If you agitate a mixture of different sized particles of the same density, the larger ones will rise to the top. In the case of a can of mixed nuts, that would be the brazil nuts. So it's not actually a conspiracy to place the high value nuts on top with the peanuts hidden below, it is a natural phenomenon that happens in shipping. -----Original Message----- From: pbs [mailto:pbs-bounces@lists.ibiblio.org] On Behalf Of arnold140@verizon.net Sent: Friday, January 23, 2015 3:46 PM To: pbs@lists.ibiblio.org Subject: [pbs] gethyllis cold tolerance (Rick Buell) 'brazil nut effect'. ?? Arnold New Jersey