1. Ishii, H. and Ullmer, b. Tangible bits: Towards
seamless interfaces bet ween people, bits and
atoms. Proc. of CHI’97. aCM Press, new york, 1997,
2. Ishii, H. Tangible bits: beyond pixels. Proc. of the
2nd International Conf. on Tangible and Embedded
Interaction ( TEI ‘08). aCM, new york, 2008, 15-25.
3. Weiser, M. The computer for the 21st century.
Scientific American 265 (Sept. 1991), 94-104.
4. Underkoffler, J. and Ishii, H. Urp: a luminous-
tangible workbench for urban planning and design.
Proc. of the SIGCHI Conference on Human Factors
in Computing Systems: The CHI is the Limit (CHI
‘99). aCM, new york, 1999, 386-393.
5. Parkes, a., Poupyrev, I., and Ishii. H. Designing
kinetic interactions for organic user interfaces.
Commun. ACM 51, 6 (Jun. 2008), 58-65.
6. brave, S., Ishii, H., and Dahley, a. Tangible inter-
faces for remote collaboration and communication.
Proc. of the 1998 ACM Conference on Computer
Supported Cooperative Work (CSCW ‘98). aCM,
new york, 1998, 169-178.
7. Frei, P., Su, V., Mikhak, b., and Ishii, H. Curlybot:
Designing a new class of computational toys. Proc.
of the SIGCHI Conference on Human Factors in
Computing Systems ( The Hague, The netherlands,
apr. 1-6). aCM Press, new york, 2000, 129-136.
8. raffle, H.S., Parkes, a.J., and Ishii, H. Topobo: a
constructive assembly system with kinetic memory.
Proc. of the SIGCHI Conference on Human Factors
in Computing Systems (CHI ‘04). aCM, new york,
9. Parkes, a. and Ishii, H. Kinetic sketchup: Motion
prototyping in the tangible design process. Proc.
of the 3rd International Conference on Tangible and
Embedded Interaction ( TEI ‘09). aCM, new york,
10. Parkes, a. and Ishii, H. bosu: a physical pro-
grammable design tool for transformability with soft
mechanics. Proc. of the 8th ACM Conference on
Designing Interactive Systems (DIS ‘ 10). aCM, new
york, 2010, 189-198.
11. Pangaro, G., Maynes-aminzade, D., and Ishii,
H. The actuated workbench: Computer-controlled
actuation in tabletop tangible interfaces. Proc. of
the 15th Annual ACM Symposium on User Interface
Software and Technology (UIST ‘02). aCM, new
york, 2002, 181-190.
12. Patten, J. and Ishii, H. 2007. Mechanical con-
straints as computational constraints in tabletop
tangible interfaces. Proc. of the SIGCHI Conference
on Human Factors in Computing Systems (CHI ‘07).
aCM, new york, 2007, 809-818.
13. Piper, b., ratti, C., and Ishii, H. Illuminating clay:
a 3-D tangible interface for landscape analysis.
Proc. of the SIGCHI conference on Human Factors in
Computing Systems: Changing Our World, Changing
Ourselves (CHI ‘02). aCM, new york, 2002, 355-362.
14. Leithinger, D., Lakatos, D., DeVincenzi, a.,
blackshaw, M., and Ishii, H. Direct and gestural
interaction with relief: a 2.5D shape display. Proc. of
the 24th Annual ACM Symposium on User Interface
Software and Technology (UIST ‘ 11). aCM, new
15. Lee, J., Post, r., and Ishii, H. Zeron: Mid-air
tangible interaction enabled by computer controlled
magnetic levitation. Proc. of the 24th Annual ACM
Symposium on User Interface Software and Technology
(UIST ‘ 11). aCM, new york, 2011, 327-336.
16. Gibson, J. J. The theory of affordances. In
Perceiving, Acting, and Knowing: Toward an
Ecological Psychology. Wiley, Hoboken, 1977.
17. Transcript of a talk presented by richard P.
Feynman to the american Physical Society in
Pasadena on December 1960; http://calteches.
18. Saito, r., Dresselhaus, G., and Dresselhaus,
M.S. Physical Properties of Carbon nanotubes.
University of Electro-Communications, Tokyo, 1998.
19. nielsen, M.a. and Chuang, I. Quantum
Computation and Quantum Information. Cambridge
University Press, Cambridge, U.K.:new york, 2000.
About thE Authors
Hiroshi Ishii is the Jerome b.
Wiesner Professor of Media arts
and Sciences at the MI T Media
Lab. Ishii’s research focuses upon
the design of seamless interfaces
between humans, digital informa-
tion, and the physical environment. His team seeks
to change the “painted bits” of GUIs to “tangible
bits” by giving physical form to digital information.
Dávid Lakatos is a graduate stu-
dent in the Tangible Media Group
at the MI T Media Lab. His
research focuses on interaction
design with future dynamic mate-
rials, at the intersection of
mechanical engineering, material
design, and philosophy.
Leonardo bonanni completed his
Ph.D. and postdoctoral work with
the MIT Media Lab’s Tangible
Media Group, where he taught
sustainable design and devel-
oped interfaces for exploring the
lives of objects. He is founder and
Jean-baptiste Labrune is a
researcher at the MI T Media Lab
specializing in human-machine
creativity. He is also lab director
at bell Labs in their application
domain, where he leads research
projects involving interdisciplinary
teams from the human sciences, design, and tech-
January + February 2012
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