Evidence map›Paper›PMID 32494699›Full record

ArticleScience advances2020

Tunable solidification of cornstarch under impact: How to make someone walking on cornstarch sink.

Ran Niu, Meera Ramaswamy, Christopher Ness, Abhishek Shetty, Itai Cohen

Abstract read
In one paragraph

Article in Science advances, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Ran NiuDepartment of Physics, Cornell University, Ithaca, NY 14853, USA.ORCID 0000-0001-7791-3914
Meera RamaswamyDepartment of Physics, Cornell University, Ithaca, NY 14853, USA.ORCID 0000-0001-9220-2256
Christopher NessDepartment of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge CB3 0AS, UK.ORCID 0000-0002-0842-2537
Abhishek ShettyAnton Paar USA, 10215 Timber Ridge Drive, Ashland, VA 23005, USA.
Itai CohenDepartment of Physics, Cornell University, Ithaca, NY 14853, USA.ORCID 0000-0001-9218-043X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hundreds of YouTube videos show people running on cornstarch suspensions demonstrating that dense shear thickening suspensions solidify under impact. Such processes are mimicked by impacting and pulling out a plate from the surface of a thickening cornstarch suspension. Here, using both experiments and simulations, we show that applying fast oscillatory shear transverse to the primary impact or extension directions tunes the degree of solidification. The forces acting on the impacting surface are modified by varying the dimensionless ratio of the orthogonal shear to the compression and extension flow rate. Simulations show varying this parameter changes the number of particle contacts governing solidification. To demonstrate this strategy in an untethered context, we show the sinking speed of a cylinder dropped onto the suspension varies markedly by changing this dimensionless ratio. These results suggest applying orthogonal shear while people are running on cornstarch would de-solidify the suspension and cause them to sink.

Identifiers

PMID32494699
PMCPMC7209985

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.