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Comment: Re:What does that even mean (Score 1) 92

Don't count on never, this isn't kerbal space program, I don't think that would garauntee you a stable orbit. Your jump would likely be vertical, so you would see the top of the building move forward, as if you slowed down.

Pretending it is kerbal and there are no other bodies with gravity or uneven gravity etc.... your periapse would be slightly higher where you jumped, and slightly lower at the other side, where you would have a higher speed.

With the right parameters for roof size and starting height, you might have a chance at landing back on the roof after a massive 1/2 rotation jump..... I mean, its already a ridiculous structure right? Why not make it wide too?

What is a kilometer or two between thought experimenters?

Comment: Re:Link padding (Score 1) 60

by TheCarp (#49746989) Attached to: Academics Build a New Tor Client Designed To Beat the NSA

Sounds right to me, except for the assumption that link batching would necessarily increase latency. I believe tor already handles asycnronously in most cases and only rotates circuits as needed or about every 10 minutes.

So circuit creation time, generally speaking, should have little effect that the user can see (unless he requests a new circuit through a control app).

Comment: Speaking as a former yearbook adviser (Score 5, Insightful) 368

by Pollux (#49746449) Attached to: Student Photographer Threatened With Suspension For Sports Photos

This guy would be -any- yearbook adviser's dream to have. Look at his photos...they're incredible. He gets in close to his subject, captures the action vividly, and makes very good use of lighting. And for a sophomore? Simply amazing.

This district is handling the situation all wrong. Regardless of whether or not they can or cannot make a claim to the ownership of the photos, they should be lifting this young man up for the talent he has and putting him on a pedestal. Enter him into national photography competitions. Get national recognition for his work, and put the trophies in your trophy case. And make him proud of his talent. He deserves it.

Suing him? Simply ridiculous.

Comment: Re:Sysadmin FTW (Score 2) 259

by TheCarp (#49745851) Attached to: Ask Slashdot: Career Advice For an Aging Perl Developer?

I came here to say a lot of this. Especially since, as I have gotten into the devops world myself, and there is a bit of an equalizer in that a lot of the big buzzwords are things that most people have kind of similar and easily obtainable levels of experience with.

Chef hasn't been around so long that there are many people with more than a couple of years epxerience....but its also all done in ruby, which is decently easy to pick up at a basic level, especially if you know perl. You could easily get yourself up to speed, especially with any sysadmin background.

If you can make it through the level of the advanced chef courses, which, seriously, for someone who knows what they are doing we are talking, a few weeks here you could be up to speed with most candidates out there. Which isn't a dig on them at all, its just that, most of the experience from administrative work or writing, running services is directly translatable, its really just a new toolbox to get get familiar with; for someone who can already fill admin and dev shoes, its a very natural move

Comment: Re:Warning: RAID 0 (Score 1) 221

by TheCarp (#49745633) Attached to: Linux 4.0 Has a File-System Corruption Problem, RAID Users Warned

Hard to say but it will happen eventually. I have seen it go a few years, then lose 2 within a few months. Always make sure monitoring works and will alert you if its degraded. You can run degraded mode for a long time without monitoring.....till the next one fails.

They are mechanical, so manufacturing quality and environment will factor in. My drives likely see a lot of shake and heat being on the third floor of a 100 year old house, between the wind, the washing machine and seasonal heat.... its no data center in here.

Comment: Re:hmm (Score 1) 544

by Todd Knarr (#49743949) Attached to: California Senate Approves School Vaccine Bill

The problem is that other people see it as being their right to life, since we're talking about diseases that cripple or kill and not something that just gives you the sniffles. And they don't agree that you should get to decide to risk their lives because of your desire for medical self determination. Remember that we don't have to ask what things would be like if non-vaccination was common, we can look back at what they were actually like when that was the case. And it was not pretty.

Note that under the bill you can still refuse to get your kids vaccinated. You're just not going to be permitted to put the kids of parents who don't agree with you at risk because of your decision. And I suspect the kids will only be "deeply entrenched" until they get out of school and find out that having a quarter of your class consigned to braces or a wheelchair for life isn't normal. At that point your group will follow the pattern of similar groups like the Quiverful movement: having ~100% of their children reject the movement entirely. And if you want to prove me wrong, well, I'm perfectly fine with that just so long as you don't drag anyone into your experiment who doesn't agree to participate.

Comment: Re:Warning: RAID 0 (Score 1) 221

by TheCarp (#49743865) Attached to: Linux 4.0 Has a File-System Corruption Problem, RAID Users Warned

I have been running a 4 disk RAID 5 array for a few years now at home, and did a replacement upgrade a couple of years back.

Overall I find in a 4 disk scenario I lose just a bit less than one disk per year. Maybe one disk every year and a half.

So when you say RAID 0 that is 3 years old, that sounds about right. I would call such an array in serious danger of loss.

Comment: Re:Root cause = speed over security (Score 2) 71

by TheCarp (#49742945) Attached to: 'Logjam' Vulnerability Threatens Encrypted Connections

>The other reason to regenerate frequently is to limit the window of opportunity for brute force attacks, but that doesn't make much sense either:

Lets not lose sight of the fact that, even doing it only once EVER, even if you then redistribute that result to every future machine you build, is already far better than the status quo.

The current standard appears to be "use the same default ones distributed to everyone else". So really even "each unique machine generates a new set once" is a massive improvement and downgrade to the usefulness of breaking any given prime.

Comment: Re:North Pole (Score 1) 480

by TheCarp (#49742717) Attached to: The Brainteaser Elon Musk Asks New SpaceX Engineers

That was my solution too, it took longer to realize it wasn't trickier than that than it did to realize the solution.

Though the solution only works if you assume the earth is a sphere and north means the where the current pole of the planets spin is and not magnetic north. However those are pretty normal assumptions for a brain teaser.

as a gauge of how easy it is I asked my wife since, she isn't someone who has done math for fun or played 1000+ hours of kerbal..... and well her answer was "Why are you asking me this? does this have a point?" Maybe I would have gotten better data after she finished her coffee?

Comment: What manufacturer? (Score 1) 364

by Todd Knarr (#49738291) Attached to: Ask Slashdot: Best Way To Solve a Unique Networking Issue?

What manufacturer is this? When I dealt with POS interfacing with Tokheim and Gilbarco pumps (including the MPDs) all the smarts was in the controllers and the modules of our POS software that ran the pumps, card readers (Petrovend units for non-MPD stations) and RF tag hardware. The pumps were relatively dumb and only required software updates when the physical hardware was modified, and we could do the software bit while the pump was down anyway for the physical work. Most "software updates" were just changes to the database tables that told our software how to react to events and what settings to send to the pumps for mix ratios, prices and so on. Your description sounds like you've got a good chunk of the POS system actually running in the pump itself.

Comment: Re:Syntax hilighting (Score 4, Interesting) 432

by Necron69 (#49735551) Attached to: Choosing the Right IDE

Those of us who are colorblind often struggle with the default colors used in syntax highlighting. If you can (or bother to) adjust those, it can work, but colorized syntax highlighting on a white background can often be near invisible to me. It doesn't highlight at all, it HIDES the code.


ps. Colorized 'ls' - red on black? Are you out of your f*cking mind!?

Air pollution is really making us pay through the nose.