Doc Madhattan

Text extracted from "The magician's own book, or The whole art of conjuring" (1862) by George Arnold This can be shown by a beautiful philosophical toy which may easily be constructed. Procure a glass jar, such as is here represented. Then mould three or four little figures in wax, and make them hollow within, and having each a minute opening at the heel, by which water may pass in and out. Place them in the jar, as seen in the figure, and adjust them by the quantity of water admitted to […]

posted by @ulaulaman via @LuciaMarino81 about #heavymetal #collectivemotions #physics #fluiddynamics During the APS March Meeting 2013, Matthew Bierbaum with Jesse Silverberg, James P. Sethna and Itai Cohen from Cornell University, presented a curious study about the heavy metal mosh pits: studing the people during the moshing, the researchers find two types of collective motions: mosh pits, in which participants collide with each other randomly in a manner resembling an ideal gas, and […]

An electron encountered a positron: they are inexorably drawn towards each other, but their combination is intended to be fatal, and from their union remains only a photon, traveling... and traveling... and traveling... and occasionally it disappears, it decomposes into an electron and a positron. These, however, are futile images, as long as they do not possess enough energy to go away, to far away from each other. Until the next waltz. The image (via Quantum Diaries) represent a Feynman's […]

Some days ago, ATLAS has been released a draft about the spin of the new boson. The decay channels studied are the fab four: $H \rightarrow \gamma \gamma$, $H \rightarrow WW^*$, $H \rightarrow l\nu l\nu$, $H \rightarrow ZZ^* \rightarrow 4l$. The idea is combining data from the four channels in order to understand the spin of the new boson, in detail to distinguish between two cases: spin 0 ($J^P = 0^+$), and so a boson compatible with the Standard Model, and spin 2 ($J^P = 2^+$), that it could […]

This one-page comic story published on Race to the Moon #2, that is now in public domain, is referred to an old theory proposed by Heinrich Wilhelm Matthäus Olbers, a german astronomer: His bold hypothesis of their origin by the disruption of a primitive large planet, although now discarded, received countenance from the finding of Juno by Harding, and of Vesta by himself, in the precise regions of Cetus and Virgo where the nodes of such supposed planetary fragments should be situated. The […]