PowerSwitch Main Page
PowerSwitch
The UK's Peak Oil Discussion Forum & Community
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Scientists Produce Unprecedented 1 Megajoule Laser Shot

 
Post new topic   Reply to topic    PowerSwitch Forum Index -> Nuclear Power
View previous topic :: View next topic  
Author Message
RogueMale



Joined: 03 Jan 2010
Posts: 328
Location: London

PostPosted: Fri Jan 29, 2010 1:08 pm    Post subject: Scientists Produce Unprecedented 1 Megajoule Laser Shot Reply with quote

I haven't had a chance to study this in detail, but it looks like a major advance towards controlled nuclear fusion.

http://www.physorg.com/news183879299.html
Back to top
View user's profile Send private message
kenneal - lagger
Site Admin


Joined: 20 Sep 2006
Posts: 9822
Location: Newbury, Berkshire

PostPosted: Sat Jan 30, 2010 2:47 am    Post subject: Reply with quote

Watching the film you can't help but wonder where the catch is in this smooth presentation. And what will man do with this unlimited power and how will it effect our environment? Am I the only one to wonder if the introduction of unlimited power into the earth's atmosphere will cause its own global warming problem?
_________________
"When the last tree is cut down, and the last river has been poisoned, and the last fish has been caught, Only then will you find out that you cannot eat money". --The Cree Indians
Back to top
View user's profile Send private message Send e-mail Visit poster's website
RogueMale



Joined: 03 Jan 2010
Posts: 328
Location: London

PostPosted: Sat Jan 30, 2010 11:52 pm    Post subject: Reply with quote

kenneal wrote:
Watching the film you can't help but wonder where the catch is in this smooth presentation. And what will man do with this unlimited power and how will it effect our environment? Am I the only one to wonder if the introduction of unlimited power into the earth's atmosphere will cause its own global warming problem?


The energy generated will eventually degrade to heat, but this will, I think, eventually radiate into space. No CO2 will be produced, though, so it won't make the earth's atmosphere any more of a greenhouse than it is already.

The two issues are (a) will nuclear fusion be ready before we run out of affordable energy from fossil fuels, and (b) might it mean that people's lifestyles will become even more extravagant, causing us to run into other, equally serious problems? One reason to be optimistic about (a) is that the prototype fusion reactor will be in France, most of whose energy comes from fission, so is less susceptible to peak oil.
Back to top
View user's profile Send private message
Grizzly Mouse



Joined: 24 Mar 2008
Posts: 73
Location: Bristol

PostPosted: Sun Jan 31, 2010 2:49 pm    Post subject: Reply with quote

Laser fusion or Tokamaks are very large and expensive. Some of the smaller programs like Focus Fusion or Polly well seem more promising, or that might just be because everything looks promising until you find out how hard it is. But if one of those panned out it could give you enough energy to be free of fossil fuels and mine the asteroid belt to build all the batteries you would need. Enough energy to desalinate water and irrigate all the deserts.

Of course if such a development like that does allow the industrial age to continue much longer eventually within a few decades it will lead to this:
Back to top
View user's profile Send private message Send e-mail
Aurora



Joined: 24 Jan 2007
Posts: 8502

PostPosted: Tue Feb 02, 2010 9:28 am    Post subject: Reply with quote

Back to top
View user's profile Send private message
RenewableCandy



Joined: 12 Sep 2007
Posts: 12469
Location: York

PostPosted: Tue Feb 02, 2010 12:11 pm    Post subject: Reply with quote

I think what Ken was talking about was more mineral extraction (other than coal and oil), more pollution (other than CO_2), more fishing, more soil erosion, more chucking native people out of their forests (because we want more soap and more garden furniture), etc. All of this is enabled by more energy. Sadly more energy doesn't make us, collectively, much cleverer Sad
_________________
Soyez réaliste. Demandez l'impossible.
The Price of Time
BLOG
Back to top
View user's profile Send private message
kenneal - lagger
Site Admin


Joined: 20 Sep 2006
Posts: 9822
Location: Newbury, Berkshire

PostPosted: Tue Feb 02, 2010 8:47 pm    Post subject: Reply with quote

RenewableCandy wrote:
I think what Ken was talking about was more mineral extraction (other than coal and oil), more pollution (other than CO_2), more fishing, more soil erosion, more chucking native people out of their forests (because we want more soap and more garden furniture), etc. All of this is enabled by more energy. Sadly more energy doesn't make us, collectively, much cleverer Sad


Plus high rise buildings everywhere; high rise hydroponic food production; every building air conditioned 24/7; electrically powered tar sand and shale extraction to keep millions more cars on the road; billions more people enabled by this new power source and the food it would provide.

And no place for the natural world. Because we will all be too busy growing the population and making money to spend on the myriad electrical gadgets that will be on sale to keep growth going, until the earth wears out.
_________________
"When the last tree is cut down, and the last river has been poisoned, and the last fish has been caught, Only then will you find out that you cannot eat money". --The Cree Indians
Back to top
View user's profile Send private message Send e-mail Visit poster's website
fifthcolumn



Joined: 22 Nov 2007
Posts: 2525

PostPosted: Wed Feb 17, 2010 12:32 am    Post subject: Reply with quote

kenneal wrote:
And what will man do with this unlimited power and how will it effect our environment? Am I the only one to wonder if the introduction of unlimited power into the earth's atmosphere will cause its own global warming problem?


Faced with one of two choices ken, which would you pick:
a. Stop the majority of the world's population from getting product rich and ecosystem poor by preventing growth in energy supplies of any kind thus initiating a HUMAN dieoff
OR
b. Simplify and degrade the world's ecosystems and cause mass animal death but at the same time, sustain a large human population while putting more and more of the world's natural systems under our control.
Back to top
View user's profile Send private message
kenneal - lagger
Site Admin


Joined: 20 Sep 2006
Posts: 9822
Location: Newbury, Berkshire

PostPosted: Wed Feb 17, 2010 12:47 am    Post subject: Reply with quote

fifthcolumn wrote:
sustain a large human population while putting more and more of the world's natural systems under our control.


You need a shrink, mate, if you seriously believe that! Shocked
_________________
"When the last tree is cut down, and the last river has been poisoned, and the last fish has been caught, Only then will you find out that you cannot eat money". --The Cree Indians
Back to top
View user's profile Send private message Send e-mail Visit poster's website
fifthcolumn



Joined: 22 Nov 2007
Posts: 2525

PostPosted: Wed Feb 17, 2010 12:54 am    Post subject: Reply with quote

kenneal wrote:

You need a shrink, mate, if you seriously believe that! Shocked


So you've chosen the first choice.
No surprise there.
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    PowerSwitch Forum Index -> Nuclear Power All times are GMT + 1 Hour
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group