Geology

[equalsmcsquared.livejournal.com]

*She is remarkably cheerful for someone who had spent the better part of last week testifying over a rather grisly set of murders, complete with suspected cannibalism.*

I trust you all remembered the papers I assigned. Please stack them next to the roll sheet as you sign in. There are coffee and doughnuts if anyone wants them.

Today, we will be discussing the Earth's magnetic field and how it relates to geology.

The geomagnetic field is generated by electric currents located in many different parts of the Earth. In the outer core the main part of the geomagnetic field is sustained by a naturally occurring dynamo. In the mantle currents can be induced by time-dependent variations in the ambient magnetic field. In the crust the field has both induced and permanent components.

And, in the ionosphere and magnetosphere electric currents are sustained through a complicated interaction with the Sun, the heliomagnetic field, and the solar wind of charged particles. The many different, and sometimes remote, sources of the Earth's magnetic field each contribute to the total field at any one particular location, with the very different physical processes in each domain giving rise to a wide variety of time-dependent geomagnetic variations.

Comments

[sensethevisions]

Phoebe, smiles faintly at Sara and signs in. She hands in her paper and gets to work on the assignment. She really does look like a puppy who has been kicked today.

[chasingangela]

After handing in her paper, Angela takes a seat next to Phoebe and shoots her a sympathetic smile. "Let me know if you want to talk," she whispers.

[sensethevisions]

Phoebe smiles gratefully at Angela. "Yeah, I'd like to," she whispers back.

[chasingangela]

"Are you okay? I heard some bad stuff was going on with Paige."

[sensethevisions]

"Paige...Maia...classes...you name it, my life hates me," she whispers softly.

[chasingangela]

Angela winces. "I'm sorry. I broke up with Marty last week, so ... I think life hates me too."

[sensethevisions]

Phoebe winces in sympathy. "I wanted to say something supportive that doesn't sound lame...but I like you too much to just use any words." She smiles. "You need to talk, I'm a good listener."

[chasingangela]

"It's okay. We're ... trying to be friends," Angela whispers. "Maybe it's for the best, y'know?" She doesn't sound as though she believes this. "What's going on with you and -- do you call him Cole or Belthazor?"

[pure-blooddraco.livejournal.com]

Draco signs in and hands in his paper. He sits in his chair and begins to do the assignment.

[auroryborealis.livejournal.com]

Rory signs in and settles by Draco, also starting the assignment.

She's tempted to use that nifty pen thingy he got her, but decides she'd rather do a little more test-work with it before showing off in public.

[pure-blooddraco.livejournal.com]

Draco looks over at Rory. He's not as nervous around her after spending the last few nights with Lily. And the whole 'he's got a girlfriend' thing is making him in a better mood than usual.

"Hey Rory." he says

[auroryborealis.livejournal.com]

"Hey, Draco. How're you?" Rory asks. She looks slightly more worried than usual, but is making a valiant attempt at staying cheery.

[pure-blooddraco.livejournal.com]

"Good. How's your boyfriend? Still a rabbit?" he asks

[auroryborealis.livejournal.com]

"Nope," Rory says with a slight smile. "Changed back yesterday. Which is good."

[12parseckessel.livejournal.com]

Han signs in and turns in the paper.

[alchemy-4-arson.livejournal.com]

Roy hands in his paper, finds a seat next to his lab partner, and starts listening to the lecture with more interest than he usually displays.

[12parseckessel.livejournal.com]

"Hey Roy. Missed seeing you around."

[alchemy-4-arson.livejournal.com]

"Sorry for that. I've been kind of absent-minded in the last two weeks."

[bridge-carson.livejournal.com]

Bridge bounces in, signs the attendance sheet, and hands in his paper.

[aroseintime.livejournal.com]

Rose wanders into class, signs in and turns in her paper. She waits for lab partner before starting the assignment.

[miss-thomasina.livejournal.com]

Thomasina arrives for her geology just a little while later. She places her neatly written paper on top of the stack and goes to join Rose at their lab table. Hello, Rose. Have you had a pleasant week?

[leeadama.livejournal.com]

Lee comes in to class early, for once, and signs in and hands in his paper. He smiles widely at Ms. Sidle and says, "Good to have you back, professor" before sliding into his seat.

[alchemic-bean.livejournal.com]

Edward straggles in, drops his paper on the stack and finds a seat.

[conathon.livejournal.com]

Sawyer takes a seat after handing in his paper to Sara.

[teen-twin.livejournal.com]

Connor hands in his paper, grabs a cup of coffee, and akes a seat to listen to the lecture.

After Class

[carter-i-am.livejournal.com]

Sam shouldered her messenger bag and stood in the doorway to the classroom. "Excuse me, Professor Sidle?"

Re: After Class

[equalsmcsquared.livejournal.com]

Yes, Sam? *glancing up from her papers* What can I do for you?

Re: After Class

[carter-i-am.livejournal.com]

Sam approached the desk. "I'd actually like to speak to you about dropping Physics."

Re: After Class

[equalsmcsquared.livejournal.com]

I'll be sorry to lose you, but if you think that will be best I will withdraw you. *smiles*

Re: After Class

[carter-i-am.livejournal.com]

"Thank you, Professor. I really appreciate this." Sam sighed with relief. "And would you please write me a note, in case it comes up later, so no one thinks I just stopped showing up?"

Re: After Class

[equalsmcsquared.livejournal.com]

I will make note of it, Sam and I will mention it briefly in this week's class. *smiles*

Re: After Class

[carter-i-am.livejournal.com]

Sam fidgets a little. "Thank you. Would you also..um, would you please also mention it to The Doctor? Because he wanted proof before he'd agree to let me into his Quantum Physics class, to make sure there wouldn't be any problems later."

Re: After Class

[equalsmcsquared.livejournal.com]

Certainly.

Re: After Class

[carter-i-am.livejournal.com]

"Thank you again, Professor Sidle. Very much."