skysight-inc/HackerNews huggingface dataset:
It isn't the shrapnel from flywheel failure that's hard to deal with. Frag containment, particularly of composite rotors that have high volume fractions of fiber and low volume fractions of binder, is actually pretty easy.

What's really hard to deal with is the angular momentum. Regardless of how the rotor fragments, angular momentum is conserved. What this means is that the failing rotor will produce amazingly high torques as it encounters stationary surroundings.

For typical rotor failures, you can figure that most of the angular momentum will get dumped into the environment in a few seconds as the fragments dig into whatever they hit and come to rest. So as a napkin exercise, if your flywheel spins up to full charge over a period of an hour, and then dumps all that momentum during ten seconds when it fails, you can kind of approximate the torque drama by multiplying the charging torque times the ratio of the charge duration to the failure duration. (I know the torque varies with the flywheel speed, etc. - this is just a disaster estimation exercise.)

The practical effect is that you have to secure the containment really well to make sure it doesn't break loose and roll through your facility on its way out into the street.

The only two ways I've seen of dealing with the angular momentum problem are (1) have two adjacent counter-rotating wheels that jam into each other when there's a failure or (2) have a containment shell that is free to rotate on one-time use mechanical bearings so it can take the failed rotor momentum and dissipate it over a reasonable time with a braking mechanism. Neither solution is cheap.
The general public will quickly start wanting self driving cars when they realize they can drink and get home. No more taking turns to be the responsible driver etc.
This is just a temporary migratory phase. Time saved in actual lives, sleep, work, child care, tracking, transport and delivery, insurance, etc. It's literally a matter of time.
Thanks!

Interesting idea about the email.

(One of my pilot groups has already asked to do the same with their Slack channels)
So what? I'm sure my family and I influence each other's political opinions as you say, but my opinions certainly don't reflect theirs.
>So UBI only makes sense where robots are doing all the work.

No, that's you just making assumptions. It's not one thing or another.
Using that logic, why pass anything at all through congress.

Oh wait.
I read the sentence you quoted.
I think it's like a series of aqueducts myself.

It seems obvious that the brain will resemble whatever we've got as the most complex modeling system at any given time while never being accurately represented by any of them.
Paranoia or not, if the reason was anything as benign, why not just tell her lawyer? Why the “But… if we happen to run into her on the street, we’re gonna be asking her some questions without you present.”? That sure doesn't inspire confidence in their goodwill.
I think it works for the same reason _A Modern Method for Guitar_ works.. by not using a familiar context (tunes/languages), you have another vantage point to help internalize the lesson.
I don't think you know what harassment is then, if you think someone talking to you on the street is de facto harassment.
There are about 70million pet dogs in US.

How many have been shot by FBI? The Puppycide documentary kickstarter guessed at one dog death every 98 minutes, which makes about 5300 a year.

That's too many, but it's not something that pet owners should be worrying about.

EDIT: (Compared to the say 1.2 million road traffic deaths of pet dogs each year in the US.)
So why can't you just say turn left or turn right etc... Just not being the one driving.

I've done exactly what you've described but also had the passenger telling me spontaneity saying go left right forward.

There is nothing inherent that says you can't do that with autonomous cars. But also it's likely that there will always be cars you can drive for fun just like you can still ride horses for fun.
I think "panicked spasm" is more accurate than "holistic response", at least in connotation, but as I recall the only real changes were in what was required, terminating the use of Scheme in the entire required curriculum with extreme prejudice, and adding, what, 6.005? Where they claimed to teach most of what was in 6.001/SICP, but using Java, a language which is "not even wrong" for that purpose.

Yeah, MIT has become a Javaschool, plus Python....

And just when the failure of Dennard scaling was making functional programming a lot more important.
They should have called this Satoshi As A Service (SAAS)
Do You Need a Data Scientist or a Data Engineer?
> But they won't talk to the actual lawyer involved.

Too bad. That's their problem, not hers.
I cannot put a link to the actual page because:

1) I would want to protect the privacy of the users in question.
2) You can't see the page without signing up for Airbnb.
Why Imaginary Criticism Is the Worst
We changed the baity title, as the HN guidelines ask. In this case a neutral subtitle was available.

https://news.ycombinator.com/newsguidelines.html
Edit: Sorry - I didn't realise that Isis is the name of the OP. I thought you were talking about the terrorist organisation

> Isis is a contributor to Tor

A 'political' entity making contributions to a project like Tor suggests they're making changes to benefit them. What changes would ISIS supposedly like from Tor?
In our project (actor.im) we successfully separated logic (cross-platform!) and make it work closely with backend team and we cover together all corner cases. Making UI on top of this is very-very easy.
Haha, the possibility of this occurred to me, interesting to have it confirmed. I guess I'm reflective of the hostile culture I was pointing out, lol
Location: Milan, Italy

Remote: Yes (preferred solution).

