Today I got access to a collection of very cool pictures of the CMS detector, one of the two experiments designed and built to study proton-proton collisions delivered by the Large Hadron Collider at CERN.

Many of those pictures, which were taken by Michael Hoch (CERN/CMS) in the last couple of years, have circulated in the web for a long time, and individual ones have been used in several places. However, they are very nice to browse one after the other. And I think they are even more interesting to watch if one has not had the privilege of visiting the giant detector in its underground cavern, during its assembly last year. So I take the liberty of showing them to you here, in case you missed them - or just like to refresh your memory on this technological marvel.

PARCELATORIES OF SECOND ORDER

don't exist in fact. What exists are counting processes, a human ability that consist in to quantify, measure, compare and enumerate objects. Any object!

Because they exist only in our imagination, numbers are only abstract objects we use to calculate our usual counts.

As any abstract object, it was necessary to create symbolic properties to represent them. But substantially, they don't exist! They are therefore, fundamental cognitive concepts.

However the counting is a more fundamental concept yet! So fundamental that we don't perceive it.