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ISIS Bans Math and Social Studies For Children

butalearner Re:they will defeat themselves (950 comments)

The only problem is we still need their damn oil. Please, Elon Musk, save us from dependence on these assholes' oil. The sooner we can find a replacement for middle eastern oil and/or their oil runs out, the better.

Just to give some numbers, here is where we (the U.S.) got our oil in 2013:

U.S.: 2,720 million barrels
Canada: 1,147 million barrels
Saudi Arabia: 485 million barrels (OPEC)
Mexico: 335 million barrels
Venezuela: 294 million barrels (OPEC)
Russia: 168 million barrels
Columbia: 142 million barrels
Iraq: 124 million barrels (OPEC)
Kuwait: 119 million barrels (OPEC)
Nigeria: 103 million barrels (OPEC)
Ecuador: 86 million barrels (OPEC)
Angola: 79 million barrels (OPEC)
Brazil: 55 million barrels
U.K.: 54 million barrels
Other OPEC: 67 million barrels
Other non-OPEC: 338 million barrels

Ignoring the type of oil (pretty sure we're exporting natural gas like a fiend right now due to fracking), we need to cut 21% to get away from OPEC altogether, or 12% just to get away from the Middle East. In the U.S., 47% of oil goes to gasoline, 20% to diesel and other fuel oil, 13% to liquefied petroleum gases like propane and such, and 8% for jet fuel. All this info is from eia.gov, by the way.

So it while it is still an enormous problem, it's not insurmountable. In fact, it's inevitable. We won't go cold turkey, but we will almost certainly keep chipping away at that deficit with continued efficiency improvements on cars and other vehicles, growing emphasis placed on fuel efficiency, and continued improvements in domestic oil production and refining. Ideally the cleaner improvements will come fast enough that we don't have to rely on the latter, but it'll happen sooner or later.

4 days ago
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Apple Edits iPhone 6's Protruding Camera Out of Official Photos

butalearner Re:Parallax. (424 comments)

No, the phone is shown at exactly right angles, and they're right, the lens is photoshopped out. Meanwhile, it's 1 mm. What is that, the thickness of 2 business cards?

Not that it matters anyway. Everyone I know that has a recent phone has a big fat case to protect it.

5 days ago
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X-Class Solar Flare Coming Friday

butalearner Physics (145 comments)

Flares are bursts of energy, so they travel at the speed of light -- there's no real early warning for 'em, as by the time you see it, it's here. (there might be a slight warning before you hit the peak of the flare, but we're talking seconds, not days).

The CME is what's coming on Friday ... Coronal *Mass* Ejection ... ie, it's more than just an electro-magnetic pulse ... it actually has mass associated with it.

You might also get some SEP (solar energetic particles) before the main sort of 'cloud' from the CME arrives -- those can be worse for the people in space, as they arrive minutes to hours after the flare, and they'll just go through things in space (eg, spacecraft, space stations, etc.).

disclaimer : I'm not a solar physicist, but I'm a programmer/sysadmin supporting the Solar Data Analysis Center at GSFC.

If the flare was pretty much a direct hit, are we still going to be in the way if it takes 2-3 days for the CME particles to reach us? With a radial velocity of 30 km/s, the Earth will have moved several million kilometers away from the point where the flare struck. I know the Sun rotates in the same direction (~24 day period) as the Earth orbits (~365 day period), though, so maybe that imparts just the right amount of radial velocity.

about two weeks ago
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Tesla Plans To Power Its Gigafactory With Renewables Alone

butalearner Re:No, that's not what it says (260 comments)

No, that's not what it says. It says it will be net-zero. That's a big difference.

This plant will be grid-connected. It will simply produce as much energy as it uses. Not all the time, not 24 hours.

So they will be drawing power from Fossil fueled Electric plants just like the rest of us. So much for carbon emissions being ZERO.

You're going to have to explain to slow people like myself. Where is the following logic wrong?

