skysight-inc/HackerNews huggingface dataset:
Supersonic flight doesn't have to be as noisy as the Concorde was. Remember, Concorde was designed in the mid 1960s (over 50 years ago) with minimal use of computer modeling. We've had decades of advances in computer modeling and processing power so it's now possible to design planes with much quieter sonic booms. On the order of 100x to 1000x quieter.

Here's one plane being developed by Lockheed Martin, "designed to create a sonic boom only 1% as strong as that generated by the Concorde." Though, this plane is smaller than the Concorde so it's boom should naturally be smaller, however the idea still applies to other supersonic planes.

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

Lockheed Martin claims their design only generates 60 A-weighted decibels of noise. This is compared to the Concorde’s sound at cruising altitude of about 90 A-weighted decibels. 60 decibels would put it at about the sound of a normal conversation. That would make it quiet and non-intrusive enough for overland flights.

http://lockheedmartin.com/us/innovations/072016-webt-superso...
I was recently surprised to discover folks are using this on old phones or tablets as a "server" in various capacities.

You have storage, camera, at least dual network access (wifi + otg usb ethernet + cellular), a battery (ups), autostart capability via a purchase, basic package support.

Smaller than a laptop, way more self contained than a Pi, enough for some basic tinkering for sure.
Look at public schooling in the US, how organizations are working to cut it down with charter school diversions, corrupting history and science textbooks with religious concepts, and forcing teachers to be parents, police, social workers, and underpaid teachers, and to do it with a smile on their face. Higher standards than police and politicians.

Add all this up and you start to see the educational system looking like it's being sabotaged.
Weird. It looks like just a website but apparently it's a fusion reactor underneath.
I can't say I do much of #1 or #2, but my advice for #3, was worked well amongst my friendgroup. Though of course, we end up doing more than just talking about the product I'm trying to run by them, I generally get some decent feedback, even on little things.
Both even
Why does Apple have to steal from an iOS developer? It's not like they couldn't afford to just buy the rights. This isn't even new for Apple. They've ripped off their biggest supporters for years. See sherlock/watson for instance,

https://en.wikipedia.org/wiki/Sherlock_(software)

They've played dirty pool for so long, I can't see how anyone supports this company anymore.
We just managed to sell another flagship GM vehicle, and the software was so bad, it was nearly a deal-breaker. (Most years of this model had software bugs that were so bad, they could literally kill you — for example, the exhaust system could overheat, and burn the car down). Also, basic electro-mechanical things, like seat belts and the FM radio started to die after 3-4 years. This is with light use in CA.

Even when new, the new model handled terribly compared to the old GM (same model, engine size, etc).

Its compauter regularly locked the rear wheels when turning and going uphill, and the steering geometry caused it to squeal the tires at low speeds in parking
lots. Neither the old GM, nor the replacement had these problems, and all three are essentially identical body styles.

Tl;dr: Congrats to GM, but I’m waiting for literally anyone else to ship a competitive EV.
> ... Ubers a great place to work now.

Male engineer (not at Uber) checking in. I find myself pretty astonished at these reports of other men's behavior. And yet, it seems to be widespread enough that some women indicate it's not as rare as we might think.

So, regarding "Uber's a great place to work now" -- is that based on testimony you've heard from women there? Because if not, I'd wonder whether you really have enough evidence to make a claim like that.
51% isn't even accurate. Hillary got more votes, they just unfortunately weren't in the right places.
Sounds like each lambda is a microservice then?
I was curious as I've never found a standalone visual git client I liked as much as IntelliJ's integrated one. So I downloaded it, found it was 1/4 of a GB and wouldn't look at a local repo without logging in to a web service. Deleted.
Also many thermoforming efforts consider adding an artificial dynamo (using, say, superconducting rings) to protect both the atmosphere and life on the surface. The energy cost of maintaining an artificial dynamo would be less than the incremental maintenance cost of maintaining atmosphere and dealing with health risks from radiation.
I wonder how concerned they are about leaking proprietary technology from Chinese employees. Apple constantly struggles with this since the employees are paid little, but the incentive to leak and "share" information is very lucrative.
> with just a little bit of will

As a once-fat guy, it's truly frustrating to read this. If there's one thing I could drill into people observing this problem, it's that different things are hard for different people.