Willing to relocate: Yes, for the right opportunity.

Technologies: C#, Java, Mobile (Android, Windows Phone), Python, C , HL7, TCL, T-SQL, SQLite

Résumé/CV: http://registry.jsonresume.org/lechuckcaptain

Email: lechuckcaptain at gmail dot com

GitHub: https://github.com/lechuckcaptain

About me: Experienced programmer, passionate about technology and software development.

I work in a geographically distributed team as a senior developer in the healthcare business, managing the team for the development of a standard HL7 interface and custom systems integration.

I spend most of my free time as a freelance open source Android developer.

My specialties include: Android and mobile development, Systems integration, Health information technology

Upon contact, I can make myself available through email, skype, and phone. Please include a little about the opportunity when making contact. I will reply in either case.
Quite often the only push that can fix problems like this is push from upper management because no matter what someone is going to be upset and will sabotage or drag it out forever.
RFC 1122[0] says:

A TCP connection may terminate in two ways: (1) the normal TCP close sequence using a FIN handshake, and (2) an "abort" in which one or more RST segments are sent and the connection state is immediately discarded.

and

A host MAY implement a "half-duplex" TCP close sequence, so that an application that has called CLOSE cannot continue to read data from the connection. If such a host issues a CLOSE call while received data is still pending in TCP, or if new data is received after CLOSE is called, its TCP SHOULD send a RST to show that data was lost.

So this behavior seems fine unless another RFC specifically prevents it.

[0] - https://tools.ietf.org/html/rfc1122#section-4.2.2.13
Media training is a specific thing that thousands of people go through every year--business leaders, nonprofit leaders, lawyers, activists, etc. Usually, following the training, those people then go talk directly to reporters.

If the Canadian rule had been shaped like that, probably no one would have objected much. Media training costs a bit of money and takes a day or two, usually--no big deal. But that's not what the rule was.
The flip side is that even if only 25% want self-driving cars, that's still a pretty damn big market.
>There's a lot of truth to what's been listed above, and the message that your #1 priority should be to micro-manage your care is actually good advice for above-average intelligent people. I can't stress this enough.

You can micro-manage yourself to an early death thanks to the Dunning-Kruger effect. If you can afford it, a good course of action is to (a) get second opinions from trained professionals, and (b) research your doctors.
The FBI is very good at getting you to trip up when facing questioning and using that against you.

Isis is wise to stick with a lawyer but the 'approach her in public without a lawyer' smacks of using this 'lying to the FBI' tactic to get her charged as the first step if the FBI is targeting her for some reason.

See this from Popehat (Ken White)

https://popehat.com/2013/05/01/shut-up-i-explained-mostly-po...
You don't have to go back that far. In 2007-2008, I remember polling friends and coworkers about smart phones. Just as you suggest, most said they were fine without it and didn't want to carry around a computer.

I'd just read Kurzweil's book and I remember saying they'll probably have one by 2010-2011 because smart phones will be the free phones by then. I was right for one simple reason: Most people tend to dismiss new tech right up to when it stops becoming a luxury item. As soon as people find value in something and they can afford it, adoption is practically inevitable.

I hope my self driving car has a nice sleeper option so I can take long road trips and wake up at my destination.
She mentioned she works on the Tor project and asks the question if her participation is relevant in this case. That part isn't made up.

I find it reasonable for someone to assume that their participation in a currently legal (but controversial) project would be a potential reason that the FBI wanted to question you.
> A 'political' entity making contributions to a project like Tor suggests they're making changes to benefit them. What changes would ISIS supposedly like from Tor?

Isis here is the name of the author of the blog post, not the terrorist organisation.
As others have pointed out, if they just wanted her expert opinion on Tor they could have had the phone call or submitted the questions to her lawyer, which is standard practice by the way.

There is a huge whiff of shadiness about how the agents were behaving. Maybe they had a good reason and just wanted her help, but everything screams watch the fuck out or end up like Aaron Swartz.
Can Donald Trump Be President
How does this work if the clocks drift between the nodes?
Does this allow incorrect behavior because one transaction looks like it happened before another?
> the money is used for different priorities

More money chasing the same goods increases prices.

Imagine each family has $15K more than they do now. Some would upgrade their living conditions, causing more competition in the strata they are moving up to, which would increase prices. Some would buy cars they couldn't previously, causing more demand for cars, and increasing prices. Some would go for luxuries they couldn't previously, causing more demand.

There is no way around supply and demand.