Tesla is going to produce, on average, enough energy to run the gigafactory without getting any externally-created electricity. In reality, sometimes Tesla will not create enough energy, so it will draw from the grid. On the other hand, sometimes it will produce too much, and that goes back to the grid, where it is used elsewhere. The energy used elsewhere is used instead of fossil fuel-produced energy. Therefore, effectively, carbon emissions from energy production will be zero (though, as you say, their equipment will produce produce greenhouse gases).

Anyway, I don't get why this should be disappointing to anybody. It sounds like awesome news to me; if everybody did this, we would be a lot better off.

Lastly, I found it quite interesting that 85 windmills in Reno could produce more than twice the energy of 850,000 square meters of fixed solar panels...and it would be more if wind speeds were slightly higher. That seems crazy to me.

about two weeks ago
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Twitpic Shutting Down Over Trademark Dispute

butalearner Re:Inevitable (81 comments)

The guy who owns it (It's a small self-funded business) should have seen the writing on the wall and taken the $10M he was offered years ago. I suspect when twitter tightened their grip twitpic's revenue, profit and users dissipated. In it's heyday it was allegedly making ~$700K a year.

He claims they were making $1.5 million a year, actually. I could see why it might be tough to sell out if that's true.

about two weeks ago
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E-Books On a $20 Cell Phone

butalearner Re:Seriously? (116 comments)

I used to read on a Droid Eris (2009 phone with a 3.2" screen), and it was perfectly fine for my purposes. Well, not for the Kindle app. That worked very slowly at first, then they "upgraded" it and it was unusable. Aldiko worked and looked great, though. In fact, that was pretty much all that phone was used for after a while, since it wasn't connected to any cell phone service. With it on airplane mode, the wifi off, and the brightness at minimum, the battery would last several days. I've since graduated to an old Droid Incredible with a 3.7" screen, which felt huge at first. Put the latest Cyanogenmod on there with the same settings, install Aldiko, and you're golden.

Granted, I couldn't imagine using a 3.2" screen if I needed a larger font, and my Nook Touch is a whole lot more pleasant, but the phone is easier to carry around, so I ended up reading on it more often than the e-reader. The only bad part is losing your place; it's difficult to control the little slider to get back to where you were even on large screens...on the tiny screens it's painful.

about three weeks ago
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Ask Slashdot: the State of Free Video Editing Tools?

butalearner Re:Blender (163 comments)

blender is good for video editing, but there's no way on earth that you could call it initutive. The quirky UI takes a steep learning curve.

This is definitely true of their modeling UI, but I found the video editor quite intuitive, and my last video editing experience before that was several years prior, Adobe Premiere 2.0 or so. With only the tooltips, I quickly figured out various helpful keyboard shortcuts without referring to a tutorial or cheatsheet or anything. The only thing that tripped me up a bit was how to change the output settings (you have to go back to the Scene view/window/whatever it's called in Blender parlance).

about three weeks ago
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Reported iCloud Hack Leaks Hundreds of Private Celebrity Photos

butalearner Re:Where are these photos? (336 comments)

That being said, those that choose to enjoy someone being taken advantage of, and snickering about it... that's the definition of sociopath.

Actually, that's more like schadenfreude. It does not take a personality disorder to dislike a famous person. It might not be a reasonable dislike, if it's due to jealousy of their wealth or looks or what have you, but it's not sociopathy. And given the reasonable expectation that these celebrities' exposure will almost certainly garner sympathy for them and improve their careers, their temporary anger and mortification doesn't even seem like that high a price, when the one feeling the schadenfreude is struggling to make ends meet, or has had people making fun of their looks since middle school.

Not saying I agree, but I can understand the point of view.

At any rate, the damage has been done, and trying to stop people from looking is an exercise in futility and madness. Appealing to people's sense of morality or social justice might work for a few people, but it's not going to make any of the victims feel better, or make people check their security settings. It's not going to give NSA an "in" on spying, either. It makes far more sense to raise awareness for the sharing/security settings on phones and other devices, and push handset makers and backup solution vendors for sensible defaults, including encryption. Between social engineering, physical theft, and spurned ex's we probably won't stop this sort of thing from happening entirely, but we can make it a whole lot more difficult.

about three weeks ago
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Astronomers Find What May Be the Closest Exoplanet So Far

butalearner Re:OK Another one (89 comments)

Venus near the surface, is hotter than the sun-side of Mercury (by our estimates).

