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pogden

92 karma · joined February 4, 2013

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pogden··on The Structure of Scientific Revolutions [pdf]
Unfortunately not who gets the most, though.
pogden··on The first on-orbit fuel depot has been deployed
This tanker is 35kg, so it is the smaller barge.
pogden··on 'We all suffer': why San Francisco techies hate the city they transformed
The Bay Area is absolutely worth visiting. The Computer History Museum alone is a must see if you're into that sort of thing.

The wealth inequality and housing crises don't make it a bad place to visit any more than New York, London, or any of the great cities.

People wouldn't complain about the changes in their home regions if they didn't love those places. There are many things about SF and the South Bay that make them really wonderful places: climate, natural attractions, cultural attractions, etc. And those things are very much available to tourists. The dystopia only starts when you try to find an apartment.

pogden··on The Copper Vapor Laser
Deep Reactive Ion Etching should turn up more results. For watchmaking the application would be bulk micromachining.
pogden··on Massachusetts gas fires: Another technological tragedy
Do you have a source for that number? UNHCR lists 44,400 displacements per day worldwide in 2017 [0].

[0] http://www.unhcr.org/globaltrends2017/

pogden··on Vim Clutch – A hardware pedal for improved text editing (2012)
Perhaps if it’s released before another key is pressed, the mode stays changed. If another key is pressed first, it changes back on release.
pogden··on Project Euler
Somewhere in the instructions it says that your solution should run in less than a minute on ordinary computer hardware. Sometimes it's just as interesting to make your brute force solution more performant as it is to find 'the trick.'
pogden··on Robot Is A Hijacked Word
The common thread is that robots look like people or animals. No one would call a CNC machine a 'robotic machinist' but an industrial robotic arm is still a robot because it is visually similar to a human arm.
pogden··on Nuclear-Powered Cardiac Pacemakers
It was safer than additional surgeries to replace batteries.
pogden··on OCaPIC: Programming PIC Microcontrollers in OCaml
Because Algebraic Data Types. It's bizarre that I have to give up that power when going from VHDL to C.
pogden··on Internet for All
Iridium works anywhere on earth, it's just expensive.
pogden··on A call to PHP's mt_rand generates only odd numbers
What's more common outside PHP is that functions throw errors or exceptions when given invalid input, rather that trucking along and producing output that is clearly not what was intended.
pogden··on A call to PHP's mt_rand generates only odd numbers
At least in PHP. Unfortunately in my experience the PHP documentation is not frequently read by PHP developers or even PHP internals developers. It seems to exist mainly for PHP hatebloggers, for whom it's a gold mine.

This illustrates some problems with the PHP way of doing things. For some reason the PHP internals community prefers to have this function continue to spit out garbage when given invalid inputs instead of throwing an error, especially if spitting out garbage is what was done in the past. The answer is always, "Don't do that. RTFM." but most developers don't read the documentation for each and every function that they use, but rather rely on the name of and common sense until there's a error. If there's no error, the documentation never gets read.

pogden··on A call to PHP's mt_rand generates only odd numbers
The crazy part is that, instead of throwing an error when given input that doesn't make sense, it just silently produces garbage output.
pogden··on A Serious Conversation about the Future in Space
True, but it takes a lot fewer resources to thoroughly catalog and monitor all large NEOs and divert the potentially hazardous ones. Estimates I've seen put 5km impacts at an average frequency of one every 10-100 million years range, and those are survivable. Larger impacts are even less frequent, but we can still likely divert them with existing technology.
pogden··on Megaprocessor
To be fair, it's Hardware Description Language, not Hardware Synthesis Language. HDLs are mostly tools to support V&V, it's just that synthesis is the most convenient way to ensure that an implementation is consistent with the HDL description.
pogden··on Why most popular GitHub repos are all web related?
I see. This is similar to my experience. Most software is made for people to use at work, usually semi-custom. Most software also doesn't depend on low latency or high graphics throughout, so most applications, especially new ones, are web applications. Most of the developers I know that do similar work would call themselves "web developers" though that may be required to context. Someone might identify themselves as a web developer to me, a developer in an unrelated domain, but not to a non-developer in the domain.
pogden··on Why most popular GitHub repos are all web related?
I'm curious, what communities and places do you know most of these developers from? And what sort of platforms do they work with?
pogden··on How FPGAs work, and why you'll buy one (2013)
I think the grandparent is referring to 'free as in beer.' It doesn't cost anything to tinker with programming because almost everyone already has a computer they use for other things. Not so with FPGAs.
pogden··on SpaceX's New Spin on Falcon 9
All true. The first used F9 payloads will likely be Geosynchronous communications satellites, where the smaller payload is mostly fuel for apogee kick and station keeping, and the rest is mostly off the shelf hardware.

Alternately, operators of large constellations, eg. Iridium that can replace the payload relatively quickly and cheaply. Opportunity cost can be mitigated if some of the payload is intended as on-orbit spares.

pogden··on How We Email Hardware to Space
Milling is great, but not very mass-efficient. Resisting the cutting forces involved in milling anything harder than light foam, requires a lot more structure than simply moving a deposition print head. Machinists use mass as a shorthand to talk about a machine's rigidity, with anything less than half a ton being basically a toy.

Remelting waste is possible, but this sort of high quality manufacturing is really hard, even on earth with gravity to keep material in a mold and hardly any mass or energy constraints. This, and the chip collection system add additional mass, have to be developed way before being put into orbit, and have to work extremely reliably. Even a tiny amount of swarf floating around the interior of a spacecraft could be disastrous.

We aren't focusing only on 3d printing, we're focusing first on 3d printing, because it can work today, with technology we have, on a low mass budget, and without jeopardizing the primary objectives of whatever mission includes it.

pogden··on Lytro’s Illum Is a Camera for Serious Photographers
I agree, the refocusing is somewhat gimmicky, but how would you like a 30-250mm f/2 lens that never misses focus. To me, this is where the Lytro shines. It enables you to use a lens that would be unusable with a normal sensor.
pogden··on Squirt.io – Readability Meets Spritz Speed Reading
The difference is that I can actually use Squirt.io, today. I like Spritz, but it's useless to me if I can't use it on anything but their site or the email app of the next Samsung phone.
pogden··on Microsoft please clean your store of junk
Consumers were not mentioned in the comment. The last sentence talks about "people" which in context means members of the tech press.
pogden··on T-Mobile, please fix your gateways
Really? of all my bills, T-mobile is the only one I could get set up automatically. It's beautiful. They never call me, I never call them, my phone just has internet.
pogden··on What happens if authorities seize your laptop?
Hardware keylogger.
pogden··on Where Working-Age Americans Are Moving
We can't really measure how important something is in absolute terms, only the decisions people make. There's usually a trade-off between rent and the catch-all 'amenities', and most would agree that young people are much more sensitive to these amenities.
pogden··on Computer-driven cars will convulse the automotive industry
That's the point. Like riding, directly operating a motor vehicle can be an enjoyable an rewarding experience without being a good way to get around town. Someday, I hope, driving will be reserved for purpose specific tracks, cars that are actually enjoyable to drive, and drivers who can afford to pay the unsubsidized cost of such a leisure activity. I like a good drive myself, but I'd rather let a computer handle drudgery like stop-and-go on a large freeway through LA twice a day.
pogden··on The Whitest Jobs in America
if they're illegal, they pertinent aren't counted in the BLS statistics.
pogden··on Soylent: Manufacturing Update
You could supplement Soylent with maltodextrin, rice protein and olive oil. That or cheeseburgers.

Meal frequency adjustments can be accomplished with a measuring cup.

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