# Homework Help: What's in the center (at r=0) of the sun?

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1. Apr 25, 2015

### elif

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution
I read about sun.in the core there is fusion.neutrinos...etc.but i dont have a full idea.thanks for your helps.

2. Apr 25, 2015

### Simon Bridge

Welcome to PF;
The idea of the exercise is not to provide full info but to write about your understanding in terms of the coursework you have just done.
Since none of us were present in your classroom, we cannot advise you better than to read around some more. We may be able to help you with references, however, the internal structure of the Sun is quite a big topic - you can help narrow it down. What education level is this supposed to be completed at?

3. Apr 25, 2015

### elif

The year is 5201. A millennium and half year ago, CBPC
(Collaborative Brain Powered Computing) has been initiated and now
it has been used in many ways through out the Earthling society.

In one of the latest usage more than 3 billion (70% of world
population!) humans connected their brain to calculate Near Earth
Objects (asteroids that can pass too close to Earth orbit) of next
millennium. The experiment found 73 such asteroids and EFS
(Earthling Federation of Sun) successfully diverted them to Sun.

The next experiment will use "WHOLE POPULATION" to create a model
of the Sun up to the radius r=0.000 000 000 000 000 m.

What do you think they will find at the very center of the Sun?

Hint:
[1] Remember to question everything!
[2] Einstein: We can't solve problems by using the same kind
of thinking we used when we created them.
[3] Observables are the limits of our perception.
This is What he gives us.I read the about the sun core in order to have an idea.I can collect that information but i couldnt answer his question. I think he ask them give a suggestion. Thank you

4. Apr 25, 2015

### Simon Bridge

Basically my reply is unchanged by the new information.

What education level is this supposed to be completed at?

There's quite a lot left to tell us:
There are 3 important hints - what happens when you apply them to the description?
i.e. hint 1: question everything. Did you? What did you come up with?

You should be relating the question to your course so far. What have you been studying in class over the last week or so?

5. Apr 25, 2015

### Staff: Mentor

It is well-known how the center of sun looks like, and you can find the answers in textbooks of 2015. No need to wait another 3186 years.

6. Apr 25, 2015

### Simon Bridge

@mfb: But maybe the question is not about what is actually in the center of the Sun ... the question is asking about what the SF brain network would find.
Probably nothing useful if it's performance on counting NEOs is anything to go by.

The hints would seem to back this up.

I wonder if one possible answer is that the brain-net will think there are asteroids inside the Sun? After all - the EFS diverted 73 of them there.

This is why I want to know the education level and the topic of recent lessons.
Maybe they have been studying the structure of the Sun and the rest of the SF story is so much rubeum allec.

Hah! Allec Rubeum could be someone's name - whoever he is, he'd be a greatly diverting speaker. I wonder if... <wanders off...>

7. Apr 25, 2015

### Staff: Mentor

I hope it finds what is actually there. Otherwise we should move the thread to the science fiction section.

Which is pointless on its own.

@elif: which kind of course is that? Physics or something about writing?

8. Apr 25, 2015

### Simon Bridge

Oh but it's "homework", says elif, so it belongs in some sort of homework section .... evaluating what a particular model would find, even if that is incorrect in fact, is still science. Also, some people try to teach critical inquiry in science classes ... it's a thing. Sometimes they use fictional examples to test a students ability... it's just got my spidey senses tingling as that sort of problem.
Mind you - it is blurring the lines quite a bit here.

I think if the question amounts to "what is at the center of the Sun?" the answer won't make much of an essay.

9. Apr 25, 2015

### elif

Its an introduction to astrophysics course.We studied the sun.I mean its layer ,how we know about its interior..etc.I know how the center of sun looks like.I asked instructor.the question is not about what the SF brain network would find.He said that the question is What do you think they will find at the very center of the Sun?.I'm confused about that topic

10. Apr 25, 2015

### Drakkith

Staff Emeritus
You said you studied the Sun and learned about its interior. Based off of that information, what is at the center of the Sun? It sounds to me like your instructor just wants you to regurgitate your knowledge in essay form.

11. Apr 25, 2015

### elif

then why he said that we are in 5201? he ask from us to think about the future

12. Apr 25, 2015

### Drakkith

Staff Emeritus
Yes, I actually deleted my post, but it appears I was too slow and you had already seen it. Guess I'll just undelete it.

Honestly, after re-reading the scenario, I can't begin to fathom why your instructor chose such a ridiculous example.

13. Apr 25, 2015

### elif

İf I understand what he wants from me I can find some ideas.I dont know what we dont know about the suns center

14. Apr 25, 2015

### Drakkith

Staff Emeritus
Yes, I've encountered the same issue in school myself. I don't see any other way of going about this other than by getting clarification from your instructor on what exactly they are asking. In the meantime you could start your essay by explaining what we do know about the Sun's core.

15. Apr 25, 2015

### elif

16. Apr 25, 2015

### Staff: Mentor

I would hope not, at least not intact asteroids...

17. Apr 26, 2015

### Simon Bridge

... so disregard everything else and answer the question.
Try to figure out how the hints factor in.

Well... compared with the brain-net's counting of NEO's... maybe it will just count a correspondingly lower density in the solar core (we can expect the same reasoning to lead to the same problems a la hint #2)? Fortunately we are informed that the exercise is not to second-guess the brain net. That makes pretty much all the description superfluous. I wonder how many students with this assignment are similarly confused?