Tnad

Allow me to make some clarifications 1. Of course no! actually the second post was directed to IA; I wanted you to consider the first.thanx. 2.@ VedekPako True that it is not false because it is used by politician.and I didn't say so. I said it is exaggerated(by some scientist or wrongly explained) in order to gain support from goverments.Thus a propaganda. 3.@IA I think I either misunderstood your qn or you misunderstood me. You asked why I think it is a propaganda thus I looked at the qn in a political angle and that is how I answered (in politics,quotes are not crap). However even If you re-read my first post, I first said that i do not believe that it is a result of man activities there follows that I believe it is a result of other activities not controlled by man. actually,the political side of the fact doesn't matter when comes to my exams. If you did google the people I mentionned, you should have realised that they are scientists not politicians.their research is Scientific and that is why I referred you to them. They explain it better "scientifically" unless you wanted me to reproduce their works to show why I desagree "scientifically". 4. Pliz, consider my first post , that is the problem for which I need the answer. not the explanation of my political views which has nothing to do with my exams. Thank you!

Well,of course I dont have one answer to that but many or a long one. It's a propaganda bcoz 'it is an idea that is false or exaggerated ,used to gain support from a political leader'; do you thing GW is not fit within that definition? What was the aim of the copenhaguen and all these other meetings about global warming? do you think any leader can maybe say that he is not interested in GW business and still be considered 'normal'( I can't find the right term). any world leader MUST support the idea.Is it the case for other sientific issues? I think of let say leader X decides there will be no more space exploration projects funded by the gov't, no matter the importance, it won't be such an issue except in the scientific community but politically, who cares? It's not a 'MUST support' issue! '"the essence of the Greens’ theory of global warming—has about as much basis in science as Marxism and Freudianism. Global warming, like Marxism, is a political theory of actions, demanding compliance with its rules. Marxism, Freudianism, global warming. These are proof—of which history offers so many examples—that people can be suckers on a grand scale. To their fanatical followers they are a substitute for religion. Global warming, in particular, is a creed, a faith, a dogma that has little to do with science. If people are in need of religion, why don’t they just turn to the genuine article? —Paul Johnson do you think Paul is absolutely wrong! I don't think so. "Global warming is a topic that sprawls in a thousand directions. There is no such thing as an ‘expert’ on global warming, because no one can master all the relevant subjects. On the subject of climate change everyone is an amateur on many if not most of the relevant topics.” True or not? I can't tell all the facts WHY, but here are some people, who,in their respective areas and with their respective abilities, have done some studies and researches about the 'untold' side of the issue. Prof Bob carter(Reaserch prof ,Australia),Willie soon(astrophysicist,harvard). Google them, there are related articles about their assertions. Then u can compare and make your conclusion.(some articles will be against them of course but it's suprising to observe how some people don't want to look at the other side of the issue!why?!!) Again thanx for all the advices .They are welcome.

Great!You mean magnetism is affected by temperatures! By the way, why do the magnetic field lines have to cross from pole to pole if they originate from the center?(case of the sun) and the creation of sunspots is linked( thaugh maybe indirectly) to the twisting of magnetic flux tubes at the sun equator(due to faster rotation) which slows the convection currents ....etc right? so the rotation also affects the magnetic field ? how is it linked to the electric conductors which had generated the magnetic force?

I am a science student who do no longer believe that global warming & climate change (theory) are results of man activities. Yeah, i believed it sometimes back but now I am convinced that it is just a propaganda, a way of making money from governments.(but u're not obliged to believe it too!). My problem is that in order to get marks in exams I am supposed to defend and clearly( if not persuasively) convince the teacher that it is the case.(You know all these chemistry eqns, physics ,essays and whatever is taught about global warming as a result of Co2 emissions ,etc.. when for me I believe otherwise.what should I do? Thank you!

allow me to add also that through fusion it gives birth to Helium, a noble gas by excellence just like any other prince! any one who knows the source of life on earth? H20 makes the difference between us and other planets. The sun makes life possible too. All these are not negligeable jobs done by anyone of the court. But specific people, the leaders i.e. Royal family. & I believe H is better fit for queen.

Great, that sounds logical.But what do you mean by 'the moving conductor'? I also thought that the magnetic property of earth depends on the fact that the planet structure is dominated by Iron and Nickel ( i.e. magnetic elts) Thanx.

Here I am.My favourite is Oxygen.Come on! the reason is so obvious to all of us who's lives depend on it. I find it simple,nice,harmless. able & ready to intervene where life lacks. But it won't coz any harm if I also add that Hydrogen may take the place of the Queen in that kingdom. Together they make an unbreakable pair; enigmatic and challenging!...

It's good to stay optimistic about the future of man in space.But about the artificial gravity, it does not only depend on physics.The adaptation of the crew matters.For that reason we can't be sure of its success unless one has lived in. And if you were planning for a big crew (in case it works), the construction may be much espensive than it is worth.

True.You're right.

I read that astronomers hoped that the nuclear batteries& steering rockets of both probes will continue to work for 10years but that was long time ago. Voyager 2 passed near neptune in 1989 before it began to depart the solar system. I don't think it is still exploring the heliopause 21years after.

what about the magnetic field of the sun? does it also originate in its outer core? by the way i thought gravity originated from the inner core but is still influenced by the mass of the earth. You mean none of these is influenced by the movements of the planet neither internal( nuclear reactions...) nor external? Again,I appreciate your help responding to these qns.

For me space means every thing out there.solar system; other systems(if they are),universe and BEYOND. Thus I think space ends with our imagination since we can't go beyond and since we can't have limits within it. Note: I believe special cases may occur but it's hard to explain.I prefer simplicity.

Yes and no. Yes bcoz of its power and signal strength as said peviously But no bcoz still we dont know how is the medium beyond our solar sustem nor its bahaviour. there is no guarantee that it will still be able to transmit signals. I say that bcoz refering to voyager that were sent and are said to have flown beyond our solar system or the universe, we never received any more about them except the few images they got passing near some planets as they were flying away.

I am kind of puzzled about whether the earth magnetic force is related to gravity.Ok both forces pulls towards the center of the earth, but still... Thanx!

@insane_alien Thanx,i got it.Actually I was doing some probability problems (b4 i join this forum) which I still find not easy to figure out quickly.But now, dat's clear!

What?! more chemicals than atom! in that case there will be a bigger number of sets than elts inside.unless some sets are empty! any way are there chemicals without atoms?

Hey,I am called Tnad. Wow,I am happy to join the forum coz i believe i will get to know more.... I am crazy about Astronomy; am a physics fan and find math amazing.Neat subjects!!