APS News

April 2015 (Volume 24, Number 4)

APS March Meeting: Know When to Fold 'em


Fingers on round thing
Photo: Scott Waitukaltis/Leiden University
Metasheet BII ST3 image
Photo: tai Cohen Group/Cornell University


At the APS March Meeting 2015 researchers showed how origami can inspire new devices. A group at Leiden University reported that 2D panels joined along fold lines (left) can pop in and out of stable 3D configurations. A similar toggle effect was seen with joined tiles (middle). A team at Cornell and the University of Massachusetts, Amherst, used a square-twist pattern to create structural toggle switches in paper (bottom) and in microscopic gel sheets that are actuated by temperature changes.


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Editor: David Voss
Staff Science Writer: Michael Lucibella
Art Director and Special Publications Manager: Kerry G. Johnson
Publication Designer and Production: Nancy Bennett-Karasik

April 2015 (Volume 24, Number 4)

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Articles in this Issue
New Director of ARPA-E on Transformative Technology
Breeding a Better Robot
Manufacturing Revolution May Mean Trouble for National Security
Planning Africa’s First Synchrotron
National Academies Studies Institutional Influences on Ethics
Programmable Materials
Physicists Look at Animal Behavior
What Makes a Physicist?
NSF and Congress Seek Rapprochement
Sole Physicist in Congress Prepares to Defend Science
APS March Meeting: Know When to Fold 'em
Members in the Media
This Month in Physics History
Education Corner
International News
Washington Dispatch
The Back Page