Month: July 2009

  • The Reverse Brazil Nut Problem

    http://prola.aps.org/abstract/PRL/v86/i15/p3423_1 Reverse Brazil Nut Problem: Competition between Percolation and Condensation Daniel C. Hong, Paul V. Quinn and Stefan Luding Phys. Rev. Lett. 86, 3423 – 3426 (2001) In the Brazil nut problem (BNP), hard spheres with larger diameters rise to the top. There are various explanations (percolation, reorganization, convection), but a broad understanding or control…

  • Kings II K-edgeree

    http://blog.newhumanist.o…whats-your.html My old mates at the New Humanist tried and largely failed to interview Genesis P-Orridge for their last issue but it’s not all bad news because it has spawned a new game and competition: combine your favourite book of the Bible with your favourite breakfast food (must take the same hyphenated form as “P-Orridge”)…

  • Blood cools brain not other way around.

    http://brainstimulant.blo…modynamics.html Rather tickled to discover that contrary to the belief of some ancient greeks, it seems that the brain isn’t an organ for cooling the blood: Increasing [cerebral blood flow] in a specific deep brain region can cause a resultant decrease in brain temperature there. According to the author mammal’s brains can sustain a temperature…

  • The human body literally glimmers.

    http://www.plosone.org/ar…al.pone.0006256 Image: Laura Cone Imaging of Ultraweak Spontaneous Photon Emission from Human Body Displaying Diurnal Rhythm PLoS ONE: Neuroscience by Masaki Kobayashi et al. The human body literally glimmers. The intensity of the light emitted by the body is 1000 times lower than the sensitivity of our naked eyes. Ultraweak photon emission is known as…

  • I don’t feel your pain, Johnny Foreigner

    http://www.jneurosci.org/…ract/29/26/8525 The pain matrix including the anterior cingulate cortex (ACC) mediates not only first person pain experience but also empathy for others’ pain. It remains unknown, however, whether empathic neural responses of the pain matrix are modulated by racial in-group/out-group relationship. Using functional magnetic resonance imaging we demonstrate that, whereas painful stimulations applied to racial…