JATtho

arxiv.org: a pre-print source, this is not peer-reviewed yet. So, until other papers refer to this paper, it has low significance in the literature. The paper has references to other papers and to previous corpus of knowledge on the subject, which is good. However, this paper is based on simulations only.

Crucially, the scheme identified here does not negatively impact electricity production, and is also compatible with the challenging tritium breeding requirements of fusion power plant design because (n, 2n) reactions of 198Hg drive both transmutation and neutron multiplication

Monte Carlo transport calculations show that neutrons produced in a tokamak power plant can convert the abundant isotope 198Hg to stable 197Au via the (n,2n) channel, yielding several tonnes of gold per plant-year without compromising the tritium breeding ratio.

The decommissioned blanket material would increase in value, and the Mercury-198 in the blanket doesn't majorly impact its effectiveness in transmuting lithium to tritium.

The "worst" gold isotope half-life is less than a year, so only a modest cool-down is needed for the output:

197Au to be Class 7 when activity concentration is > 2700 pCi/g, which is reached after 13.7 years for the initial concentration listed.

An even more stringent constraint can be applied for any gold that will be regularly handled by the general population. As a highly conservative requirement, we can stipulate that this gold must be less radioactive than a banana. Due to 40K content, bananas have an activity of ∼ 3520 pCi/kg, or about 420 pCi for a single banana. To meet this requirement, a troy ounce of gold with the initial isotope mix shown in Table 2 must sit for about 17.7 years to be below a banana equivalent level of activity.

What strikes me here with this paper is the suggested liquid blanket, so this would be a kin of D-T Fusion MSR. We now have two proposed technologies behind being able handle hot radioactive liquids.

If I had published a popular library under LGPL, and then found out that a chip company stole my code by ignoring/removing the license (change to less restrictive in attribution) I would perhaps go as far as subtly block my code from ever properly functioning on the company's chips, until the license is respected.

People might have forgot what happened in linux kernel with the "nvidia shim module". Those were actually banned, non-gpl compatible kernel module cannot use gpl-only symbols from the kernel. What happened here is even worse, straight up violating the license from the authors.

GPL license should have a version that could cheaply be defended by the victim of the license violation, if a verbatim violating copy is found. Some €€/month bill could pileup while a violating copy is proven to be distributed.

edit: minor fixes.

Fresh PWR fuel is ~4% U-235 and the rest is non-fissile uranium/cladding. ~95% of the potential energy still locked in the "waste" after spending ~2 years in the reactor. Breeder reactors would mean converting greater fraction of this mass into usable energy.

Running PWR core has be at +150 Bar to have +300*C outlet temp - so if something goes wrong it goes wrong like Fukushima. The fuel can stay in the core only until economics say running the plant at less than 100% design power isn't profitable. Every 18/24 months the plant is needs to shutdown for maintance few a weeks to months. I don't like PWRs.

"regular, i.e. non-breeder" MSRs that would just use uranium would be a massive improvement - both in safety and efficiency. Heat a massive silo of (secondary coolant) salt to +500*C with MSR, do the reactor repairs while this reserve runs the turbines, resume MSR. The issue is - politics, fear, and too little research in handling molten salts.

You should look at mitochondria:

The power plant of the cell.
Runs on a proton-gradient.
ATP synthase is essentially a molecular turbine and a generator.
oh. a turbine. Damm thing spins ~18000 rpm at medium throttle, pumping out elec- ATP. ATP.

Oops.. it's turbines all the way down.

The scientists didn't joke about that tokamaks will be a great neutron factory/highest neutron flux available. Yes, neutron activation of the reactor walls/components is a problem that we need to solve. However, transmutation of lithium to tritium is required for the reactor to work in the long term, so having a high neutron flux source is a plus in this regard. (and a negative in all aspects of structural integrity...)

The volume amount of activated material that would come out from tokamaks is a fraction compared to the literal tens of tons half-burnt uranium that takes way too long to decay to safe level. The more angrier the radioactivity, the less time it takes to decay away.

My level:

7 - 8

18446744073709551615, 4294967295, 65535, 255 what is this witchcraft?!

...

A lot of sevens in octal, and now your clipboard is full of Fs. /j ::: spoiler ... /toohigheffort

Be in one fraction at once. H2O consist of differerent quantum-mechanical portions: para-water and ortho-water.

And it only gets weirder.

paljastus

No. Don't google para-hydrogen. You will break your brain.

That implements a ******* VM in which all of the byte code runs in, and rest of source is just byte code listings that the linker magically gathers into a working program.

Every technology invented is a dual edge sword. Other edge propulses deluge of misinformation, llm hallucinations, brain washing of the masses, and exploit exploit for profit. The better side advances progress in science, well being, availbility of useful knowledge. Like the nuclerbomb, LLM "ai" is currenty in its infancy and is used as a weapon, there is a literal race to who makes the "biggest best" fkn "AI" to dominate the world. Eventually, the over optimistic buble bursts and reality of the flaws and risks will kick in. (Hopefully...)

It has been an goat-tier supported gpu on linux. Still plays doom (2016) era games at nearly max settings. Since last year i have startted calling it a potato that never rots.

Can I have some default juice? I think I glitched the matrix (again) today.

Two new hobbies to keep me in the reality^tm.

for the twisted

It's just art and music. Plus a likely revival of old skill.

So this is it. The enshittification has reached slowlorris levels.

Oh, this is a good one.

No mention of KDevelop? ;__;

I like it because it is the pretty much only FOSS graphical IDE where the edit-compile-debug cycle works. I'm been using it for last 10y for C/C++/Python, and it recently gained LSP support. (ported from Kate)

I intended this an sarcastic example; I think it's worse than putting the main outside of the branch because of the extra indent-level. It does have an upside that the main() doesn't exist if you try import this as an module.

Btw, ld.so is a symlink to ld-linux-x86-64.so.2 at least on my system. It is an statically linked executable. The ld.so is, in simpler words, an interpreter for the ELF format and you can run it:

    
ld.so --help

Entry point address: 0x1d780

Which seems to be contained in the only executable ~~section~~ segment of ld.so

    
LOAD 0x0000000000001000 0x0000000000001000 0x0000000000001000
     0x0000000000028bb5 0x0000000000028bb5  R E    0x1000

Edit: My understanding of this quite shallow; the above is a segment that in this case contains the entirety of the .text section.

I would put my code in a def main(), so that the local names don't escape into the module scope:

    
if __name__ == '__main__':
    def main():
        print('/s')
    main()

(I didn't see this one yet here.)

Holy hell, thats rough. :D

Do you know about ortho/para-H₂O? It only gets weirder.

JATth

@ JATtho @lemmy.world

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I mean no harm.

JATth

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Chinese semiconductor outfit has Linux MPP repository on Github disabled after a DMCA takedown request & FFmpeg team accuses it of using libavcodec code without attribution

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Programming for the first time

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The Six Stages of Code Grief

95% of Companies See ‘Zero Return’ on $30 Billion Generative AI Spend, MIT Report Finds

Linus Torvalds still uses an AMD RX 580 from 2017 — also ditches Apple Silicon for an Intel laptop

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What does 1000€ buy you in your favourite hobby?

Google is intentionally throttling YouTube videos, slowing down users with ad blockers

[XKCD]#3101 Good Science

Shots fired

Python needs an actual default function

Python needs an actual default function

Python needs an actual default function

Found in psycopg docs

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