This instance of my "guess the plot" contest will be hopefully raising fewer controversies than the former one. You are asked to explain what the figure represents, possibly guessing the units on the x and y axes.

More advanced readers may know at a glance what this plot is and where it comes from. To them, I ask the favour to wait one day (to not spoil the game to the less knowledgeable users) before trying a harder challenge: by heart, explain the meaning of every single distribution shown -e.g. provide the correct key of the masked legend on the right.

"I envy University Professors. They are paid to question people who know nothing but try very hard to say something, while I have to question people who know everything but do their utmost to say nothing at all."

Piercamillo Davigo, Italian Judge investigating corrupt politicians

I am quite happy today to announce here that there is a new blog to visit, and to bookmark!, for those among you who are interested to know what does a PhD in physics do after he or she graduates. In particular, as is explained in the subtitle, the question that the blog addresses are:

What are the sectors of employment for a physics graduate? How do you get a job in keeping with your studies/interests?

How could I miss it - and you did too. A very comprehensive article on standardization as a way to reduce environmental pollution has appeared here, and has almost gone unnoticed. I think it is worth reading, if only to acknowledge the existence of this issue and the need for all of us to pay attention to it.

Here is an excerpt of Enrico's conclusions from the study: