Calgarypuck Forums - The Unofficial Calgary Flames Fan Community

Go Back   Calgarypuck Forums - The Unofficial Calgary Flames Fan Community > Main Forums > The Off Topic Forum

Reply
 
Thread Tools Search this Thread
Old 02-06-2012, 11:22 AM   #141
PIMking
Franchise Player
 
PIMking's Avatar
 
Join Date: Jan 2008
Location: Tampa, Florida
Exp:
Default

Quote:
Originally Posted by freedogger View Post
Even if it starts world war three?

“Iran is our neighbor,” Russia's outgoing ambassador to NATO, Dmitry Rogozin, told reporters in Brussels. “And if Iran is involved in any military action, it’s a direct threat to our security.”
This won't start ww3. Iran is tryin to flex its muscles and are being called on their bluffs.
__________________
Thank you for everything CP. Good memories and thankful for everything that has been done to help me out. I will no longer take part on these boards. Take care, Go Flames Go.
PIMking is offline   Reply With Quote
Old 02-06-2012, 11:38 AM   #142
RobotTalk
Farm Team Player
 
Join Date: Aug 2009
Exp:
Default

http://www.tomdispatch.com/post/1754...ng_glass/#more

An interesting article which tries to see things from the Iranian perspective. If you were in their shoes, sitting on one of the largest oil reserves in the world, having been subject to meddling of first the British then the Americans (including the overthrowing of a democratically elected Prime Minister and instillation of a brutal dictator), and were repeatedly threatened with regime change, wouldn't you want to develop nuclear weapons as well? I know that's not a popular viewpoint here but it's an interesting thought experiment nonetheless.
RobotTalk is offline   Reply With Quote
Old 02-06-2012, 12:13 PM   #143
CaptainCrunch
Norm!
 
CaptainCrunch's Avatar
 
Join Date: Jun 2002
Exp:
Default

That's great and I get what the article is trying to do, but the Iranian involvement in the world terrorism front has bought more attention onto them then anything else.

Most of the Nations in the world probably wouldn't mind seeing Iran squashed because of their use of these proxy groups makes them untrustworthy with Nuclear grad material.
__________________
My name is Ozymandias, King of Kings;

Look on my Works, ye Mighty, and despair!
CaptainCrunch is offline   Reply With Quote
Old 02-06-2012, 12:17 PM   #144
Gunkle
Scoring Winger
 
Gunkle's Avatar
 
Join Date: Oct 2006
Location: YYC
Exp:
Default

Quote:
Originally Posted by Flames Fan, Ph.D. View Post
I don't have expertise in the uranium issue as it is outside of my training. But your comment about phosphorescence is extremely ill-informed.
From our friends at Wiki - and the beat a dead horse. Tritum (that glowing stuff in your watch) is radioactive and does give off an isotope. It is also controlled material (it is used to make big bangs).

Physics

Tritium illumination is the use of gaseous tritium, a radioactive isotope of hydrogen, to create visible light. Tritium emits electrons through beta decay, and when they interact with a phosphor material, fluorescent light is created, a process called radioluminescence.
The tritium in a gaseous tritium light source undergoes beta decay, releasing electrons which cause the phosphor layer to fluoresce. Being an unstable isotope with a half-life of about 12.32 years, tritium loses half its brightness in that period.Legal issues

Because tritium in particular is an integral part of certain thermonuclear devices (though in quantities several thousand[citation needed] times larger than that in a keychain), consumer and safety devices containing tritium for use in the United States are subject to certain possession, resale, disposal, and use restrictions.
Gunkle is offline   Reply With Quote
Old 02-06-2012, 12:24 PM   #145
Flames Fan, Ph.D.
#1 Goaltender
 
Flames Fan, Ph.D.'s Avatar
 
Join Date: Mar 2006
Location: Underground
Exp:
Default

Quote:
Originally Posted by Gunkle View Post
From our friends at Wiki - and the beat a dead horse. Tritum (that glowing stuff in your watch) is radioactive and does give off an isotope. It is also controlled material (it is used to make big bangs).
Again, tritium is not the glowing stuff. Tritium is not phosphorescent.

The wiki article is correct as is; your first addendum in parentheses is not.
Flames Fan, Ph.D. is offline   Reply With Quote
Old 02-06-2012, 12:28 PM   #146
freedogger
Scoring Winger
 
freedogger's Avatar
 
Join Date: Jan 2011
Exp:
Default

Quote:
Originally Posted by PIMking View Post
This won't start ww3. Iran is tryin to flex its muscles and are being called on their bluffs.
Hope not, sure suck if wrong...
freedogger is offline   Reply With Quote
Old 02-06-2012, 12:28 PM   #147
Gunkle
Scoring Winger
 
Gunkle's Avatar
 
Join Date: Oct 2006
Location: YYC
Exp:
Default

Quote:
Originally Posted by Flames Fan, Ph.D. View Post
Again, tritium is not the glowing stuff. Tritium is not phosphorescent.

The wiki article is correct as is; your first addendum in parentheses is not.
If you agree with the wiki quote, they are the ones that say "Being an unstable isotope with a half-life of about 12.32 years, tritium loses half its brightness in that period". It is understood that there are two elements here - creating radio-luminescence. The 'glowing' of the watch is credited to the presence of the tritium, and not the other way around.
Gunkle is offline   Reply With Quote
Old 02-06-2012, 12:29 PM   #148
ernie
Franchise Player
 
Join Date: Oct 2004
Exp:
Default

As an aside the US government no longer actively manufactures tritium. Instead they rely on harvesting from older weapons and existing stock.

As a result the US government also no longer makes helium-3 (the byproduct of the decay) which is becoming a rather large problem. Helium-3 is used as a neutron abosorber and fins use in every thing from oil and gas exploration to medical imaging. Everyone is needing to switch to different materials.


on the above: tritium is releasing electrons (and helium-3) which then react with a phosphor which then undergoes phosphoresence. The "brightness" has to do with the fact that as tritium decays less and less electrons are released as there is less and less tritium which in turn decreases the amount phosphoresence observed. (unless you continually replace the tritium to keep the concentration the same at all times which is not the case in these devices). Any electron source would cause the glowing provided the phosphor is present. Tritium is the electron source so yes it is required for the system to work but it isn't the glow.

Last edited by ernie; 02-06-2012 at 12:35 PM.
ernie is offline   Reply With Quote
The Following User Says Thank You to ernie For This Useful Post:
Old 02-06-2012, 12:38 PM   #149
Gunkle
Scoring Winger
 
Gunkle's Avatar
 
Join Date: Oct 2006
Location: YYC
Exp:
Default

Quote:
Originally Posted by PIMking View Post
This won't start ww3. Iran is tryin to flex its muscles and are being called on their bluffs.
What really sucks about this, is that countries are acting more like business than responsible agents that are mandated to protect their citizens from physical catastrophes.

Iran has been in the middle of a tug of war game between the West and the East for a long while. There are some that want to over throw this regime (perhaps under the auspices of security) to gain access and contracts to the oil and gas fields. There are others that are playing the middle ground to enhance their own opportunities by doing nothing (China / France / Russia).

Putting these games aside, this game is very unerving to the rest of us. Nuclear states have the ultimate bargaining chip. Iran may be developing this capacity to become a regional power - especially in lieu of its declining historical, and Sunni, rival - Iran.

Israel has them (come on, we know you do), India and Pakistan do as well.

This isn't a game that you can lose, and then reset and play again. This is reality, and you have to take the Iranian regime at its word. They're here to kill us. Why sit around and debate their sincerity. No one should be allowed to bully another with that type of rhetoric.

I fear that we may have lost our window of opportunity. If they don't have heavily enriched / weaponized plutonium - they have the material to weaponize a dirty, or yellow bomb.

Hate to sound like a war monger.... but this could go sideways.
Gunkle is offline   Reply With Quote
Old 02-06-2012, 12:46 PM   #150
mikey_the_redneck
Lifetime Suspension
 
Join Date: Sep 2005
Location: Lethbridge
Exp:
Default

Quote:
Originally Posted by Gunkle View Post
This isn't a game that you can lose, and then reset and play again. This is reality, and you have to take the Iranian regime at its word. They're here to kill us. Why sit around and debate their sincerity. No one should be allowed to bully another with that type of rhetoric.

Hate to sound like a war monger.... but this could go sideways.
LOL.....

You keep repeating that Iran wants to "kill us".

Who is "us"?
The whole western world?

How are they going to pull that off?
What precedent has Iran set for these curcumstances?

You're falling for empty rhetoric/sabre rattling.
mikey_the_redneck is offline   Reply With Quote
The Following User Says Thank You to mikey_the_redneck For This Useful Post:
Old 02-06-2012, 01:13 PM   #151
Flames Fan, Ph.D.
#1 Goaltender
 
Flames Fan, Ph.D.'s Avatar
 
Join Date: Mar 2006
Location: Underground
Exp:
Default

Quote:
Originally Posted by Gunkle View Post
If you agree with the wiki quote, they are the ones that say "Being an unstable isotope with a half-life of about 12.32 years, tritium loses half its brightness in that period". It is understood that there are two elements here - creating radio-luminescence. The 'glowing' of the watch is credited to the presence of the tritium, and not the other way around.
Unfortunately you haven't grasped what phosphorescence is.

You need a phosphorescent compound for phosphorescence, which is the light you see emitted. That compound usually has a higher energy / excitable state so that the release of that energy can be seen as light; in the case you're referring to, tritium is used as the source of energy to excite the phosphorescent compound. Tritium itself does not "glow." You're conflating two separate entities. The wiki explains it well, but I suspect there is a science gap here that's creating confusion.

If tritium were phosphorescent, then i'd have to find a way to jimmy our laboratory fluorimetre to figure out a way to measure tritium. But we don't. When we label proteins with tritium, we use the scintillation counter as it is a radioactive compound.

===

Edit: didn't read ahead before i typed all this, but ernie explained it well
Flames Fan, Ph.D. is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 09:53 AM.

Calgary Flames
2024-25




Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright Calgarypuck 2021 | See Our Privacy Policy