Tnad

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!

Hydrogen!

 

It's the basis of all known life if it were not for hydrogen we would not have our sun.

allow me to add also that through fusion it gives birth to Helium, a noble gas by excellence just like any other prince!

We would not have water.

 

We would not have life.

 

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.

Mercury, for obvious reasons.

 

I'm surprised no mentioned oxygen...

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.

the voyager missions are still on going. they haven't transmitted anymore pictures because there was nothing to look at. the voyager missions are expected to continue until 2020 and all intstruments will need to be shut down in 2025 due to a lack of power.

 

they are still providing valuable information about the heliopause .

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!!