Discover and read the best of Twitter Threads about #Nuclearfusion

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Someone asked me yesterday if the discovery nuclear fusion will mean we won't need degrowth anymore.
On the contrary, I think it underlines why degrowth is so important.
These 4 graphs show why. ImageImageImageImage
The short of it is, even if we invent a source of unlimited free energy, we are already crossing the boundaries of countless life support systems other than the carbon cycle.
In 2015, we had already crossed 3 planetary boundaries, including biodiversity.
Free energy won't solve that, we'll still need to transform and radically reduce our global material and energy use and destruction of ecosystems. In fact, it might speed it up.
#degrowth
#biodiversity
#nuclearfusion
Read 3 tweets
You're about to hear a lot about #NuclearFusion. I've followed the field for years & can offer context. Top line:
- NIF's "breakeven" does not generate more power than it consumes
- NIF is not a model for a commercial fusion reactor
- This news is a big deal all the same. 1/n Target positioners for the National Ignition Facility.
Fusion researchers measure fusion output in "Q," the ratio of power produced to power needed to maintain the fusion plasma. NIF has exceeded Q=1.
Breakeven, right? Er, the accounting is not so simple, as Charles Seife explains. 2/n theatlantic.com/technology/arcā€¦ #fusion #NIF
The power that goes into igniting a fusion pellet is much less than the total amount that NIF consumes. "Breakeven" comes nowhere close to covering all of that consumption! A useful fusion power plant would require anything from Q=5 to Q=100. 3/n
en.wikipedia.org/wiki/Fusion_enā€¦ #fusion Photo of the National Ignition Facility.
Read 9 tweets
Get excited... press conference from @ENERGY on fusion results from the US National Ignition Facility @lasers_llnl on Tuesday with a potentially HUGE #nuclearfusion announcement: FT reporting that NIF has hit scientific net energy gain!
on.ft.com/3PgDdya #TheStarBuilders
Rumours have been circulating that this is what happened but I understand no official confirmation as yetā€”but numbers might be as much as 120% of net energy gain.

If this is true, we are witnessing a moment of history: controlling the power source of the stars is the greatest..
technological challenge humanity has ever undertaken. Scientists have struggled to show that fusion can release more energy out than is put in since the 1950s, and the researchers at Lawrence Livermore seem to have finally and absolutely smashed this decades-old goal. This...
Read 4 tweets
Nuclear fusion is much closer than you think!

A short šŸ§µšŸ‘‡šŸ¾

(You can find pretty much everything in this thread in #thestarbuilders book: aeturrell.com/#writing)
First, what is nuclear fusion? It's a reaction that literally creates new atoms from old: lighter nuclei (say types of hydrogen) are smashed together to make heavier nucleiā€”and LOTS of energy. And the energy comes from an equation you already know! (Yes the one by Einstein) Schematic of nuclear fusion: small nuclei in, bigger nuclei
You should care about fusion: apart from being the reaction that makes the Universe light up (powering stars) and the reaction that created most of the elements we're made of, fusion promises clean, safe, low radioactivity energy for everyoneā€”and wow do we need more clean energy World energy consumption in exajoules broken down by energy
Read 20 tweets
"Attuning to natureā€™s rhythm has been associated with reduced neural activity in brain areas linked to risk for mental illness and inspired the attention restoration theory...nature replenishes our ability to concentrate and pay attention." @CuriousCortex greeneracresvaluenetwork.wordpress.com/2022/06/06/daiā€¦
How the Brain 'Constructs' the Outside World - Scientific American
scientificamerican.com/article/how-thā€¦
#neuroscience, #perception, #frameworks, #learning, #matching, #cognition
Read 13 tweets
Daily Bookmarks to GAVNetĀ 12/07/2021 greeneracresvaluenetwork.wordpress.com/2021/12/07/daiā€¦
Book checked out for 110 years returned to Boise Public Library

ktvb.com/article/news/lā€¦

#StrangerThanFiction #libraries
1431-1449: The Final Ecumenical Council - Two Churches, One Tradition

byzantineambassador.com/post/1431-1449ā€¦

#WesternTheology #pluralism #scholasticism #traditions
Read 13 tweets
#BREAKING #fusion #news: The National Ignition Facility (@LLnL) has reported a *twenty-five times* increase in energy released as compared to their 2018 world record for laser fusion: 1.3 MJ out for 1.92 MJ in, a 67.7% gain in energy!! šŸ¤Æ
llnl.gov/news/national-ā€¦

#TheStarBuilders
This is MASSIVE. Itā€™s so close to energy breakeven that itā€™s now almost inevitable that NIF will make history and be the first to hit 100%, showing that #fusion is not just a power source for the stars, but that it *could* work on Earth too. Here I am touring the NIF with Bruno: Arthur Turrell and Dr Bruno...
Iā€™ve long rated the chances of NIF of getting there 1st, simply because they have a machine thatā€”in principleā€”has the size and science to do it right now. (I give serious love & attention to this giant laser & the people behind it in #TheStarBuilders)

Read 7 tweets
#ITER #Kernfusion #Nuclearfusion
Michael Claessens
ITER: The Giant Fusion Reactor
Bringing a Sun to e
Earth
Fast einen Monat nach der Bestellung endlich erhalten. Gut Ding braucht Weile :-) Image
Wow-1g of deuterium-tritium produces, through #nuclearfusion, as much energy as the combustion of 8000 tonnes of oil!
Hear that, #Fridays4Future #Davos2020 !!
#nuclearfusion #tokamak #ITER
In 2003 the Tore Supra maintained a plasma pulse for 6min 30sec that produced 1billion Joules of energy-a world record among tokamaks that still stands today.
Read 13 tweets

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