HNHacker News
TopNewBestAskShowJobs

Pinckney

1,344 karma · joined April 25, 2010

submissionscomments
Pinckney··on Is It Time for Germany’s Doorless Elevators to Move On?
I think paternosters are really, really cool. I'd love to ride one.

However, I must wonder whether they can be used by the elderly or disabled. How do you board one with a wheelchair? Or do they just run alongside modern elevators in buildings where handicapped accessibility is a requirement?

Pinckney··on Same-Sex Marriage Is a Right, Supreme Court Rules
I would bet the biggest opposer to divorce will be the INS ... imagine the Green Card businesses that would enable! After all, it should make little difference to INS whether people choose to have their multiple marriages in series or in parallel.
Pinckney··on Generating Magic cards using deep, recursive neural networks
It doesn't appear to be anything obviously associated with the Nazi group, though.
Pinckney··on Loaded with lead: How gun ranges poison workers and shooters (2014)
Lead-free ammo is much more expensive, and gun regulation is a politically charged topic. Any attempt to ban lead ammunition will, rightly or wrongly, be perceived as an attempt to discourage recreational shooting by making ammunition less available. Much like California's handgun drop-safety requirement is currently perceived as an attempt to discourage handgun ownership, by making them less available, or Texas' recent abortion regulations are perceived as an attempt to make abortions less available. They're ostensibly regulations enacted for health and safety, but nobody affected by them believes that story.
Pinckney··on Autonomous truck cleared to drive on US roads for the first time
I'm sure it will happen, just like some people rob ATMs. But I don't think it will be trivial to do successfully, and the losses will almost certainly be manageable.
Pinckney··on The World Record for the Shortest Math Article: 2 Words
The paper doesn't make any sense without the title:

"Can n^2 + 1 unit equilateral triangles cover an equilateral triangle of side >n, say n+\epsilon?"

Pinckney··on Get your own USB PID
That doesn't matter to an individual developer. Why should they care if the set of all in use USB PIDs has collisions? It's only becomes a problem for them if their PID suffers a collision.
Pinckney··on The ‘Tsar Bomba’ Was a 50-Megaton Nuke
If you buy the idea that MAD is rational, how can you also support SDI? Do you want a nuclear first strike to be a viable option?
Pinckney··on Thomas Edison's 146 question interview for prospective employees
Brazil and Suriname, since 1946.
Pinckney··on First pictures of Tonga's newly-formed volcanic island
You might find this interesting

http://en.wikipedia.org/wiki/Graham_Island_(Sicily)

Pinckney··on FedEx and UPS Refuse to Ship a Digital Mill That Can Make Untraceable Guns
Why is Mr. Wilson going out of his way to tell them what it's for?

"What are you shipping?"

"CNC Mill."

"Great, we'll be happy to ship that for you."

Don't try to confuse the customer service rep by saying things that have the potential to confuse them; they don't need to know what it's meant for.

It's doubtful that UPS, at a high level, cares enough to ban this. Rather, someone heard "something something GUN MACHINE," doesn't know anything about the relevant law, and made a snap decision that was least likely to get them in trouble.

Pinckney··on A Plumber’s Guide to Starships Part 4 – Materials in High Radiation Environments
Ion thrusters basically are low energy particle accelerators already. The problem, aside from energy consumption, is scaling up the thrust. You can't just cram twice as many particles through your particle accelerator without scaling up the mass of the thruster itself, or decreasing the exit velocity. And it does you very little good if your rocket has the fuel to accelerate to .1 c, if it takes you 10,000 years to do so.
Pinckney··on EFF Wins Battle Over Secret Legal Opinions on Government Spying
That would all be more reassuring if the Census Bureau hadn't assisted in rounding up Japanese Americans during WWII. Whether or not intelligence agencies track minorities now is irrelevant. If Congress ever decides all Arab Americans, or Japanese Americans, or Mexican Americans, or any other hated minority de jour, are a threat to National Security, they'll repeal the laws protecting census data again, and the FBI will have those records within days.
Pinckney··on Pablo Escobar’s hippos: A growing problem (2014)
It's already been done with agricultural pests.

http://en.wikipedia.org/wiki/1989_California_medfly_attack

Pinckney··on Leatherman Tread, a New Wearable Multi-tool
I don't think the lack of a blade is an issue. Don't most people who carry multitools already have pocket knives? Pocket knives which are often better quality than any multitool blade you're likely to find?
Pinckney··on The world's biggest ship – for 53 days
They use these:

http://en.wikipedia.org/wiki/Twistlock

gCaptain has some good photos from the MV Rena sinking which show how much abuse they can take before failing.

http://gcaptain.com/incident-photos-week-rena/

Pinckney··on OSIRIS spots Philae drifting across the comet
"Some light contrast enhancements have been made to emphasise certain features and to bring out features in the shadowed areas. In reality, the comet is extremely dark ­– blacker than coal. The images, taken in black-and-white, are grey-scaled according to the relative brightness of the features observed, which depends on local illumination conditions, surface characteristics and composition of the given area."

http://www.esa.int/Our_Activities/Space_Science/Rosetta/High...

