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Comment I have, not worth it (Score 4, Informative) 113

Don't get me wrong, Knuth is a genius. If you need to do deep research on sorting algorithms, definitely read it. If you want to do CS research and need to learn how to read research papers, its a good start. But you aren't going to get any deep insights on how to write a good program from it. Its too academic and far too focused on deep research. And even for the topics it does cover, unless you want to do research on how to really optimize the hell out of them you're better off using tutorials written for a more practical level.

Comment Re:Not a unique situation (Score 2) 67

I bought a PC a while back which the family stopped using because they forgot their password and couldn't get in and it didn't come with media so they could recover it, obviously they never made recovery media but I'm sure lots of people don't — and of those who do, probably very many of them lose it anyway. I recovered the Admin password and ran the recovery on the hidden partition and bingo, back to factory state.

There's a shitload of people buying PCs for no good reason all the time.

Comment Re: Those who something, something (Score 1) 533

No, there isn't one. But this statement doesn't establish a clear separation of church and state. The way it has been historically interpreted by pretty much every Christian society, is that there should be a distinct secular leaders (and hierarchy under them) and religious leaders (and hierarchy under them), but they are not separate. The secular leaders have a duty to promote and spread religion, and protect it from attacks (including ideological attacks - punishing heresies etc). And the religious leaders preach that it's a religious duty to obey the [righteous] secular leaders, and bless their policies. This has been the case since Constantine, and the Greek even concocted a term for this arrangement - "symphonia of powers".

In practice, you still get a theocracy.

Comment Re:I think the answer is obvious (Score 1) 233

Reliable is more important than cheap.

You need both for uptake. The average person won't spend more than about $300 for a gadget, and they'd rather spend $100. $300 is a pretty feasible price target for a small printer with one extruder. You could sell it without a heated bed at that price, and tell people to print only in PLA. There is high-temp PLA now which can be annealed in an oven and then handle somewhat higher temperatures, so that would cover most people's needs. Do a delta since it is cheaper to make it stable and avoid backlash, and because it uses only four sensors — ideally three hall for the X Y Z_MAX, and an inductive on the Z_MIN for bed leveling. $300 is not even a challenging price point; it can be even cheaper if you skip a display, which I don't actually think is that useful if you're not installing the printer in a remote location.

Comment Re: Bad Headline (Score 1) 533

Which part of the question is loaded?

It's very blunt and straightforward: if the Trump administration follows up on any of his campaign promises wrt Muslim registry, will you assist? Yes/no?

And it's not even out of the blue. It's not like it is a deliberately concocted hypothetical scenario. It is something that Trump himself has talked about, repeatedly. It's not at all unreasonable to ask companies whether they would be involved.

Comment Re:Stupid (Score 1) 223

Your green option is completely unviable not to mention that it has the same problem that you mentioned yourself, it's similar to petroleum diesel, hello NOx and particulate emissions which are primarily the reason for this ban in the first place.

No. Politics is the reason for this ban in the first place because the NOx is a solved problem with urea injection and the particulate emissions of gasoline are more hazardous and just as prevalent as those from diesel.

Comment Re:How the fuck.... (Score 1) 223

The proliferation of gas at service stations is even higher in Oz than in Europe. I had no problem driving an gas powered Commodore from Perth to Broome, I don't see why trucks would either.
Also the really long haul trucks have much bigger tanks than the traditional ones.

Yes, but for a laden truck the question is whether it's getting high or low single-digit MPGs, so it's still an issue. The energy density of ethanol or propane is arse.

Comment Extremeism lost (Score 3, Informative) 231

Unfortunately, it looks like extremism has become more popular.

Not from where I'm sitting. From everything Trump has said and done after the election, he's actually been quite reasonable - it's Clinton supporters that have gone insane, and during the election were pulling every dirty trick possible to win. Reasonableness triumphed over extremism for once, I'm hoping it's the start of a trend.

Comment Re:I think the answer is obvious (Score 1) 233

3D printing is still fiddly, complex, error-prone, expensive and slow.

This. We could stop here but let's not, I have more to say as well.

FDM style printers (the cheapest kind) require wrapping your head around calibration, nozzle diameters, temperatures, slices, alignments, supports, bed heating, the properties of PLA / ABS and all the rest. If you're lucky you'll set the printer going and hours later your efforts will yield some crudely finished single colour part. If you're unlucky you'll come back to discover something that has skewed left, warped on its base, or turned into some dante-esque spider's web that has stuck to everything.

#1 thing that should have been done/should be done to improve 3d printer uptake is working automatic bed leveling. AFAICT (and I am about to test this theory) the best way to accomplish this is with an inductive sensor designed for iron, detecting an aluminum print bed. Aluminum is pretty much the best base anyway, since glass can break all to crap while you are removing your print job. Inductive sensors literally cost five bucks and the hardware needed to interface one which isn't already present on e.g. RAMPS literally amounts to a grand total of one voltage divider, aka two resistors. IIRC 10k and 15k are typical, but whatever it takes to get the output signal down to 5v. It doesn't even matter whether you get one which is NO or NC because the software (Marlin, in my case) can detect either type of signal with correct configuration.

The #2 thing that should have been done is more centralized sharing of print temperature settings for materials. After bed leveling, just finding working print settings is the biggest PITA. If you're not buying from someone who gives you some starting values to work with, then you have to go on a web safari quest to figure out where to start.

Way down the list, probably, is eliminating all these stupid microswitches. Hall sensors are more reliable and cost little more. Even if you have to get them on eBay, whole PCBs with a sensor mounted on them are only about twice as expensive as microswitches worth buying.

As for the single-material print job issue, this is the printer I've got, it's reasonably priced and its great sin seems to be a crap auto-leveler. I've got an inductive one in the mail. Deltas take most of the fiddly-ness out of the system at the cost of potentially dropping a hot extruder on your print job if you don't program them correctly. Which all comes back to your point... they should be set up better for the user. I am willing to do all this fooling around to get the thing working but the average user just wants to print and have something come out.

I actually don't think having a crappy-looking single-color print job come out is what keeps most people uninterested in 3d printing at all, though. I think it's really all about the PITA factor. If you offered people a machine which was both cheap and easy to use, they'd jump all over it even if it only had typical resolution and speed and was limited to a couple of materials.

Comment Re:Women read Playboy too (Score 1) 229

I wouldn't call it obligation so much as a nod to the majority of people's sexual interests, regardless of gender. Tactically it would be a way to remove all grounds for complaint by all but the most fringe and unreasonable people, whose complaints would hurt themselves much more than the organization handing out magazines.

Comment Re:Here come the science deniers (Score 1) 559

I took my last dose yesterday and the emotional component kicked in, felt like a break up. I'm starting to feel the gnarling biting from within an the desire to lash out for no apparent reason then break down sobbing. It's pretty fucked, I'm starting to shake as I type this, missing keys.

Last Monday was the worst it's been so far and sunday seems to be the calm before the storm.

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