First of all, thank very much for this constructive comment!

Yes, I agree with you on the sources. Actually, I use Wikipedia sources to prove that what I say is correct, because all the things I said for the moment are from my courses, but I can't quote my courses. Of course, I look before on the Wikipedia page to see if it's correct. But you right, I will put more scientist article and reviews for next chronicles!

My English... Arf... Yes, this is my big problem, this is not my native language and I never been good in English. But actually, I'm in Australia to improve my English, so, writing my chronicles in English help me for that. I hope that this doesn't prevent to understand my posts...

I try to take relevant and original analogies to explain life process, this is my way to be original. I chose to not explain how sciences work, this is why I never speak about techniques or perspectives. Also for the moment, we don't deal with very original subjects, these first chronicles are to defines some process to understand better the more complex chronicles.

Thank you @lesshorrible and hope that you will prefer the next chronicles!