For myself, losing weight (and keeping it off long term) is by a distance the hardest thing I have ever done. I've done a reasonable range of challenging, willpower-requiring things, and I've been fairly successful academically, professionally, and as a father. The difficulty of any of the things I've done in my life pales in comparison to the challenge of stopping myself overeating (particularly sugary foods).

I make no claims that I gain weight more easily than others, but I am quite positive that I want food a lot more than most - similarly, I feel no need to drink to excess, while for others it's a challenge that ends their lives. I don't advocate normalisation of fatness, but I do wish people could manage to avoid being so unpleasant to people who are struggling.
Used Nissan Leafs are pretty cheap too. ($8k-$12k, with 25-40k miles)
Business Strategy Book Summaries
Hmmm... do you mean written versions of oral traditions? We really don't know them past one generation since all of recorded history was literally written by the winners.

How many truly illiterate people do you know?

I suppose you could say that most 5 year olds are illiterate... are they capable of rational thought, perhaps... are they wellsprings of human knowledge and culture, I personally doubt.
This is like saying the thief who stole my car didn’t hurt me cause I’m only working part time and can easily work more hours to buy another.

The money gifted Musk could have gone to schools. Higher taxes on casinos and tourists isn’t free, it means fewer casinos and tourists. And it also can go to schools.

Giving billionaires handouts is terrible public policy.
But what approach would it take to beat a human at Ms. Pac Man?

When people hear ML has felled the worlds classic strategy games like Chess and Go, leaving world champions helpless, the idea of humans beating computers any game seems quaint.

But forget world champions, the best systems cannot beat a mediocre player at Ms. Pac Man. Its not because no one has tried. There have been some competitions and research papers.

Of course, the challenge seems pretty damn unimportant compared to self driving cars. But still, if it were trivial to do, I would have guessed someone would have done it.

What other games exists, where AI can’t beat humans with less than 60 minutes of lifetime experience?
Sorry to say this but people like you who do not understand the gravity of the crime or the appropriate way to address it are part of the problem.

It is ironical that the same kind of people think they are in any position to grade an apology relevant to this matter.
If I open this on my phone, run vi <enter>, and type some text - how do I input <escape> so I can say :wq ?
> I'm not as pessimistic as Bret Victor [...] ABriefRant

I'd actually go one step further than that "rant".

In the real world, small physical motions usually have little control significance. Mouse movement and keyboards are among the many exceptions. With XR's hand tracking, that can change. For example, while gaming is focused on "feeling like it's real", so game hands overlap real hands, for getting work done, it's nice to have stretchy arms, so you can reach across the room to grab things. For optimal long-term ergonomics, you want a mix - sometimes you want the exercise of waving your arms, and sometimes you want to achieve the same end by merely twitching a hand resting on a knee or keyboard.

So not only did the video reduce all of human motion vocabulary, including gaze and voice, down to a single finger over a sad UI, but even that single finger was used in an impoverished manner. ;)

> XR will work much better with some pointing and voice input

Eye tracking as well. "Look; point; click" has a seemingly redundant step.

When someone is watching an education video, say IBM's atom animation[1], you want to both be able to field common questions like "What are the ripples?", but also notice that they are looking at the ripples, and volunteer related content.

One can do prototyping now, with WebVR, google speech recognition, and in-browser or google voice synthesis.