The only way prices don't increase is if demand doesn't increase. If some people create more demand, others have to have less demand.
If you are referring to a layout that has a card UI like what Pinterest has, this can be built with almost any grid.

See the "Grid" section of Vital:
http://doximity.github.io/vital/components/

It's just a matter of styling the elements within the grid. I'm working on adding some layout examples to Vital.
Thyroid tumours are not actually cancer, scientists say after study
Does not have an ABET accredited CS major, for what that's worth.
Safety sells. Let's say it's 2025. You can buy a Tesla Model Z, or GM's latest sedan for about 30 grand. In addition to the E-MPG rating, there's also a new sticker for deaths and injuries per mile driven. The Tesla auto-drive enabled car has a death rate one tenth that of the GM car. Which one is your spouse going to insist that you buy?

I personally like to drive, especially on road trips, but I like the idea of a car that has much better reaction time that can correct if I do something stupid, or it sees something I can't (via vehicle to vehicle reporting).

Speaking of which, there will be many many opportunities to reduce impact severity. Example: a vehicle pulls out in front of you unexpectedly. If the car can react instantly where you'd take a fraction of a second, it can shed enough speed to reduce the severity of impact significantly (if not avoid it altogether). Reducing speed by 25%, will reduce the impact energy by almost half, so even small improvements will result in big differences in injuries and fatalities.
Well we do know what happened when DAT was introduced in 1987: nothing. DAT was rejected as a consumer audio format. One reason often cited for the rejection was the inclusion of DRM features (called SCMS, or Serial Copy Management System) for pre-recorded content. The subsequent Mini-Disc format was also rejected outside Sony's home country market, largely for the same reasons
It's not entirely humans' fault, even when humans are at fault. Road implementation is a contributing factor, for example.

I'm amazed that so many people in technology think that these rolling physical software boxes are going to be reliable enough to be better than us. We're pretty good at processing new, ambiguous situations.

We can't even build a secure internet. Which, by the way, these cars will be part of.

I think what will happen is that some accident categories will go down, others involving autonomous cars will go up, and there will be a lot of instances of people who can't get where they need to go because the car can't figure out some ambiguous situation.

Or a car will try to follow a Google route that goes around a block three times before it's (hopefully) finally routed on its way. And there will be rare instances of cars trying to drive to Ireland through the Pacific Ocean.
> I bet if you look at polls from the 1990s about the internet, you'll find a lot of people saying they're just fine without it, thank you very much, and they prefer the warm, personal experience of calling up a real human to book their plane tickets or whatever instead of punching their credit card number into some newfangled machine.

The enjoyment of driving is not about human warmth, it's about control and adrenaline. I don't think the comparison makes sense. I'd be more excited about autonomous cars if I could turn it off in the country (as some cars today allow) for recreation.

I definitely agree with what you're saying—I know I'm probably in the minority for enjoying driving at all—but I frankly can't imagine anyone enjoying reading their credit card over the phone.
Userscripts can also run before any content scripts through `@run-at document-start`. With a browser extension, you're giving up portability, security (an extension can wreck a lot more havoc than a site-specific script) and the freedom to publish without being dependant on a "store".
A ruby gem and NPM package is in the works. Almost ready for release.
Tesla to accelerate production by 2 years [pdf]
>Three-quarters of drivers don't want to own an autonomous car

Means that there's a market of ~60 million people that would buy an autonomous car.
This is a massive issue with the stateless aspect of HTTP, since the history API doesn't refresh the page and the state and components don't update (since its a React app) there's no magic needed to keep scroll position, but the router could be doing something I'm not aware. I've been looking for that solution for years and the first time I've seen it simply and clearly done is the Real World example in the Redux source.
0-60 times do not make supercars. People keep repeating that but that isn't really why they are interesting. A car is more than its engine.

Fast in a line is not the same as fast overall. One of the best parts of Spec Miata is the frustrated point-bys by Ferrari drivers.

A properly equipped supercar will still eat a tesla in turns and handling etc. The Renovo is actually a supercar and has more going for it than just the power train. (I have been driven in one by the founders)

I am all for autonomous vehicles ruling the road. People shouldn't be driving like idiots there anyway. And I believe they are interesting on the track too: http://selfracingcars.com/
So quite apart from being a crime against usability, now it turns out target="_blank" is a great big security hole, too. I fear this isn't going to be solved 'the flash way' (i.e. by ditching it altogether) but just by making window.opener.location read-only (but maybe only for different domains). One can still dream, though.
>Reds

>>Reds

Why? Brown I get, but I honestly don't see any reason why you'd favour red over a membrane keyboard.
TMT is a great way to manipulate survey results.
There are many varieties of Cherry switches each named after a color. Only some of these switches are "clicky" - some are quiet.
The person you replied to was talking about the unfortunate situation of some communists and socialists supporting Hitler over the respective competing party. It's analogous to Bernie supporters saying they'd vote Trump over Hillary or vice versa.
I'm pretty sure that's not how Tampermonkey works.
Probably not the video Animats is talking about, but illustrates the problem clearly.

http://www.liveleak.com/view?i=631_1309377564&comments=1
This was discussed earlier on the same blog: https://www.cockroachlabs.com/blog/living-without-atomic-clo...

