LOG#170. The shortest papers ever: the list.

Hi, everyone. In this short post I am going to discuss some of the shortest papers ever written all over the world!!!!! This idea came to my mind due to a post by @seanmcarroll on twitter and other social networks… … Continue reading

LOG#169. A two level problem.

This post is the solution of the following problem: pick an atom with two energy levels. They have a transition wavelength of 580nm. At room temperature are in the lower state. 1) How many atoms are in the upper state, … Continue reading

LOG#153. Guardians of the Galaxy and Special Relativity.

Dedicated to my followers, to my (cyber)friends around all over the globe, to those patient people who have been waiting for this reboot and also to Marvel for bringing us Guardians of the Galaxy in a superb and wonderful live-action … Continue reading

LOG#076. Pedro, in memoriam.

Today, I am going to remember a cool Spanish physicist that is not longer with us since the past summer ( he passed away relatively young, suddenly when he was only 65). His name was Pedro F. González-Díaz. And no, … Continue reading

LOG#058. LHC: last 2012 data/bounds.

Today, 12/12/12, the following paper  arised in the arxiv http://arxiv.org/abs/1212.2339 This interesting paper reviews the last bounds about Beyond Stantard Model particles (both, fermions and bosons) for a large class of models until the end of this year, 2012. Particle … Continue reading

LOG#023. Math survey.

What is a triangle? It is a question of definition in Mathematics. Of course you could disagree, but it is true. Look the above three “triangles”. Euclidean geometry is based in the first one. The second “triangle” is commonly found … Continue reading