Two words: cloud city.

Sounds preposterous, I know, but it's almost certainly easier than colonizing the first completely habitable earth-like exoplanet (and the article actually makes it sound more plausible than the name implies). That's not to say we should stop looking for them, of course...far from it. Those are the best chance we have to find extraterrestrial life, intelligent or otherwise.

about three weeks ago
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33 Months In Prison For Recording a Movie In a Theater

butalearner Re:The real crime here (465 comments)

The important point, I believe, is that incarceration shouldn't be the first response for non-violent criminals. Which makes a whole goddamn lot of sense, the massive snark in the comments here notwithstanding. Yeah, we might end up having to incarcerate some, or maybe even a majority of them, but I guarantee you we end up with less overburdened prisons and more tax-paying, productive members of society.

As for the guy headed to prison for almost 3 years, he should've been hit with fines and/or wage garnishment the first time they caught him. If he kept it up after that, that's when you start hitting him with heavier fines, community service, confiscating tech, computer restrictions, etc. Wage garnishment need not be as draconian as some of the other commenters have said. They know they have to make it worthwhile for the person to work. Yeah, he might quit his job and refuse to get a new one and end up in jail anyway, but he might not, and that would be better for everybody.

about a month ago
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Why the Public Library Beats Amazon

butalearner Re:Libraries are one thing Amazon is not (165 comments)

But libraries already have floating e-book licenses you can check out for downloadable content (including off hours) in addition to everything else they offer.

My daughter volunteered at the local library this summer teaching younger kids to read. In theory some semblance of this "could" be done over the Internet, but I just don't see it actually happening, and it wouldn't be the same.

Just so. In fact, these days it seems like libraries are more about being community centers than a place to borrow books. Where I live now it's not quite as noticeable, but in my previous city there was always a line to get on the computers, but hardly anybody browsing the stacks.

My library hosts story time for kids, book/movie/anime clubs, beginner PC classes (typing, office software), board game nights, arts and crafts for kids, arts and crafts for adults...all free. During tax time, they have all the forms and information you might need, and they provide information sessions and classes on free e-filing. They also host paid events; recently they had a LEGO exhibit with competitions for kids and open build time, and a Tor editor and author Q&A session where they critiqued the first couple pages of attendees' stories. Granted these things could be hosted elsewhere, but being at the library makes it more likely that I'll hear about it and far more likely that I'll go.

Also, my library also gives me access to subscription sites, including ebook and audiobook sites. I can pay $100 per year to subscribe to ancestry.com, or I could go to my library. I can pay $260 to get lifetime access to a single language on RocketLanguages, or I could go to my library and get access to every course on every language they have for free. While the interface isn't as slick as Duolingo, there are more languages available and it just feels like a better way for me to learn.

And of course there are the books themselves. My city has a pretty solid collection of sci-fi/fantasy, though it's not quite as exhaustive as my previous city. One nice thing they do here is try to have plenty of copies of the first books in a series, something that was a big annoyance before. I can't remember how many times I saw an interesting book while browsing, only to find out it is a sequel and I'd have to request the first one. I could also check out e-readers themselves, something that is relatively new both here and my last city.

TL;DR: you might replace one single aspect of libraries with something like Kindle Unlimited (and poorly at that), but that's not all libraries provide. Not by a long shot.

about a month ago
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Android Motorcycle Helmet/HUD Gains Funding

butalearner Re:Long overdue... (126 comments)

There are at least four things a driver might legitimately want to see on a HUD. Speedo, Tacho, Navigation (no map is necessary, but the distance to and direction of the next turn are nice) and radio controls. All of these are things you will regularly want to look at while driving. I'd skip the last one, I can tune my radio by ear since I don't actually listen to broadcast radio, but the other three are all things I'd very much like to have.

I'd like to see (and I think this is where things are going) displays that combine or simplify information from sensors.

