Hacker News Reader

aifooh7Keew6xooon Intel Neural-Chat-7B Model Achieves Top Ranking on LLM Leaderboard

As long as we're being pedantic it's worth noting that there's essentially nowhere without ambient gas or plasma -- that is to say, with no atmosphere.

It just varies in density over more orders of magnitude than we're casually comfortable with.

The moon has an atmosphere which is locally denser than the surrounding interplanetary medium.

So the displacement argument should remain technically true (the best kind) even on the moon.

aifooh7Keew6xooon Tata Consultancy Services ordered to cough up $210M in code theft trial

"degrowth" sounds like something you have a dermatologist remove from a butt cheek because it could become cancerous

aifooh7Keew6xooon Is AI Moderation the Solution to Online 'Gatekeeping'

AI moderation merely provides the tools for crystallizing adversarial structures of social friction into impenetrable and inscrutable algorithmic tyranny

aifooh7Keew6xooon Availability and Use of F-35 Fighter Aircraft: An Update

An expensive, new jet offers vastly superior performance relative to cheap, purchased jets in the case of perpetuating the military industrial complex

aifooh7Keew6xooon Before OpenAI, Sam Altman was fired from Y Combinator by his mentor

I find the omission of the term "face reading" from the punch line "medical face reading" to be a curious editorial choice

aifooh7Keew6xooon Why aren't motherboards mostly USB-C by now? (2021)

It's worth noting I suppose that newer USB power delivery standards are scaling voltage rather than amperage/current to deliver more power to the device.

The pins are specified for 1.25A each yielding 5A and I believe the 5A cable specification came at the same time as 20V with the 100W power delivery specification.

Every power increment since then has been a voltage rather than current increment.

aifooh7Keew6xooon U.S. reenters the nuclear fuel game

It's a wildly exaggerated figure. Maxeon cells are rated for 0.25% degradation per year which works out to about 8% in 30 years. An inferior cell might be rated for 0.75% which works out to 20% in 30 years rather than 10 years. I believe a lot of the panels rated for 0.75% are seeing around half that actual rate of degradation.

aifooh7Keew6xooon USA: 40% of births are to umarried women

Well, I understand it's pretty clear on killing:

https://en.wikipedia.org/wiki/Thou_shalt_not_kill

Certainly whether or not abortion qualifies as killing is a matter of interpretation, but judging from signs I've driven by I'd say it's not an unpopular interpretation

aifooh7Keew6xooon USA: 40% of births are to umarried women

Well, at a glance 90% of abortion procedures are performed on unmarried women, so a presumed increase in births to unmarried women would be correlated with a decrease in availability of the abortion procedure

Again, assuming it's an increase based on other correlated variables, they're getting what they asked for, so they must be happy, right?

aifooh7Keew6xooon USA: 40% of births are to umarried women

> I'm not sure why the anti-abortion crowd would be thrilled

I think the bible is a lot more prescriptive when it comes to abortion than sex outside of marriage, but I'm not exactly a scholar and that's far from the only reason for taking a stance on the issue

Your points are all valid, but I do think there's a component of fixed meaning that projects itself in relation to multiple perspectives and agendas

That said, I couldn't tell if the number was increasing or decreasing with a glance at the underlying data cited

I'm assuming it's an increase because it seems kind of high and correlated statistics like marriage rates have to my knowledge also been decreasing in recent decades

I'm further assuming that's probably a bad thing because positive outcomes are generally correlated with multiple parents and higher family incomes

But if non-traditional family arrangements are supplanting married families then who knows

aifooh7Keew6xooon USA: 40% of births are to umarried women

Trying very hard to figure out how to phrase this without seeming morally judgemental or politically divisive but presumably the anti-abortion crowd is thrilled

aifooh7Keew6xooon YouTube's Anti-Adblock and uBlock Origin

I'd go a lot further than "sucks".

The video results for most of my queries are like 90% SEO garbage without a video even being present on the linked page.

It's abject failure.

aifooh7Keew6xooon Nitrogen electroreduction with almost 100% current-to-ammonia efficiency (2022)

Generally speaking modern hydrogen pressure vessels are not metal for this reason, they are composite and not affected by embrittlement.

The Toyota Mirai, a production hydrogen car, uses a type IV carbon fiber pressure vessel rated for 70 MPa / 10,000 psi.

Type V are rated for 15,000 psi.

It is not necessary to liquefy hydrogen for adequate range in ground transport applications: The Mirai yields a 402 mile EPA rated range on gaseous hydrogen.

The tanks weigh 93kg filled with 5.65kg hydrogen, yielding an approximately 190 kWh of stored energy.

All without corroding flesh in trace concentrations.

By comparison the Tesla Roadster's 450kg battery pack yields a 200 kWh capacity.

Ammonia is and would likely continue to be stored in metal pressure vessels as an obvious cost optimization and thus would compare unfavorably to hydrogen pressure vessels' effective energy density where that area of the performance versus cost optimization space is not available due to embrittlement.

aifooh7Keew6xooon Nitrogen electroreduction with almost 100% current-to-ammonia efficiency (2022)

My primary point here is that if you see an ammonia spill you're going to die whether or not it explodes.