Short answer: the DB will check for drifts and correct small drifts automatically.
Can you add ad blocking?
SICP is programming for the theoretically inclined. It seems analogous to calculus in math versus calculus for physics: you can study it more formally with all the proper proofs and derivations (and bizarre cases), or pick up just the applied bits (such as chain rule and dot notation) that you need for doing AP physics. This analogy suggests the existence of two approaches, with different implications and consequences for programming culture.
Many years ago I had an FBI agent call me and ask if he could come and talk to me because he was doing a background check on someone who was going for Top Secret clearance. I said sure. He came to my work, asked a few questions, and then went on his way. Gave me his card just in case I remembered anything he might like to hear. Never heard from him again. Very polite, nice guy.
There is no 'may' about it. It is generally fentanyl, one of the most powerful opioids.

Try doing a hit of fentanyl via IV and see what your blood pressure is.

I hate the way the medical community makes words like 'may', 'could' so intentionally vague. Could mean 90% chance, could mean 1%, depending on the context. It's like speaking a doublespeak.
there are literally thousands of types of cars that people modify and drive, for a lot more than just drag racing.

when autonomous cars dominate the roads, there will still be lots and lots of people driving around in their sports cars or classics or canyon carvers, for fun.
>Sherman, 21, a mechanical-engineering student at the University of Minnesota, Twin Cities, trusts the technology and sees these vehicles eventually taking over the road. But he dreads the change because his passion is working on cars to make them faster. “It’s something I’ve loved to do my entire life and it’s kind of on its way out,” he says. “That’s the sad truth.”

I don't fully agree - horses didn't disappear, but instead are now mostly kept by people that just love horses, love interacting with them and love riding them.

The same is likely to happen with cars. Most likely people that race them will continue to do so, provided they have the means. If at some point driving a non-autonomous car becomes illegal to drive on certain roadways, they will be trailered to where they are legal to drive. Horses are legal on regular road, but you cannot have them on a Freeway because it's no longer safe.
Yes, I know the history and how SCMS got created. The point is that there was a lot of consolidation of the record industry back in the 1970s and 1980s.
Ok, we've banned this account. If you don't want it to be banned, you're welcome to email hn@ycombinator.com. We're happy to unban people when there's reason to believe that they'll only post civil, substantive comments in the future.
I have yet to find an accused SJW supporting what you've said. Not even on Twitter or Tumblr.
If we're going the analogies here, this is more like someone with a gun pointed at them worrying that they may get shot. "Stop worrying!" you say. "You can trust the person holding the gun! They almost never shoot people who don't deserve it!"
What is your basis for the claim that this is not the reaction a healthy person would have?
Many homeowners have been told by power companies to shift their power usage to the evening to avoid grid overload... so things like residential AC and pool filters, etc are put onto timers which shift their load to the night. If max power availability is actually earlier due to solar installations, then they should shift their AC to cool during the hot part of the day - leaving the home cooler after they come home...

I don't think that explains everything about the demand curve, but using the current day demand curve to say 'solar doesn't work' isn't looking deeply enough.

I like the Arthur Clarke quote:
When a distinguished but elderly scientist states that something is possible, he is almost certainly right. When he states that something is impossible, he is very probably wrong.
- Arthur C. Clarke
>I think these are legitimate questions

They are, and the fact that you even have to defend asking them is a non-trivial indicator of how bat-shit crazy the thinking has gotten on this topic.
UAE Planning Mountain Construction to 'Control Weather'
Free trade has a place but I don't believe anyone expected the Chinese government to subsidize industry to the scale they have. Now they have this massive industrial economy and such scale it frightens me personally. They can at any moment start churning out military hardware, bombs, planes, ships and they have people who work for very little money and are relatively happy doing so. We have given up our manufacturing, economy, and know how to the Chinese and some day I am sure we will regret it all for short term profits. Currently the Chinese are planning to build a military base on a disputed island 120 miles away from the Subic bay submarine base. Unless if we elect Trump we might as well roll over dead and just bring our military home and let China do anything to anyone while we stand by.
I think that is genuinely her Christian name. Ancient Egyptian Goddess of health, marriage and wisdom.

https://en.m.wikipedia.org/wiki/Isis