Brazil nut effect (IMAGE) University of Warsaw, Faculty of Physics Caption In a bag of mixed nuts, after shaking, smaller nuts fill in the gaps created at the bottom, pushing the larger Brazil nuts to the top. Credit User:Melchoir, CC BY-SA 3.0 <http://creativecommons.org/licenses/by-sa/3.0/>, via Wikimedia Commons Usage Restrictions Credit must be given to the creator. Adaptations must be shared under the same terms. License CC BY-SA Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.