Pinckney··on Caltech professor claims Israeli spy infiltrated JPL
The allegation that Dr. Gat was a spy seems to be sensationalism on the part of the Pasadena Star. One doesn't need to be a spy to violate ITAR.

The most substantial allegations against Dr. Gat are that he shared data with his adviser. It's quite easy to imagine a young researcher viewing ITAR as a dumb American law which inhibits collaboration, and deciding to continue sharing preprints and collaborating with colleagues abroad as though he were still in Israel. And why not? He doesn't seem to have been working on a project with obvious military potential, and is from an allied country. ITAR prosecutions against professors are extremely rare.

Pinckney··on Rosetta comet landing – live stream
The comic references the problems with the cold gas thrusters, so it is not all pre-drawn.
Pinckney··on Lasers to enable fuel-efficient, supersonic space travel
The press release is much clearer.

http://www.osa.org/en-us/about_osa/newsroom/news_releases/20...

I haven't read the paper, but it appears they're proposing to use the ablative lasers only to shape the flow of supersonic gas through a thruster nozzle.

Pinckney··on Orbital Sciences Antares rocket explodes after liftoff
Antares has a maximum payload of 6000kg. This is roughly the same as the launch mass of the Apollo command module, which weighed 5500kg. To rescue the command module in an emergency, Apollo missions had a 4200kg launch escape system. So we might expect a escape rocket to cost Antares almost half of its payload capacity.

Furthermore, adding a launch escape system would mean adding parachutes and flotation to a payload which otherwise doesn't need it.

Pinckney··on Amazon just told me to log into someone else's account – and delete it
Why not just set up a filter to delete them?
Pinckney··on Lead poisoning is a major threat at America’s shooting ranges
Interesting article. Ventilation is one of several reasons I strongly prefer shooting at outdoor ranges.
Pinckney··on The Space Shuttle’s Controversial Launch Abort Plan
Still not as crazy as the planned Lunar Escape Systems.

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

"There was no mass or power available in the LESS for an Inertial Measurement Unit to measure acceleration and tell the astronauts where they were, where they were going or how fast they would be getting there, or even for a radar altimeter to show altitude above the lunar surface."

Pinckney··on Marijuana Law Mayhem Splits U.S. In Two as Travelers Get Busted
Concealed carry has nothing to do with it. You don't need a CC permit to take advantage of the FOPA safe passage provisions, and FOPA won't protect you if you're carrying on your person even if you have a CC permit valid at the endpoints. The firearms and ammunition need to be unloaded and not readily accessible from the passenger compartment.
Pinckney··on Pilot lands faulty fighter jet on a stool at sea [video]
http://www.youtube.com/watch?v=XmZC5uaw69s
Pinckney··on Captchas are Becoming Ridiculous
That's not really a problem with recaptcha so much as the integration with the rest of the site.
Pinckney··on Captchas are Becoming Ridiculous
The problem isn't captchas, but users not understanding how to interact with them. So what if a few are bad? Hammer out best guesses, fast as you can, until you're successful. It's not as if you're graded on accuracy. There is no reason to ever resort to the refresh button,

Out of curiosity, I went and opened the demo page (https://www.google.com/recaptcha/demo/ajax) in a new incognito window and timed myself. I can do about 8/minute at maybe 90% accuracy.

Captchas are only a problem if you compulsively refresh in hopes of getting something clear.

Pinckney··on How Many People Are Wrongly Convicted? Researchers Do the Math
I honestly find the idea of spending decades of my life in a prison facing daily verbal and physical abuse from guards and inmates to be far more terrifying than death.

No, you can't un-execute somebody, but you can't give someone years of their life back, either.

Pinckney··on Larry Page: I’d Rather Leave My Billions to Elon Musk Than to Charity
>Going to Mars to backup humanity has the real, bona-fide potential to save more lives than any amount of Earth charity;

I really find this morality baffling. As I see it extinction level event would be a tragedy on account of the deaths of billions. But the human species, as a whole, is not an individual; it does not think or feel or suffer. Its cessation has no moral value beyond the death of the individuals which make it up.

I'm open to hearing an argument to the contrary; usually discussions of space colonization, it's assumed obvious that perpetuating humanity is important. But I don't see it, and so I tend to view anything that helps actual individuals as a better use of resources.

← PreviousPage 9 of 13Next →