My car should basically build a mini-map of vehicles around me, potential dangers, and so on. I don't need to see it on the HUD, but perhaps just arrows (color-coded and/or faded with distance) pointing to other cars in case I don't see them. Arrows toward nearby emergency vehicles would be helpful, too, since I can never tell what direction the siren comes from. It should estimate braking distance and monitor driving conditions, and warn me if I'm too close to the car in front or behind me, or if I'm getting too close to anything beside me. That's combining knowledge of the vehicle (weight and braking info), GPS, cameras/range sensors, and current weather information.

I would like performance displays as well. Checking the tach and speedometer is all well and good, but I like to keep an eye on efficiency gauges when the car I'm driving supports it. More to the point, I'd like my car to tell me how fuel efficiency might change if I sped up or slowed down, being mindful of course about the speed limit. I'm picturing a HUD showing a small slice of an estimated efficiency curve with a marker for the speed limit. Maybe a fancier version would take into account information about the terrain and surrounding vehicles to somehow suggest optimal speeds for efficiency and safety. I want my car to notice when efficiency doesn't meet expectations, too, and tell me if tire pressure is off nominal, the car weighs more than expected, and so on.

Lastly, I want to be able to bring up lots of information on startup that disappears when I'm moving or in gear. I want to know how approximately how many miles I have until empty, how my car's fluids are doing (including things like oil purity, not just level), how my car's my battery, tires, brake pads, air filter and so on are doing, safety information (everybody is buckled up, emergency break is off, lights are on if not automatic), and so on.

about a month ago
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Ask Slashdot: What To Do About the Sorry State of FOSS Documentation?

butalearner Re:So fix it (430 comments)

Or, for the less altruistic out there, write tutorials, put them on your own blog and youtube, link them from the project's wiki in a reasonable, completely non-spammy way (e.g. copy the content, attribute it to your blog with a clearly marked external link), and make a dollar or two from advertising.

Or, if you have the money to spend, offer a bounty.

about a month and a half ago
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Vint Cerf on Why Programmers Don't Join the ACM

butalearner Re:where's the money?! (213 comments)

I am a long time member of the ACM, and I've always thought the value for money was excellent. I'm not an academic and I don't go to conferences. The Safari and 24/7 Books Online subscriptions, plus the skillsoft training is where I see most of the value.

That's good to know for future reference, though every company I've worked for has offered those things to its employees and contractors.

about 2 months ago
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Man Booted From Southwest Flight and Threatened With Arrest After Critical Tweet

butalearner Re:Damn I used to like southwest (928 comments)

I get the impression that you have about equal chances of getting a rude gate agent no matter what airlines you fly with. Which is to say they're almost all reasonable people, but sometimes have bad days, other times it depends more on how you ask. The guy here seems to have an entitlement. He's a frequent flyer, his kids aren't, he was asking if they could get on with him in the early boarding. He could have paid the early check-in fee for them and gotten on before most people anyway. I think it's $15 on southwest. Point is, he had other options. It's fine to ask for favors, but if you're fuming about someone NOT granting you a favor, you're probably the asshole in that situation.

I posted this above, but in my experience, when Southwest announces boarding procedures, they almost always include a special perk for families traveling together that they can board with the family member that has the lowest ticket. This might not be fair, but it is something they have always done in the past both in my experience and the guy in the article's experience. Now the guy was probably upset and embarrassed, so it's entirely possible he wasn't entirely honest about how rude the attendant really was, but I want to be sure the part about family boarding is clear.

about 2 months ago
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Man Booted From Southwest Flight and Threatened With Arrest After Critical Tweet

butalearner Re:Damn I used to like southwest (928 comments)

Really? Here's a tip: next time you have an A ticket and your family has B tickets and you all want to sit together, why don't you slip back into the B group.

I don't quite follow your logic there. To sit together, families should...wait until more people get on the plane? Young children aren't allowed to sit alone, so if the aisles and windows filled up, someone would have to move so they can sit together. And that's not to mention a higher chance of small children getting angry and loud in the jetway because it takes a long time to board the plane, etc. I know Slashdot can be fairly hostile to people with kids, but giving families the ability to cut ahead of others is really in everybody's best interests. Give me generally annoyed Slashdot posts well after the fact over kids whining or crying in a stuffy aircraft cabin any day.

