Gsus4

joined 2 years ago
[–] Gsus4@mander.xyz 2 points 10 hours ago

"Respect mah authoritah!!"

[–] Gsus4@mander.xyz 2 points 11 hours ago* (last edited 11 hours ago) (1 children)

it lasted as solid at a certain temperature for a certain length of time after it had reached that temperature.

That's the problem, reading the quotes from my top reply even they seem to admit that what they are calling temperature is not what is usually called temperature in thermal equilibrium.

[–] Gsus4@mander.xyz 2 points 18 hours ago* (last edited 17 hours ago) (4 children)

Fine, I can say this in a way that does not violate energy conservation but still uses the energy-time uncertainty principle:

Say you have a system with two levels, hot and cold like the gold sheet in this experiment. Then I can take a linear combination of these two (stationary) states, between which which the period of oscillation would be deltat=h/deltaE, which would be the time for the system to "heat" and "cool" within 45 femtoseconds. (lifted from Griffiths, page 143)

That would give a deltaE>1.5E-20J compared with kT (T=19000K) = 27E-20J 🤔 (T=1300K) = 1.8E-20J so the fusion T is close to the oscillation limit, the extra energy for 19000K is not going to do anything unless the cooling slows down.

Soo...I don't understand the point of the experiment. It just looks like they're exciting ~~atoms~~ metal and then letting them quickly deexcite radiatively...and then wonder why they won't absorb huge amounts of energy and melt (if the energy remained within the system, it would). I probably would have to get the actual paper, but I don't wanna 😛

[–] Gsus4@mander.xyz 9 points 19 hours ago* (last edited 11 hours ago)

Finally something the EU can invest those 600 billion in. Or buy it, like lots of EU startups were by FAANG companies years ago. Tramp says it's dead tech, so it's ok.

[–] Gsus4@mander.xyz 7 points 19 hours ago (2 children)

The part that controls/balances the discharge profiles, right? Because sodium batteries have a more non-linear discharge pattern.

[–] Gsus4@mander.xyz 2 points 22 hours ago

Mine is 10 years old by now...never had ads...if it connected to the internet it would probably get bricked.

[–] Gsus4@mander.xyz 2 points 22 hours ago* (last edited 22 hours ago) (1 children)

Wait, so it isn't getting worse, I'm just more aware of how flawed it is through long-term exposure?

[–] Gsus4@mander.xyz 23 points 23 hours ago* (last edited 23 hours ago) (3 children)

Yeah, the brine is where various useful ions can be further extracted from. https://news.mit.edu/2019/brine-desalianation-waste-sodium-hydroxide-0213

 

I'm asking because an IMDb rating cutoff above 6.5+-5 seems to generally do a good job making sure I don't regret watching something. But what am I missing among the sub-6? I know they exist, but it is hard to select among seas of...bad movies.

 

Venture capitalist Harry Stebbings faced a wave of backlash in June after urging European startup founders to increase their work hours — but he now admits there’s some room for nuance when applying his mantra.

Stebbings, founder of 20VC, a firm managing $650 million in funds, advised founders on LinkedIn last month that “7 days a week is the required velocity to win right now,” to compete with startups in Silicon Valley and China.

The post went viral, to Stebbings’ surprise, and sparked a debate on whether China’s brutal “996” work culture — which means working 9 a.m. to 9 p.m. six days a week — is needed in Europe.

“What Europe really needs isn’t more hustle-porn, it’s more aggressive funding,” Sarah Wernér, co-founder of Husmus, said back then.

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