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Comment: No, this isn't even published. (Score 4, Informative) 247

by imjustmatthew (#45877445) Attached to: Is Earth Weighed Down By Dark Matter?

No, this research wasn't even published, it's a conference talk and a PR release. Go read the actual link, at the bottom of the long post, where Matthew Francis dishes it out. Here it is again in case you missed it:

http://galileospendulum.org/2014/01/02/no-dark-matter-is-not-messing-up-gps-measurements/

Comment: Re:Looks like Aruba mesh network with Airwave (Score 2) 107

by imjustmatthew (#45377221) Attached to: Seattle PD Mum On Tracking By Its New Wi-Fi Mesh Network

I wonder if it would be possible to configure the phone's wifi to remain passive until it detects the beacon from a known access point?

Full disclosure: I'm not very familiar with the physical layer of 802.11 networks, please point out if this is impossible.

Comment: Re:Wrong demographic (Score 2) 113

by imjustmatthew (#44143373) Attached to: Australian Air Force's Recruiting Puzzle Shown To Be Unsolvable

A good engineer would know how to load the problem into Matlab (or whatever symbolic solver engineers use), and lean back while it computes the answer.

This. Most of what I'll -- for lack of a better term -- call applications engineering is done this way. You learn the math in high school and college so you understand the problems, not so you can solve them in your head. Even in research fields it's unusual to solve equations of this size by hand.

Comment: Re:Forget about how long it takes, what's the ENER (Score 5, Insightful) 303

by imjustmatthew (#40511311) Attached to: Making Saltwater Drinkable With Graphene

Figure 8 on Page 6 of the actual paper shows what they're measuring. They're comparing filter materials by Salt rejection % vs Water permeability measured in L/cm2/day/MPa. That unit incorporates all the energy-efficeny goodness you want in a filter without looking at what pump technology is actually used to provide the energy input. It says that more filtered water (L) per square centimeter of filter (/cm2) per day (/day) per MegaPascal of pressure (/MPa, the energy input) is more good. Assuming any particular pump technology would give you a number for MPa/MJ that you could apply, but it doesn't help you understadn the performance of the filter itself. The figure for improvement vs existing technology they actually give is 2-3 orders of magnitude (100-1000x) so TFS is taking the optimistic side.

The bottom line is that this has a huge potential but is still a ways from practical application.

Comment: Re:Password input is too simple (Score 1) 454

by imjustmatthew (#40260291) Attached to: How Many Seconds Would It Take To Crack Your Password?

I'm not sure this would work from the perspective of intentionally including it; but I think it would be an interesting way to "flag" accounts for extra verification. People have different typing styles and your natural timing of entry for a password should be computable from logins over time. If the entry is significantly off it can be a yellow flag to indicate that maybe it isn't you entering the password. Combine that with some other factors (e.g. IP history, user agent strings) and you could perhaps identify accounts that are likely compromised and require an extra verification step.

I don't really have time to work this out and try it, but it'd be very interesting to try.

Comment: Re:Anti-nuclear publication (Score 5, Insightful) 140

Do note that the "Bulletin of the Atomic Scientists" is a generally an anti-nuclear, scare-mongering publication. These are the people whose count-down to nuclear disaster has been just a few minutes before midnight for decades. Whatever they publish should be viewed with this in mind.

As a strong supporter of nuclear power I feel this attitude is exactly what makes it so easy to scare up opposition to nuclear power. That article was extremely well written and researched. IMO it presented a fairly balanced view of the existing studies and the overall challenges to new research and regulation. Yes their are concerns about low and protracted doses, and yes the industry has tried to downplay and bury that research. Just like the "green power" industry doesn't want anyone to look at the lifecycle costs on those PV cells and LiPo batteries.

The only way to stop fear mongering and get new power plants is with open and honest research - not making attacks on an article that tries to present the facts.

Comment: Sounds like a solid plan (Score 1) 155

by imjustmatthew (#39052645) Attached to: Buy an Elite HP PC, Get Your Own Support Staffer

Personally, I think this is a great plan. I'm not sure it'll make me buy an HP instead of a computer from system76, but it's definitely a great idea.

That said, my last call to HP tech support for one of my IPS monitors went pretty well once I got past the first 2 levels of non-English-speaking drones, and their actual rep who came out to my house with the replacement display was fantastic. No dumb questions, good communication, and fast replacement service.

Comment: Re:Maybe (Score 1) 113

by imjustmatthew (#39036147) Attached to: Ask Slashdot: Smartest Way To Transfer an Old Domain/Site?

Also I’d personally like to thank you for asking a question that is:

- non-trivial
- can benefit from the vast amount of diversity and experience within the slashdot crowd
- will probably generate interesting stories
- and most importantly, isn’t depressing as hell nor a reminder that everything is falling apart in our industry

This is what "ask slashdot" could be! We really need more of this!

This is so true. I'm glad to see the first ask slashdot in a long time where I'll be reading the all the comments at 0 without having any mod points.

Comment: Re:forgivness (Score 2) 190

by imjustmatthew (#39004953) Attached to: Wikipedia Hasn't Forgiven GoDaddy

Our current options are a twatwaffle who hasn't even read the fucking Constitution, versus a pretty terrible businessman who hasn't read the Constitution, a Theocratic frothy mixture of lube and fecal material who makes the Ayatollah look like an Atheist, and a douchebag that was kicked out of Congress. There's a slim chance we might get the chance for a crazy old guy who's read the Constitution and therefore will accomplish nothing, because by virtue of understanding the actual powers granted to the Federal government, he scares the fuck out of both Democraps and Republicunts.

That, sir, is the best description of candidates I've read yet.

Comment: Re:This is news? (Score 2) 118

by imjustmatthew (#38944745) Attached to: Google Starts Running Fiber In Kansas City

Gigabit fiber from Verizon? No, I didn't think so.

FWIW, I have Verizon FiOS here, and it's nicer than anything else in the area, but it doesn't hold a candle to what a real high speed connection could look like from Google. Especially since Google owns so much of it's own long-distance backbone, I'm betting their local fiber is going to be wired up pretty well to the rest of the internet tubes.

Comment: Re:Guns (Score 1) 262

The difference between a military and a militia is training. Yes, tanks and big guns are extremely easy to fire, but do you know how to work together with others to use those weapons to launch a coordinated assault? Have you practiced and trained until you can work with your squad to clear a building without thinking about it?

This is what has fundamentally changed in the American military since Vietnam, we have fully changed from a loose organization of mostly short-term enlistees, draftees, and officers to a core of professional soldiers who will spend 20+ years in the service, and you know what, it works like a sonofabitch. It raises even the average private in the US army to a level 10, 100 times higher than the members of your militia because they can work together as a team. One on one your militia of hunters and private citizens might do alright, but you don't get any bonus from having them together. If I take a bunch of guys from a military unit the whole is going to be much more effective than if they fought individually.

Training is expensive and time consuming - your militia will never have the time or the money to train the way a regular army can.

"Any excuse will serve a tyrant." -- Aesop

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