Paul Ducarme
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paulducarme.bsky.social
Paul Ducarme
@paulducarme.bsky.social
11 followers 12 following 4 posts
PhD student @AMOLF & @ARCNL
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Reposted by Paul Ducarme
techxplore.com.web.brid.gy
'Countersnapping' structures shrink when pulled
When you pull something—like a rubber band—you expect it to get longer. But what if it did the opposite? What if it suddenly shrank instead? In a study published in Proceedings of the National Academy of Sciences, researchers from AMOLF and ARCNL have made this possible. They created structures that snap inward when pulled outward.
techxplore.com
May 12, 2025 at 5:20 PM
Reposted by Paul Ducarme
albertocomoretto.bsky.social
Autonomous locomotion simply with tubes as limbs, and no brain? 🎈🤖

Yes, through physical synchronization! Our article is out today in Science (@science.org)

Article: www.science.org/doi/10.1126/...

Authors: @albertocomoretto.bsky.social, H.A.H. Schomaker, J.T.B. Overvelde

More below 🧪 ⚛️
(1/6)
May 8, 2025 at 6:15 PM
paulducarme.bsky.social
Our countersnapping metamaterial is featured in this week’s @science.org ‘s research highlights.

Full article in @pnas.org (open access)

doi.org/10.1073/pnas...

#metamaterial #mechanics #research #science #softmatter #countersnapping #braessparadox #amolf #arcnl #instability #counterintuitive
May 2, 2025 at 8:12 AM
paulducarme.bsky.social
An object that shrinks as you pull it? This is physically possible! All you need is a piece of rubber with a weird shape. This is just mechanics and geometry.

This discovery reveals phenomena that defy intuition, and unlocks functionalities that could not yet be achieved in mechanical systems.
April 22, 2025 at 4:24 PM
Reposted by Paul Ducarme
mechadense.bsky.social
So cool 😎 getting-shorter-when-pulled mechanism.
youtu.be/KxtkcL0z5j0?...
These structures shrink when pulled: Counter-snapping instabilities
YouTube video by AMOLF
youtu.be
April 18, 2025 at 12:34 AM