I think both ..
I mean ..Physiological changes could happen ..& there are Psychological changes too..
& the theory of Full Moon is famous enough (the Tides effects on the Blood circulation that make the human being worry & nervous )
& it depends on your mood too ..for me ,I solve biology H.W...
the system of my education is not like yours ..
but you can consider that is my 2nd year (with) chemistry
the first year -most of it- was an endless equations :cool:
anyway it is ok after all -for me at least!-
actually ..in MY book they are talking about the octet rule as a main rule
I mean.. it works with all the compounds except some odd of them
& I still do not know the structure of (SnCl2):shy:
a question in Lewis structure?
[FONT="Comic Sans MS"]I know that Lewis structure is so easy to discuss ..but I have this compound :
[SIZE="4"]SnCl2
when I drew the Lewis structure of its , I had to make Double bond between the Cl & Sn
..but a teacher told me once that when the Cl is not the...
"you will be the best as always Lama..your dreams are going to be truth very soon ..& work hard for the eleventh year exams because you will be sick & won't study well .."
Have you ever been in a green ,open place where your lungs full of fresh air ??
maybe you're asking what is the connection between this & the existence ??
this question is not new ,& you know Copernicus & his story with the church to prove that the Earth is not the centre of the universe ...
of course the time is NOT Infinite ..
when we think about the time as a dimension ,we can guess that every particle in our world have his forth dimension (the time)..I mean .. the time has started with the big bang ,after that the other dimension appeared respectively ..& as some of you said...
I'm going with you in this ..& if we have a phylosophical thinking ,we'll know that the travel to the past is out of the question..if it does .we won't be here ..the sky won't be the sky ..the water won't be the water .. briefly ,we may even have an antipode universe ..
I think this is the logistic reply ..
I asked a teacher about this ,he told me that if we considered the energy between the electron & the proton equal zero before gravitation ,then the attraction would lead to lose energy & that make the energy of electron always minus (we find that in Bohr's...
what do we mean by"minus" energy ??
[FONT="Comic Sans MS"]in the classic physics the minus energy express the gain or loss of the particle ..but when we substitute in the quantum theory lows ,the electron has a minus energy ..I think the energy is not like the charge to be minus ..& I can not...