wcoenen

35 ms·

451.
by wcoenen 5y ago
From the article: > You might be familiar with this if you know about electrolysis. On Earth this process is commonly used in manufacturing, such as to produce aluminium. An electrical current is passed through a liquid form of aluminiu
452.
by wcoenen 5y ago
Is it possible to load ".NET Framework" assemblies into ".NET 6" applications? (We have a lot of .NET Framework libraries, shared between different applications, and a complex dependency graph between them. So I'm w
453.
by wcoenen 5y ago
The actual high food prices are still to come. The spike in the price of natural gas in Europe and Asia caused shutdowns in a few types industry, one of which is fertilizer production [1]. It will take some time for the effect of that to ap
454.
by wcoenen 5y ago
If launches are expensive (e.g. 400M USD for a Delta IV Heavy launch) then you have to engineer the payload to make it worth that launch cost. It needs to be super reliable and last a long time, it needs to provide a lot of value, and you m
455.
by wcoenen 5y ago
Wind was cheaper. The levellized cost of electricity from solar has only recently dropped below that of wind. https://en.wikipedia.org/wiki/Cost_of_electricity_by_source
456.
by wcoenen 5y ago
Starship would allow the US to quickly and cheaply replace any lost infrastructure in space, therefore that vulnerability would be mitigated. (I'm not sure this would be an advantage for long though. Once a working cheap launch system
457.
by wcoenen 5y ago
> move our most polluting activities (factories, refineries) to the Moon or Mars The delta-v required to move objects between planets is measured in thousands of m/s (e.g. just getting to low earth orbit requires about 10000 m&#x2
458.
by wcoenen 5y ago
I think the idea is that you take a list of all domains and then count the number of DNS lookups that are done for each over the course of some time period (e.g. 1 year). Then sort them from high to low number of lookups. At the start of th
459.
by wcoenen 5y ago
If you mean "unique personality" as in separate from your social media account, that was also announced in the video. Apparently users will be able to create Meta accounts that are not linked to a Facebook profile. They'll st
460.
by wcoenen 5y ago
The video showed a couple different styles of avatar, including one that was a robot. I don't see why "furry" wouldn't be an option.
461.
by wcoenen 5y ago
According to [1], Elon held just shy of 23% of Tesla at the end of 2020. See table with "% ownership" column at the bottom of the page. [1] https://whalewisdom.com/stock/tsla
462.
by wcoenen 5y ago
Fine. I agree that a meta-discussion about HN-worthiness was unproductive and unpleasant. I will refrain from making such comments in the future.
463.
by wcoenen 5y ago
There are severe weather events around the globe every week, e.g. a typhoon just ravaged the Phillippines and Hong Kong earlier this month. Should all severe weather be discussed on hacker news?
464.
by wcoenen 5y ago
There are exceptions, covered by the "probably". I do not believe a weather event is worthy of such an exception. The low quality of the comments here seems to confirm that.
465.
by wcoenen 5y ago
From the Hacker News guidelines: "If they'd cover it on TV news, it's probably off-topic." https://news.ycombinator.com/newsguidelines.html
466.
by wcoenen 5y ago
The article says 230 kWh per ton of CO2, so you can just multiply that by a cost per kWh, e.g. 0.07 $/kWh for industry in the US. 230 * 0.07 = 16.1 dollars. So that suggests that most of the cost is not energy.
467.
by wcoenen 5y ago
Hacker news also does shadow banning.
468.
by wcoenen 5y ago
As far as I understand, the next generation of heavy lift vehicles (i.e. Starship, New Glenn, SLS) will not allow us to do better than a Hohmann transfer. And that would still mean waiting for the launch window to Jupiter (period 1.1 years)
469.
by wcoenen 5y ago
I don't think there's much controversy about keeping water out. The main scenario to avoid is a bunch of water flashing into steam (when the nuclear reactions suddenly ramp up, for whatever reason) and blowing everything wide open
470.
by wcoenen 5y ago
Surely signed tags and signed commits in git are supposed to be cryptographically secure? [0] Doesn't the security of those signatures depend on the security of the SHA-1 hashes that are being signed? [0] https://git-scm.com
471.
by wcoenen 5y ago
This is not just a coal story. Natural gas prices started rising a few months earlier, which put upward pressure on other energy commodities like coal and oil. https://tradingeconomics.com/commodity/natural-gas
472.
by wcoenen 5y ago
This is different, there is no special case handling here for you typing "exit". Python functions are invoked with parenthesis, while typing a name without parenthesis retrieves the content of a variable. The Python CLI helpfully
473.
by wcoenen 5y ago
The article reports that Bukele claims 2.1M active users. Setting up a lightning channel still requires a transaction. It would take days (even weeks maybe?) for Bitcoin to handle 2.1M such transactions even if it did nothing else, and an e
474.
by wcoenen 5y ago
It has to be a platinum coin because subsection (k) of https://www.law.cornell.edu/uscode/text/31/5112 is the special case that allows for issuing any denomination. Notes are a liability of the Federal Reser
475.
by wcoenen 5y ago
The goal here is to circumvent the debt ceiling. Writing a $1T IOU would add $1 trillion to the liability side (i.e. debt) of the bookkeeping (and presumably also to the asset side in the form of an addition to a federal reserve account), w
476.
by wcoenen 5y ago
The doodle is not visible for the rest of us.
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by wcoenen 5y ago
"Commonly used" is not referring to the number, or usage, of Bitcoin ATMs out there. It is referring to the fact that a large fraction of the existing Bitcoin ATMs are "General Bytes BATMtwo (GBBATM2)" machines.
478.
by wcoenen 5y ago
Also covered on phys.org: https://phys.org/news/2021-09-chinese-scientists-starch-synt...
479.
by wcoenen 5y ago
> Right now, the price of hydrocarbon fuels is artificially low everywhere on Earth. Even in the EU Just to provide some context to Americans: the typical price of gasoline in the EU is currently about 1.5 euro/liter, which translat
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by wcoenen 5y ago
Scalable synthesis of food ingredients could be the final agriculture revolution. Picture fields and farms replaced by smaller, dense industrial complexes more akin to an oil refinery. Some of the saved space could be used for solar panels

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