Regardless, it was a perk that Southwest offered to families that we and the guy in TFA expected to receive but, apparently, certain employees do not offer. I'm fairly certain they used to announce that families could board with the member who had the lowest ticket. In fact, it's been a year or so since it happened, but I'm pretty sure we asked the gate attendant on our return trip what the policy is, and they were surprised that we were told that we couldn't do so.

about 2 months ago
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Man Booted From Southwest Flight and Threatened With Arrest After Critical Tweet

butalearner Re:Damn I used to like southwest (928 comments)

After posting this, I realized that this also happened at Denver International. It's entirely possible it was the same woman...

about 2 months ago
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Man Booted From Southwest Flight and Threatened With Arrest After Critical Tweet

butalearner Re:Damn I used to like southwest (928 comments)

Southwest has gone downhill fast in recent years.

Agreed. I had the exact same experience as the guy in the article. I had a pretty low A group ticket - one of the first numbers you can get without paying extra - but my wife and kids had B group tickets. We'd flown Southwest four to six times a year for the past six years, and they always let us all board in A group when this happened (which was fairly often, since using points and free flights usually means making separate orders), except for the last time we flew with them. They tried to claim that it has always been against their policy, which was obviously BS even before I saw this story.

I know, it isn't really a huge deal since we still got seats together, but it is embarrassing and frustrating to be called out and forced to switch lines like that, so I understand the guy's lashing out on Twitter. But of course, hardly anybody would have seen the tweet until the gate attendant went way overboard in response. Now, instead of one person looking bad to a few people, the whole company looks bad to the readership of major news sites. Way to go, Kimberly.

about 2 months ago
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Will Your Next Car Be Covered In Morphing Dimples?

butalearner Re:So who did it first? MIT or Mythbusters? (138 comments)

No. Dimpling and pebbling to improve laminar flow have been known for many years by people and many hundreds of thousands of years by dolphins.

Dimpling and pebbling is there to disrupt laminar flow; to introduce a small, turbulent boundary layer in order to reduce wake drag. If you compare the streamlines of a ping pong ball to a golf ball, the flow is laminar longer around the ping pong ball, but the flow separates sooner, creating a larger wake. Here is a more thorough explanation.

That also raises the question: do the dimples really help everywhere on a car? I'd love to see some wind tunnel testing and CFD analysis of the Mythbusters' dimpled car. An 11% improvement is pretty significant, but there are lots of uncertainties: weight differences, center of mass differences, how aerodynamic the car was in the first place... I strongly suspect that, in general, it would be more helpful to only introduce dimples at strategic locations: i.e. the bumpers, undercarriage, and other body panels where the flow eventually separates.

Also, aren't dolphins pretty darn smooth?

about 2 months ago
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UEA Research Shows Oceans Vital For Possibility of Alien Life

butalearner Re:Correction (97 comments)

Pessimist. If we develop interstellar travel, even at small fractions of light speed, remain expansionistic, and avoid completely eradicating ourselves or transcending as a species we could colonize the whole friggin galaxy in only a few billion years.

Or maybe you meant "we" in a personal sense in which case yeah, barring the surprise development of feasible near-instantaneous (in ship-time of course) travel, we have absolutely no hope of visiting more than the planets in our own system and maybe those of one other star.

Pessimist. I plan to live forever as a brain in a small vat of artificial cerebrospinal fluid connected by electrodes to the controls of a tiny interstellar space ship.

about 2 months ago

Submissions

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OpenPandora sells for $1875

butalearner butalearner writes  |  more than 4 years ago

butalearner (1235200) writes "After two years of delays, the first Pandora handheld consoles are finally arriving in the hands of the thousands of patient supporters. Of course, it was only a matter of time before the Pandora made its first appearance on eBay. The auction opened at a modest $330 — the preorder price — but five days later, one of the first Pandoras in existence netted the seller a whopping $1875 after a bidding war. I'm sure we'll see a slew of copycats attempt to replicate the success of this auction."

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