[1] https://www.youtube.com/watch?v=oSCX78-8-q0
Not when transitioning -- sonic booms ("a sonic boom"?) are/is emitted continually at supersonic speeds.
The Concorde's design was finished in 1960, when almost all computers still used vacuum tubes. Computational aerodynamics definitely made a huge improvement in design, especially for supersonic flight.
Hours per week charging is better than hours per day, but still only practical for people who can run heavy wiring to a private garage. I keep wishing gas station battery swaps were happening.
If they can make these planes, I don't think selling them will be the problem.
The Dark Web for the Rational [pdf]
CHUWI LapBook Air Unboxing and Hands On
I'm using JetBrains IDEs now instead. They're definitely not lightweight, but it's built in functionality is generally a lot more stable than what I get with text editors + a lot of plugins.
4 hours combined with airport waits ends up becoming something like 6 hours right?

Is there a big difference in practicality between 6 hours and 10 hours? Feels like you still lose the day to travel for the most part.
That's about ~250x the JWST. Given that we're talking about a society that has developed far enough to be sending people to Mars and terraforming the landscape, I don't think that 8 doublings would be an unreasonable multiplier of current capability. Still a flagship, many-decade mission though.
What is DDOS?
A glimpse into how the world will be once capital accumulates more and more.
Genetics research is slow. It could be 10 , 20 or 50 years away.
Leaf is very short range isn’t it?
There probably wouldn't be a moon left either
Most sources talk about the industrial revolution hitting Russia in the 1890s — it was an agrarian society with feudal governance.

It was decades behind the UK and others. That’s not to say there was no industry, but over half of output was peasant agriculture circa 1900, and the old methods were unable to adequately feed the nation.
Elon, you are using wrong account.
Who cares about desktop apps? Most Java development is done on the server where the size of your runtime isn't a constraint. Breaking reflection, delaying language features, releases, etc is a very poor tradeoff for the module system that has been delivered.
Codiad Web IDE
The Secret to Automated Authentication
The article is poorly done. That being said, I don't disagree with the premise.

As I understand it, advertising is seen in terms of acquisition cost (and ROI more broadly). If ROI is a positive, the campaign is a success.

However, this binary view is incredibly limited, and thus leaves significant room for rent-seekers who add no real value to the process. These rent-seekers will leach away value until it is at the minimum acceptable value. If the (legitimate) advertising industry can cut out the fat, it stands to significantly improve results for its clients. Until those clients demand improvements, however, these costly changes will not be implemented and the industry will continue on.
Would be interesting analysis if done correctly. Unfortunately author mistakes absolute for relative risk. To be fair, this isn't an infrequent thing.
Interesting, it only needs a 1-2 Tesla magnetic field. MRI machines go up to 3T, which means this isn't too outlandish with known technology. The main issue is that they probably want a Mars sized field at 1-2T.
I feel like ZUIs never got a fair shake, and could really do well with touchscreens.
Well, now you can care about Java desktop apps - that's kind of the point of all this :)

And server apps don't really switch that fast to newest Java release. Only now we're seeing JDK7 based things for example.
Three word address for every place on earth [video]
> At $35k+ with 240 miles of range, it's starting to get close but realistically not quite there yet for "mass market" adoption.

Really? Why is that? For me and I’m sure tons of other people 250 miles is more than enough. I think it’s extremely rare I’d go 100+ in a day.

If this was from Honda or Toyota I’d probably jump at it if I needed a new car.

I’ve never had any experience with GM, and their reputation isn’t exactly stellar.
Yeah, that was pretty passive aggressive, assuming it was intentional. Didn't ask the second time I opened the link, though. Offending scripts come from pushengage.com .
Yes and range decreases drastically with battery age and cold temp compared to other EVs. However, as mentioned, they are a steal if you have a short commute.
Yes, there is. If it's 6 hours you can make it two way for a meeting in one day without breaking your sleeping schedule.

If it's 10 hours, you can't.
This is true, but there's also a significant shock when crossing the sound barrier as the shockwave front draws up against the body of the plane. That was one of the biggest factors in why it took so long to break the sound barrier- you've gotta blast right through it. Around the sound barrier the rapidly changing air pressure pulls on the plane in weird ways, for instance literally twisting the wings off spitfires. They couldn't predict most of those problems ahead of time.
Why would this be the end of the startup era? That era has been going on for decades it's just taken different forms. It's maybe the end of the overvalued photo sharing mobile app company era (it can't come soon enough).

