First person to properly identify the significance of this value will have a mediocre chocolate-chip cookie delivered, within a reasonable distance, to him or her by yours, truly, at my earliest convenience

7/21/2011 5:17:58 AM

it's a reference value to measure certain nuclear cross sections

7/21/2011 5:25:58 AM

You're either entirely wrong or you're gonna have to be more specific...lookin for a key word or two here

7/21/2011 5:27:34 AM

A neutron with an energy of 0.0253 eV is used as reference to measure nuclear cross sections such as absorption, fission, scattering, etc.

This is the energy when a neutron is considered to be a "thermal" neutron.

[Edited on July 21, 2011 at 5:36 AM. Reason : Gimme my cookie bitchtits]

7/21/2011 5:34:19 AM

I was going to say, if i remember right from a nuclear physics class, and the previous posts.... there's a standardized energy at whiccross sections are determined, and you can calculate what a cross section would be at other energies using this reference point... right?

7/21/2011 5:38:28 AM

those answers are inadequate. anybody could google and get that answer.

question is, why THAT standardized value?

[Edited on July 21, 2011 at 5:43 AM. Reason : ]

7/21/2011 5:40:08 AM

^^^The second sentence was what I was looking for

Good job, that happened in way less posts than I had anticipated. I will get up with you tomorrow for delivery details. Next challenge coming soon

^ perhaps that was made too easy to google search. I will try to make the next one more difficult

7/21/2011 5:41:30 AM

Because you're a moron

[Edited on July 21, 2011 at 5:42 AM. Reason : oepshit]

[Edited on July 21, 2011 at 5:51 AM. Reason : .greg hy3r]

7/21/2011 5:41:43 AM

sorry if you are inadequate

[Edited on July 21, 2011 at 5:44 AM. Reason : fuck_it]

7/21/2011 5:44:09 AM

Quote :

"those answers, even the OP, are inadequate. anybody could google and get that answer. question is, why THAT standardized value? "

He asked the "significance of this value" so I told him. It was adequate enough to get me a cookie.

Don't be jealous I won a cookie and you didn't.

[Edited on July 21, 2011 at 5:45 AM. Reason : douche]

7/21/2011 5:45:25 AM

Seriously, youre the worst poster on this website.

7/21/2011 5:45:34 AM

ooooohhh snap!

7/21/2011 5:46:37 AM

Meh, its not the first time he's been told that. The oh snap value is lost after the three thousandth time.

7/21/2011 5:50:37 AM

eh "significance of this value" could mean either way... but nah, enjoy your cookie, i don't want any cookie.

anyway, so i want to know why it is that value... where does that number come from?

7/21/2011 5:57:14 AM

I get it... but it's just not funny.

7/21/2011 6:44:32 AM

What's the significance of:

Quote :

"1.21 JIGA WATTS"

7/21/2011 6:48:34 AM

the flux capacity starts...fluxing

7/21/2011 8:37:06 AM

I like this idea.
Can we have more trivia for cookies?

7/21/2011 10:04:58 AM

New challenge/mediocre chocolate chip cookie to come soon

7/21/2011 11:34:05 AM

PICK SOMETHING I WOULD KNOW

7/21/2011 11:38:25 AM

pick something that you can't just look up on wikipedia

7/21/2011 11:47:11 AM

oh and to OEPII - Just a quick synopsis: when neutrons are produced in a reactor from fission events they are hauling ass at pretty high energies, on the order of hudreds of keV up to a couple MeV. After banging around in the matrix for a while they lose their energy to the environment and are considered "thermalized" when they slow to a speed corresponding to the baseline energy around room temperature (i don't remember the exact value but it's in the 60-degF range). They're still moving at about 2200 m/s which corresponds to an energy of 0.0253 eV. This is, of course, a statistical value representing the most probable energy of any given thermal neutron and it is the energy about which a fissile uranium nucleus absorbs the nuetron

7/21/2011 12:05:00 PM

I think you got trolled. Didn't you know opeieeknows everything?

