jhayward

83 ms·

811.
Flight management system crash causes airline delays across US(arstechnica.com)
8 points by jhayward 8y ago|0 comments
812.
by jhayward 8y ago
Something like 65% of all land in the UK is owned by the same families that owned it in the Norman conquest. 0.3% of the population today. Since 1066-1100. The stat you quote may apply to some broader definition of “wealthy”, but for the tr
813.
by jhayward 8y ago
The search space for which molecule or sets of molecules are being recognized is huge. There are at least 120 different receptor types, and the dynamic range of their detection thresholds is large too. So we're looking at perhaps a t
814.
by jhayward 8y ago
> The biological half-life is about 70 days. You can't make that claim without knowing the species and the conditions. For instance, the study [1] below finds a biological half-life 4 times longer than that in rockfish in coastal
815.
by jhayward 8y ago
> You need 3kx higher levels to even approach danger levels The article almost starts talking about bio-concentration, but veers away after talking about findings in seals. Just because the open water concentration is well below safe l
816.
by jhayward 8y ago
The article doesn't specify, they could be just looking at patterns of "usual" vs "unusual" ad ids showing up. However, re-identification of "anonymous" ad ids is extremely common, and they could easily be
817.
by jhayward 8y ago
If you just want to use the conda enviroment build / maintenance tool just install 'miniconda' from the Anaconda site.[1] You don't have to have a whole numpy/scipy/jupyter environment if you don't want i
818.
by jhayward 8y ago
It's mentioned in the article, but much of what drives McDonald's profitability is their supply chain and logistics, and r&d around food prep/meal production. There are huge dollar volumes there at very low margins and i
819.
by jhayward 8y ago
Ah, you're using it to mean "no virtualization". Got it, thanks. I tend to use the term to mean single-tenant, user-supplied OS, non-virtualized myself but I see where you're coming from.
820.
by jhayward 8y ago
> Containers are "bare metal" Please explain this use of jargon. Are you saying that a Docker container is "bare metal" in some culture? A VM is bare metal? What do you mean by container, and bare metal?
821.
by jhayward 8y ago
> make it possible to turn it off. That's not actually sufficient. It needs to be opt-in, so I can search without signing in.
822.
by jhayward 8y ago
If you have an example of nuclear providing power at a cost 90% below wind, which is generally the lowest cost provider in the US please supply a link and support the implied claim that this is somehow representative of the industry and not
823.
by jhayward 8y ago
Every pilot has an absolute right, and responsibility, to refuse any aircraft they deem "not safe for flight in all weather and conditions". Period. Of course, you may have a long and uncomfortable conversation with your chief pi
824.
by jhayward 8y ago
> Was it almost pure price discrimination on the part of Boeing? In at least one other case I vaguely recall, monitoring two sensors required bus bandwidth that was unavailable without a physical refit of cabling or electronics, so tha
825.
by jhayward 8y ago
Even 20 years ago the public sector was perfectly on-board with so-called "catalog purchases" using approved retailers, and "payment card" (e.g., company credit card) without prior approval. I don't know where your
826.
by jhayward 8y ago
Yet another Michael Shellenberger column in Forbes. Folks, it's not worth going through the cherry-picking, misrepresentation, and outright fabrication of Shellenberger and his "Environmental Progress" sham organization. It
827.
by jhayward 8y ago
> I'm pretty sure there can be a "birthday paradox" variant of attack on genetics with respect to finding cold cases Yes. While not directly the same as your single-person birthday paradox example, there is a huge differ
828.
by jhayward 8y ago
That's a cherry-picked stat if I ever saw one. In context of this thread you seem to be equating that with "think climate change is a problem that needs to be addressed", which is an entirely different question. Most of us
829.
by jhayward 8y ago
As an "old person" this feels personal. What evidence do you have that supports such a claim for "old people"?
830.
by jhayward 8y ago
Arbitrary precision doesn't help with irrational numbers. You may be thinking of the "just use enough bits so you're sure the accumulated error isn't significant" approach, which is essentially what modern floating-
831.
by jhayward 8y ago
On the contrary, every single digital floating point operation has the inherent capacity to add noise. To make things worse, the noise depends very much on order of operations, relative magnitudes of operands, and other algorithmic aspects
832.
by jhayward 8y ago
> This is the first I've heard of ethanol being useful for reducing emissions. Why would the EPA be involved, if not for emissions reasons? The argument about net-zero or negative energy life-cycle return isn't what is meant
833.
by jhayward 8y ago
Most failures of this type end up being a cascading resource exhaustion problem propagated by an un- or mis-analyzed feedback or dependency path. It is frankly amazing it doesn't happen more often. I'm excluding the other common
834.
by jhayward 8y ago
This statement is logically unsound. The addition of ethanol is as an additive to reduce emissions, just as other petroleum-based additives are used. There's no constraint that such additives be net energy positive.
835.
by jhayward 8y ago
> In many parts of the world, being able to transport fuel to where it's needed is a huge advantage Just offhand, what % of the new car market would you say those areas represent in the current model year? In 10 years?
836.
by jhayward 8y ago
You are aware of the MCAS being tied to the single sensor on the side of the active flight computer?
837.
by jhayward 8y ago
It is relevant because MCAS is tied to the AOA sensor on the side of the active flight computer. Even if the Captain intervened, he may not have thought to switch flight computers to rule out a malfunctioning AOA sensor. I'm well awar
838.
by jhayward 8y ago
We don't know which pilot was the flying pilot on this takeoff.
839.
by jhayward 8y ago
I don't have specific examples but I have read of standard manufacturer tools to do audio analysis of diesel engines to diagnose which part(s) are failing. AFAIK this has been a standard type of diagnostic for decades, although perhap
840.
by jhayward 8y ago
In many, if not all automatic transmissions the pump does not circulate transmission fluid when in Park, even though the torque converter is generating heat. It's very possible to overheat a transmission in Park.

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