Recent content by davidoux2020

Hi Haruspex, thanks for your message, Actually I have the final solution of this problem but not the details , the solution "should be" 2 and 10 DOFs are used as initial value then reduced by constraints down to 2. the final calculus (given) is 10 - 3[ground] - ( 6-1[Rolling Without Slipping...

I intuitively understand that it has 2 degrees of freedom (rolling without slipping - RWS), but I struggle to formalize this according to the rules of the art: I obtain: 10 - 3 (ground) - (rolling without slipping constraint) = 2 how to precisely calculate the RWS constraint? what formula and...

Hi all, I have a couple of noob questions regarding the Higgs Boson (HB) and it's recent "discovery" 1. if the HB is so heavy (I understood it is heavier than a proton) and permeates the universe, why is it so difficult to detect it or produce it ? 2. Why do we have to collide protons...