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Nuclear fusion milestone passed at US lab

nuclear fusion us lab milestone passed sustainable energy radiation self-sustaining

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#16 Torolol

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Posted 08 October 2013 - 05:50

yeah the H-Bomb is more ancient than Windows OS




#17 Shiranui

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Posted 08 October 2013 - 06:04

What's this? Has NIF achieved "ignition" at last? Haven't been following their progress recently.



#18 +Nik L

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Posted 08 October 2013 - 06:07

The Nokia Lumia 1020 is a smartphone with a 41MP camera. Somehow, I doubt that war was the driving force for this technological advancement.

 

I disagree, there will be many components that will have received some form of development or advancement due to military need.  Yes demand pushes invention, but the military demand is a very strong and catered for factor.



#19 DocM

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Posted 08 October 2013 - 07:13

What's this? Has NIF achieved "ignition" at last? Haven't been following their progress recently.


It's not true, sustained, ignition but it's a major step in that direction. Showtime comes when the extracted power increases and the fuel pellet feed and laser systems allow it to do shots continuously. All do-able IMO.

#20 Shiranui

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Posted 08 October 2013 - 07:23

Nuclear fusion is one of the few remaining things that actually excites me.

Haven't been following what's been going on a ITER either. Perhaps the lack of news is a bad sign.



#21 DocM

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Posted 08 October 2013 - 07:44

ITER is still under construction. $13 billion and counting.

http://prismmn.com/f...nuclear-fusion/

#22 blerk

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Posted 08 October 2013 - 07:45

Very cool. Baby steps, but still very cool

 

And since the thread is semi-discussing budgets and the military, I do sometimes wish that NASA was under the DoD's control - so that its budget could grow quite a bit. Nothing stimulates the U.S. Congress quite like "National Defense" (and silly little bills honouring random people).

 

And ITER is still being built, IIRC it should be finished about 2019-2020 so I wouldn't expect any news until 2020...unless it blows its budget massively and becomes news, or another reason along those lines...



#23 DocM

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Posted 08 October 2013 - 07:55

NASA, the University of Washington and fusion research company MSNW (http://msnwllc.com) are working on a fusion rocket for long space missions, and the work so far is looking good. It works bit like NIF in that it uses inertial fusion, replacing the pellets with metal cylinders that are radially compressed with the fusion products being expelled through a nozzle.

#24 Radium

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Posted 12 October 2013 - 23:55

Once we have nuclear fusion, the military will get to increase spending on nuclear fusion weapons!

Ivy Mike from 1952 called and asked if you're joking!

 

The fusion power research results will not make a dent in nuclear bomb technology in any foreseeable future. They learned enough from Castle Bravo to know how to get good enough hydrogen bombs, aka fusion bombs.

Nuclear bombs aren't practical today.



#25 DocM

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Posted 13 October 2013 - 00:14

Well, they are practical in a way - nuclear fission "bombs" are the trigger device for fusion (hydrogen) bombs. Fission bomb goes off first, and its gamma and neutron flux sets off the fusion secondary.

#26 thomastmc

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Posted 13 October 2013 - 00:48

On the point of advancement:

 

Advancement doesn't come through war, advancement comes through scientific research and funding...

 

War is the primary motivation for scientific research and funding during war and while preparing for it, but it's only the motivation.

 

The space race created as much or more technological innovation as WWII. Absolutely by far more if you don't count nuclear fission. Almost all of the technology we use today owes it's existence in it's current form and/or level of advancement to the Apollo program. That wasn't about war, but instead honor and pride in ability, competence, ingenuity, and execution.

 

If we shifted 50-75% of the funding from defense solely to scientific research, we would see exponentially more technological and scientific advancement. We just wouldn't have as many tanks, bullets, carriers, destroyers, F-22s, C-130s, cruise missiles, etc..



#27 DocM

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Posted 13 October 2013 - 01:12

For the record, defense spending as a percent of GDP (measured using outlays rather than budget authority) was 4.7% in the FY 2012 budget request, below the post-World War II average of 6.3%. This year under the sequester it's down another 10%, and a sizeable portion of it is salaries, veterans benefits, retirements, active duty benefits and maintenance. It will continue to shrink for the next decade unless someone starts a fight. The military also cintributes a lot to basic and biomedical research, especially prosthetics, wound and trauma treatment, through DARPA.



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