7/21/2011 12:34:18 PM

NEW CHALLENGE: what is the significance of - F D Bb D F Bb

7/21/2011 12:36:55 PM

google told me pretty quickly, but i ain't gonna act like i actually knew

7/21/2011 12:42:48 PM

Bach Professional Bb/F Tenor Trombones

7/21/2011 12:44:06 PM

First six notes of the Star Spangled Banner

7/21/2011 12:46:31 PM

^ yep


damn i need to make these a little more difficult...seems to be a fine line though, if i make it so someone can eventually figure it out they will do so pretty quickly. if i make it more obscure than that noone ever will get it

7/21/2011 12:54:26 PM

WHERE'S MY COOKIE SON

7/21/2011 12:56:26 PM

PM sent asshole

7/21/2011 1:05:42 PM

7/21/2011 1:51:21 PM

thanks paerabol for the explanation!

7/21/2011 2:03:24 PM

nuclear engineering sounds boring as fuck

i'm glad i didn't major in that kind of boring ass engineering

7/21/2011 4:18:02 PM

epithermal neutron absorption peak.

7/21/2011 5:34:53 PM

^^ to each his own. I have half a major in both electrical and mechanical because i thought the same thing about them...nuclear engineering is freakin mindblowing

7/21/2011 5:46:04 PM

Seeing some of the things in an actual power plant is mind blowing.

Have you ever been in containment?

Have you ever been in containment on weed?

7/21/2011 6:15:25 PM

Quote :

"nuclear engineering sounds boring as fuck i'm glad i didn't major in that kind of boring ass engineering"

You have no fucking idea what you're talking about.

I mean really, give me an engineering to compare it to. The pwnage will come like an electron from a free neutron decay.

Quote :

"Have you ever been in containment on weed?"

lol, and I certainly hope you have not either

7/21/2011 6:20:24 PM

how would anyone know this shit?

if you want to be physics crazy with a constant

why not go with

-13.6 eV

or 1/137

I mean, fuck... come on.

7/21/2011 7:51:47 PM

it's a constant that would mostly be known by nuclear engineering/physics people. You deal with that damn number A LOT

7/21/2011 7:55:14 PM

I am a physics person, and I've never seen that number...

maybe I ran across it when I took nuclear, that one time...

pfff

you do know that most physics and engineering people at State do solid state physics of one kind or another?

[Edited on July 21, 2011 at 7:57 PM. Reason : ...]

7/21/2011 7:57:05 PM

Quote :

"You have no fucking idea what you're talking about. I mean really, give me an engineering to compare it to. The pwnage will come like an electron from a free neutron decay."

You're right. I don't. I was fucking with you, and you got fucked with. Tool.

7/21/2011 7:59:44 PM

wait a minute

oh....

that's 1/40 eV... yeah that's the energy due to room temperature

btw, my professor calls it 25 meV

[Edited on July 21, 2011 at 8:04 PM. Reason : .]

7/21/2011 8:01:38 PM

Lol, I remember 1/137.

Cherenkov radiation is my fucking favorite. Its so goddamn beautiful.

7/21/2011 8:05:10 PM

math is not beautiful. yo momma is beautiful, math is neat.

7/21/2011 8:35:47 PM

Lol, I wasn't talking about the math behind it. I mean looking at the blue glow from it is mesmerizing.

[Edited on July 21, 2011 at 8:37 PM. Reason : sp]

7/21/2011 8:36:45 PM

mezmorizing

7/21/2011 8:37:30 PM

looks like 0EPII1 is still a really fun and interesting guy

7/21/2011 8:39:57 PM

^^I was already fixing it while you posted. You're still a fucking cunt.

[Edited on July 21, 2011 at 8:40 PM. Reason : .]

7/21/2011 8:40:19 PM

7/21/2011 8:40:28 PM

you nuclear engineers are so uptight

instead of learning about nuclear engineering, why don't you focus your mathematical brains on reducing your inner bitch?

7/21/2011 9:17:00 PM