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SCIENCEGEEK ADVENT CALENDAR EXTRAVAGANZA! (DAY 18)

EXPLODING SNOWMAN VALIDATES (OR DRIVES) CLIMATE CHANGE MODELS (arXiv:1104.0061, By M.S. Brennwald, D.M. Livingstone, R. Kipfer – pdf) Abstract: The B\”o\”ogg is a large model of a snowman, constructed of inflammable materials and filled with explosives. During the traditional festival of Sechsel\”auten, which takes place each spring in Zurich, Switzerland, the B\”o\”ogg is placed atop a wooden pyre, which is set alight. According to popular legend, the time that elapses until the B\”o\”ogg’s head explodes (the “head-bang” time) is said to give a rough forecast of local weather conditions prevailing during the following summer. However, recent research has questioned the…

SCIENCEGEEK ADVENT CALENDAR EXTRAVAGANZA! (DAY 13)

IMAGES IN CHRISTMAS BALLS: A.K.A. CRAZY OPTICS CALCULATIONS (By Eef van Beveren, Frieder Kleefeld, George Rupp | pdf) Figure 6: The locations of the various images as seen by each of the five observers introduced in Fig. 1. We also indicate the angles of incidence and reflection, in order to make sure that they are equal. Abstract: We describe light-reflection properties of spherically curved mirrors, like balls in the Christmas tree. In particular, we study the position of the image which is formed somewhere beyond the surface of a spherical mirror, when an eye observes the image of a pointlike light source. The…

SCIENCEGEEK ADVENT CALENDAR EXTRAVAGANZA! (DAY 12)

An Administrative Approach from Santa Claus and Stork (JE May; CR Ribeiro; F Belini) Abstract: As a public domain, the Santa Claus is able to deliver in a single night million of products in different places in the entire world. On the other hand, the Stork also deliver a million of products a day but the delivery time can achieve nine months. In this work, it is discussed several considerations concerning these two characters of the word folklore, Santa Claus and Stork, trough the theoretical concepts of the administration, human resources, production and logistic. This work intends to facilitate the…

SCIENCEGEEK ADVENT CALENDAR EXTRAVAGANZA! (DAY 10)

PRETTIEST CHRISTMAS LIGHTS EVER (Animated gifs of epithelial cells doing the mitosis) Just staring at this makes us think about the brilliance of nature. Just consider the complexity of what’s going on during mitosis – you have a genome, compartmentalized with chromosomes, doubling. Then, you have a perfect splitting of the two copies into two separate cells! That’s like having a group of people in a room, then somehow making copies of all of them, and then getting them to split perfectly into two groups, so that one set of them can move (in an orderly fashion) to another room…

SCIENCEGEEK ADVENT CALENDAR EXTRAVAGANZA! (DAY 9)

AWESOME MICROBIAL CHRISTMAS ART!  Fungal plates by Stephanie Mounaud: Bacterial plates by Niall Hamilton. Fungal Christmas tree. Top: Talaromyces stipitatus; Tree: Aspergillus nidulans; Ornaments: Penicillium marneffei; Trunk: Aspergillus terreus. – – – – – – – – – Fungal snowman. Hat, Eyes, Mouth, Buttons: Aspergillus niger; Arms: Aspergillus nidulans; Nose: Aspergillus terreus with Penicillium marneffei; Body: Neosartorya (See previous day)