Even "old" startups like Palantir that claim valuations at $20 billion are privately being revalued down significantly [1].

We're simply moving into a different era and the very public, very flash, direct to consumer startup market appears to be well beyond saturated. The money will go back to where it's always gone, quieter B2B type companies that build boring technology that solves less glamorous, but more important, problems.

1 - https://www.bloomberg.com/news/articles/2017-10-17/palantir-...
It's a credit yes, but it's not a refundable credit. Which means you need to owe at least that amount of tax. So for 2016 that means a single person has to earn at least $46,900 to get the full benefit (assuming no other non-refundable credits). The median US personal income for 2016 was about $31,100, so I think it's fair to say the majority of Americans can not take full advantage, although I agree with your last statement.
For such websites, closing and never coming back is a good option. The internet is large and full of alternatives. I often give up reading from offending sites.
Cool!. Was that a non rooted phone?
> If I read this forum, it sounds like nobody has never done anything wrong, behaved inappropriately in anyway, ever.

This is false. Nothing in the forum implies that if one of the participants of this thread were to be found guilty of an inappropriate behavior, then they should be excused.

In fact, most of the discussion in this forum implies that if one of the participants of this thread, or anyone in the industry were found to be of inappropriate behavior, then it needs to be dealt with seriously.
Dawn's mission extension to send probe into indefinite orbit around dwarf planet
Did you account for inflation? $1 in 1970 is worth $6.52 now.
> plus interest ...

> I paid cash.

How are you paying interest if you paid cash?
This is the principle of just about every commercially successful "casual" game. The difference is that most games don't teach you anything useful outside of the context of the game.
You worked on this actual data? It's amazing how Hacker News brings together people from such diverse backgrounds.
There are – or should be - many foods that may meet the definition of "processed food" and contain no fructose. I can't name or confirm specific brands, but unsweetened bran flakes would be one such example. Some varieties of crackers would (or should) also contain no fructose.

There are of course many more processed foods that don't contain added sugars, and therefore would contain no added fructose. At least some of these could be considered relatively harmless in moderation.

I'm not a doctor, a dietician, nor am I a nutritionist, so take the following with the largest grain of salt you wish, but a diet entirely devoid of fructose doesn't seem like it would be particularly useful compared to a diet with moderate fructose intake, in the general case. On the other hand, I'm unsure whether avoiding it entirely would be particularly harmful, if you were so inclined (but again, I'll point out that I'm not a doctor and this is not to be taken as medical advice.)
I've been in planetary science and never encountered this theory. I have a default position of skepticism towards it for that reason, but I don't have a reason to object on the face of it. The question is not where the oceans came from (that's settled -- it came out of the mantle as the Earth cooled, and ultimately before that from cometary impact), but how the oceans did not boil or evaporate off like they did everywhere else. I could understand a theory that they were kept from boiling by being in the habitable zone AND by some combination of life processes, and that this hydrogen-capture mechanism helped replenish the ocean as hydrogen escaped from natural gas upwellings. But I have no sense of the scales and magnitudes involved to see if inputs approximately match outputs without seeing the underlying paper.
One of the explicit goals of Boom the company is to make overland flight viable (which makes the economics of supersonic flight closer to viable).
Shellinabox
They don't have an aircraft yet, obviously. But one of the company's explicit goals is overland flights.
> It might even contain ice or water

As a boy in the early seventies, reading Tintin: Destination Moon, I was always put off by the episode with the underground cave full of slippery ice. That was clearly an outdated view of lunar conditions, which somewhat dented my suspense of disbelief.

Maybe I needn't have worried.
This has nothing to do with a software engineer looking down on other types of engineering, since I'm not a software engineer. My post was all about Boom's marketing mouth making claims that it won't be able to back up, or possibly making half-truths that are going to leave people disappointed.

