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published by the Science@NASA
This article from NASA delves into the strange behavior of bagged blocks of coffee. A vacuum-sealed package of coffee will change from a hard brick to a soft pile of ground beans when exposed to air. The article explains why NASA scientists want to study granular materials and some of the problems faced by researchers.
Subjects Levels Resource Types
Modern Physics
- Chaos & Non-linear Dynamics
Motion, Forces, and Energy
- Applications of Newton's Laws
- High School
- Lower Undergraduate
- Informal Education
- Reference Material
= Article
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Additional Information
Physics To Go This resource was a Physics To Go feature from September 16, 2009 until October 1, 2009. View the feature here!

Access Rights: Free access
Restriction: © 2002 NASA
Has a copyright or other licensing restriction.
Keywords: coffee, granular materials
Record Creator: Metadata instance created September 16, 2009 by Raina Khatri
Record Updated: Apr 23, 2010 by Lyle Barbato
Last Update
when Cataloged:
December 4, 2002
ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
(Science@NASA, Greenbelt, 2002), WWW Document, (
Confounded by Coffee (Science@NASA, Greenbelt, 2002), <>.
APA Format
Confounded by Coffee. (2002, December 4). Retrieved October 3, 2023, from Science@NASA:
Chicago Format
Science@NASA. Confounded by Coffee. Greenbelt: Science@NASA, December 4, 2002. (accessed 3 October 2023).
MLA Format
Confounded by Coffee. Greenbelt: Science@NASA, 2002. 4 Dec. 2002. 3 Oct. 2023 <>.
BibTeX Export Format
@misc{ Title = {Confounded by Coffee}, Publisher = {Science@NASA}, Volume = {2023}, Number = {3 October 2023}, Month = {December 4, 2002}, Year = {2002} }
Refer Export Format

%T Confounded by Coffee %D December 4, 2002 %I Science@NASA %C Greenbelt %U %O text/html

EndNote Export Format

%0 Electronic Source %D December 4, 2002 %T Confounded by Coffee %I Science@NASA %V 2023 %N 3 October 2023 %8 December 4, 2002 %9 text/html %U

Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.

Citation Source Information

The AIP Style presented is based on information from the AIP Style Manual.

The APA Style presented is based on information from APA Electronic References.

The Chicago Style presented is based on information from Examples of Chicago-Style Documentation.

The MLA Style presented is based on information from the MLA FAQ.

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