Dr. Hanson made a video about the Brazil Nut Effect, but called it the Raisin Bran Effect. To me, it will always be the âBrazil Nut Effectâ because thatâs the term that Jay Ingram used when discussing it 15 years ago on an episode of Discovery Channelâs âDaily Planetâ.ďťż
That said, even then, I was already familiar with the effect from having noticed that upon shaking a cup of instant coffee grounds and sugar, the sugar would sink and the coffee grounds would rise. Simple observation (and slow shaking) revealed that the difference in size and shape of the grounds and sugar crystals was the reason for the âgranular convectionâ.
Sorry Joe, but it I donât know if the Raisin Bran Effect will take.