I'm also an "aerospace veteran" and have seen more projects cancelled than succeed (most recently the Lear 85). Designing a new plane is capital "H" Hard. That goes doubly so for planes that are big departures from the previous experience of the company. Cessna makes great light business jets. They are currently trying to design a line of bigger jets and are finding it very hard. Lear can't figure out how to make anything without mechanical flight controls. It takes a couple generations of design to figure things out. So a bunch of engineers from Scaled and Boeing aren't going to help. How many ex-Concorde engineers have they hired?
you a a terminal-friendly keyboard for that. Get one on Fdroid.
That's not personalisation. Many (most?) people use both web and mobile. And do you always remember to log in before you do a search on Orbitz? Or are you sometimes logged in and sometimes not?
Use an alternative keyboard, like Hacker's Keyboard.

https://f-droid.org/packages/org.pocketworkstation.pckeyboar...
It is worse, but probably not that bad. There's strong evidence that emissions at high altitudes have magnified effects on the atmosphere (~2-4x IIRC) and planes are the second largest source of transportation CO2 besides road vehicles. Supersonic planes fly higher and emit a couple times more pollution. However planes are still like 7% of all transport emissions even when scaled for altitude, and stopping those emissions is incredibly challenging.

Plus, frankly, if we get a handle on energy and road vehicles it probably just won't matter. Those two factors would reduce emissions by an order of magnitude. The planet might just be able to sustain air travel without intervention. Also, I like going fast.
There were a couple parallel sub-discussions earlier this week, but no mention of spaced repetition:

Training exercise boosts brain power, Johns Hopkins researchers say | https://news.ycombinator.com/item?id=15508714 (Oct 2017, 138 comments)

>pdog: Do you know the best exercise for your brain? Actual exercise

>JamesBarney: I hit dual n back pretty hard trying to improve my IQ

https://www.gwern.net/DNB-meta-analysis
Case in point. I thought I read bolts (volts?) sometimes put themselves into reverse and accelerate while off+charging. I wanted to paste a link, but found this article instead. It looks like this safety issue is by design. (Also, CR says the handling is “choppy” on uneven pavement, which matches my old lemon):

http://www.chevybolt.org/forum/#/topics/7778?page=1

“On this rainy morning while turning to park in a stall and so I take my food off the accelerator and expected the heavy regenerative braking. Instead it accelerated in to the stall and so I had to brake heavily and it still didn't seem to take hold. Luckily the cement parking block stopped the car albeit I still went over it.”

Response from other owner:

“Very possible for Regen to deactivate in slippery conditions. Hitting a large bump may also disengage Regen, which will feel like the car is actually speeding up (since you are expecting it to decelerate).”
That's the question, isn't it? It would be a good idea to find out.

(Additionally, I suspect any figure like 1/40th the volume of Concorde is drawn from thin air at this point. They don't have a prototype flying subsonic yet, much less supersonic.)
It's a set amount money set aside to jump-start the market. The subsidies will end when the fund runs out and pure (if there is such a thing) market forces take over. Fossil fuels are subsidized permanently, however.
Some keyboards, like "hacker keyboard" (f-droid) have an escape key.
Coin stash that puts new spin on China’s 100 years of humiliation
> Sometimes I forget that these devices are just little computers!

When vendors try so hard to lock everything down, yes, users tend to forget about what you can do once you have freedom to do what you want with your device.
Hack-back bill would legalize companies hacking their attackers
This looks pretty awesome. I haven't used JavaFX before, but if it's easy enough to deliver high quality UX with it, I'll be using this for any side project desktop apps I end up working on.
I agree to a certain extent, and I think we can see that in the the evolution of video game interfaces. If you look at games like System Shock 2 to Bioshock, you see that the interfaces have evolved in the direction of finding ways of simplifying the information presented to the player and eliminating irrelevant information.
We’ve had supersonic flight for just over 70 years now, and haven’t seen any indication that your fears are justified.
I'm currently developing something like this for iOS, and I hope to have a basic proof of concept in the app store by the end of the year. https://github.com/tbodt/ish
Well, I'm not, but somebody is bound to call it out for people who finance.