I suppose it's worth noting in your second link, the fatalities were from the kinetics of the impact, which is a hazard that belongs to "things with velocity" rather than "things containing fuels".

We can assume that uncontained fire and explosion are categorical hazards with fuels.

Ammonia has significant risks that few other proposed fuels present and I believe it's worth considering whether this is something we want moving outside of hazmat routes between industrial zones.

aifooh7Keew6xooon Nitrogen electroreduction with almost 100% current-to-ammonia efficiency (2022)

https://www.nbcchicago.com/news/local/attempt-to-pass-a-tank...

No, they have significant issues on a regular basis still.

aifooh7Keew6xooon Nitrogen electroreduction with almost 100% current-to-ammonia efficiency (2022)

It is certainly easier to liquefy, I can't argue that point.

aifooh7Keew6xooon Nitrogen electroreduction with almost 100% current-to-ammonia efficiency (2022)

I'm not sure I'd leap to "much simpler storage problems than for hydrogen" for a highly corrosive gas.

The lower explosive limit of hydrogen is ~4%. By comparison the 300 ppm immediate danger to life and health threshold of ammonia is .03%.

It is intrinsically dangerous, i.e. without a source of ignition, at concentrations 2 orders of magnitude lower than the LEL of hydrogen.

Not every hydrogen leak is a concern, but just about every ammonia leak is.

The established OSHA 15 minute exposure limit for ammonia is 35 ppm, 8 hours is 25 ppm.

aifooh7Keew6xooon Nitrogen electroreduction with almost 100% current-to-ammonia efficiency (2022)

Where are all the people that complain about the dangers and impracticality of hydrogen when the topic of using a corrosive gas that poses an immediate danger to life and health at concentrations as low as 300 ppm as a fuel comes up?

They're trying to avoid using the stuff in industrial refrigeration it's so nasty, and yet here we are gleefully considering rolling down the highway with it in the cheapest vessel industry can lobby for strapped to our bum.

I guess the notion has passed so quickly we haven't had time for the media to program us with corporate agendas...

aifooh7Keew6xooon McDonalds is giving free French fries in return for waiving the right to sue

It probably went to the same place as critical thought about the app economy as a whole

aifooh7Keew6xooon Elon Musk's X launches two new premium subscription plans

Do we really need to look for corn in every bowel movement Musk takes?

aifooh7Keew6xooon Elon Musk predicts X will replace banks in 2024

as if we don't remember PayPal stealing from us

aifooh7Keew6xooon SBF testifies he knew 'basically nothing' about crypto before starting company

The largest signal that's present in that set is antisocial behavior, not competence

Inclusive of SBF

aifooh7Keew6xooon Yup, that was an earthquake outside SF

Don't forget high deserts! You can get snowed in, drowned in a flood, cooked alive and then run down by a 30 mile an hour fire storm all in the same day if you're lucky!

aifooh7Keew6xooon Yup, that was an earthquake outside SF

The legend lives on from the Chippewa on down

Of the big lake they called Gitche Gumee

The lake, it is said, never gives up her dead

When the skies of November turn gloomy

aifooh7Keew6xooon Yup, that was an earthquake outside SF

Well, it usually beats homelessness or rent slavery.

aifooh7Keew6xooon Finding that lead emissions from aircraft engines contribute to air pollution

I understand that additionally in some vehicles (not necessarily aircraft) predating ethanol dilution the evap systems may begin to malfunction at high elevation and temperature due to the lower initial boiling point of ethanol.

In the case of my vehicle it results in low/rough idle and positive fuel tank pressure which otherwise do not occur either at lower elevation or with ethanol-free fuel at elevation.

aifooh7Keew6xooon 0 To 100 kph in 1 second [video]

not sure why the mad votes exactly

to my knowledge banning ground effect devices and geometries has been a decades long game of cat and mouse which at virtually no point has resulted in an on the track reality of equal footing due to a complete absence of positive traction from active or passive ground effect features on all cars

just about every race I've ever watched has featured that year's aero controversy front and center in the commentary

F1 has been as much about engineers racing the rules as drivers racing the cars as long as I've been watching

aifooh7Keew6xooon Trying to make sense of why Otis exploded en route to Acapulco

A gold-bearing asteroid, naturally.

aifooh7Keew6xooon SpaceX Starship Super Heavy Project at the Boca Chica Launch Site

It's worth noting that a recent Supreme Court decision, Sackett v EPA, has somewhat curtailed the more... creative wetland designations.

https://www.supremecourt.gov/opinions/22pdf/21-454_4g15.pdf

It's actually kind of disgusting how transparently the EPA has been playing their hand to maximize exploitable/monetizable authority and jurisdictional area without regard for real environmental concerns, development impact, or indeed their own legal mandate.

There's absolutely an element of that organization that doesn't care either way what happens to the environment or community, they just want infinite authority under the guise of environmental protection so that you to have a reason to bribe them.

aifooh7Keew6xooon Scientist [Sapolsky], after decades of study, concludes: We don't have free will

I feel like there's an inherent contradiction in the statement that one has concluded they lack free will.

If you lack free will the conclusion can't be yours, can it?