labawi

12 ms·

61.
by labawi 5y ago
It's a fun calculation, but if the magnet is at 10GV it would need to use a minuscule current to avoid blowing up or melting down (P=I·U, so 1µA·10GV = 10kW), which in turn makes for an equally minuscule magnetic field (multiplied by u
62.
by labawi 5y ago
I am well aware methane is not currently generated from CO₂, as we are still using fossil fuels, not generating enough surplus energy to make the reverse process economical. Do you have any numbers on synthesis energy efficiency? It is inhe
63.
by labawi 5y ago
If you read the article, the claim was made further up with a link to posts why the author believes it. Quote: > This spike protein was engineered in a bioweapons lab[1] to be toxic in multiple ways Claims seems surprisingly coherent and
64.
by labawi 5y ago
If methane is manufactured from CO₂ and H₂O, there is no net GHG release, it's just storage, same as ammonia or pure hydrogen (though large methane leaks would be a problem). IMO, methane is good, if we are actively transitioning to ma
65.
by labawi 5y ago
Unfortunately the math is meaningless if it takes 10 000 years to get those 10 000 cycles. Batteries are currently competitive for short response times and short cycles. As price declines they become become useful for longer cycles, but the
66.
by labawi 5y ago
> The plug was an alloy of zinc and antimony – which we now know is a semiconductor. It was alternately capped by German silver (a nickel, copper, and zinc alloy) and copper on opposite ends. While the design may be possible to make and
67.
by labawi 5y ago
Panel thickness is not a positive factor for cooling, it's only good for structural support. Unless your panels are tiny, all the heat escapes through the front/back surfaces, thinner being better, though surface treatment and air
68.
by labawi 5y ago
Thin/flexible cells are often called "eco", because "less material", but then I find the composition and they are made of Arsenic, Cadmium or similar toxic non-degradable materials that will end up in the environm
69.
by labawi 5y ago
As you say, it could be done simpler. What we have is a manifestation of wastefulness.
70.
by labawi 5y ago
Did you run the numbers on savings with insulation vs using "smart" tech? Usually, it's only a matter of time before insulation pays for itself, the time being roughly a decade. Still, people would rather limp along rather th
71.
by labawi 5y ago
To be fair, that only applies to big tech and some fraction of non-tech companies. The rest have a fairly cavalier attitude towards computer security.
72.
by labawi 5y ago
Those are 3.5"
73.
by labawi 5y ago
Doesn't each platter side have its own r/w head? These days even a microactuator (maybe shared by adjacent plates?).
74.
by labawi 5y ago
Tapes and HDDs are magnetic. Flash and DRAM is electric. It is easier to create magnetically stable structures (magnets) than non-leaking capacitors. Flash has a better insulator than DRAM, but it wears out with use and leaks more with high
75.
by labawi 5y ago
The math probably doesn't check out. Paying 0.1% (1e-3) revenue for a core business dependency is a no-brainer (if you have reasonable margins). When you go from dozen to hundreds, you will not only bleed dry, you will be paying more t
76.
by labawi 5y ago
I'd concur, but careful with the wording. Distribution requires user interaction , not pregenerated output from an internal tool. ".. or providing access to its essential functionalities at the disposal of any other natural or le
77.
by labawi 5y ago
I don't think heirs getting money is a significant issue. It's the restrictions on use of said intellectual products and the persecution of those that use said work by our common powers i.e. states/police. Freeloading heirs g
78.
by labawi 5y ago
Like sulfur / sulfuric acid from all the coal we're burning.
79.
by labawi 5y ago
RSD Academy response to a Veritasium video, previously posted here: https://news.ycombinator.com/item?id=29281060
80.
by labawi 5y ago
When I go shopping in shop with FFP2 mask mandate, about 10% of people wear the mask properly. The rest have gaping holes between their faces and masks. BTW that includes me, as I see no point in the benefit/discomfort ratio, being vac
81.
by labawi 5y ago
(1) - the source IP won't be in the IP header, but is usually added to the HTTP headers so endpoint and TLAs will see who is connecting. (2) - have to concur, though sadly, you will obviously be exposed (and identifiable) to institutio
82.
by labawi 5y ago
See post from 2 days ago, with more comments: https://news.ycombinator.com/item?id=29281060
83.
by labawi 5y ago
Aanother one of those "standards" that you have to pay for, hence almost noone actually reads? I vote that ISO should publish standards for free, or be defunded.
84.
by labawi 5y ago
While there would be some current inducted into the bulb, I think it doesn't quite tell the whole story. If you had another bulb and wire, that was strung parallel, but not connected on the (switch side) far end, flipping the switch ON
85.
by labawi 5y ago
> isn't very dense, about 7% of that of water That's not a good metric. Hydrogen has about 2-3x energy density per mass vs carbon fuels. H₂ is about 120MJ/kg, while carbon fuels are about 35-55 MJ/kg, gasoline/di
86.
by labawi 5y ago
By charging and balancing individual cells, you mean group of cells that are connected in parallel (the 4P in 12S4P)? I don't see how or why would you balance individual parallel connected cells, unless you had a different battery conf
87.
by labawi 5y ago
To quote, your comment's ideas are bad and ignorant. Not because they are incorrect, but because you blindly insist on them. The reasoning is valid merely for a rock/concrete oven or a vacation house. I suggest you read up on laws
88.
by labawi 5y ago
You are conflating physically and politically hard problems. It's hard to beat physics, but we absolutely should be talking about, considering and demanding practical yet politically hard solutions. All we have to do is ask, and the al
89.
by labawi 5y ago
See reply by csense. Also DennisP: "They say the combined reaction will produce only 6% of its energy as neutron radiation, compared to 80% for D-T." Neutrons are a design requirement for typical tritium breeding fusion reactors,
90.
by labawi 5y ago
Maybe I am opening a local file? Using a local network resource? On a limited/expensive connection and don't want it auto-updating some BS? Running the browser in kiosk mode as a glorified HTML/CSS/JS GUI for a local app

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