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Comment Re: So the real cost is (Score 1) 110

Why are you adding the $33 to the $60? Normally, the rates that utilities charge include the costs of capital (loan/bond payback and interest) in addition to the cost of the service. IOW, the $60 rate should already include the $33 bond payback (+ interest). Is there evidence this is not the case here?

Comment Re:Very misleading headline (Score 2) 119

What I find odd is Square wasn't discriminating against White as a person. He's free to sign up and use the service. He just can't sell bankruptcy services.

This is the argument Square made (that their policy "applies not to people, but to transactions"), but it's worth noting that their policy in fact does not say "bankruptcy services," it literally says "bankruptcy attorneys." (see the link in the summary)

Most of the rest of the list is about actual "goods and services." The wording for that one item would be easy to fix to be like the rest if they wanted to.

Comment Re:A boon for technical searches (Score 1) 329

This is one area where Google's search algorithm falls down [...] I wish there was the option for a decay (or timeout) function into their page-rank algorithms to reward contemporary information.

Look to the left of the search results. See the "Search Options" thing? Open that and you can restrict results by date range (and a number of other things).

I never noticed those options until someone pointed them out to me recently. I guess if you've been using something simple for a decade, at some point you stop looking for new things about it. But now I'm amazed all over again. For example, do a timeline search on Google for "New Orleans" and see the peaks around the Civil War and War of 1812, then click and read historical articles from those periods in the NYT.

Tying this back to the original article, I personally think it's awesome that the Internet appears to "remember" stuff from before it was built. Getting articles from 1861 in your search results is just trippy, so hats off to Google and the Times.

Comment Re:Iron Man's Suit Defies Physics -- Mostly (Score 2, Interesting) 279

Hydrogen peroxide powered rocket packs fly for around 30 seconds, because they have a specific impulse of around 125, meaning that one pound of propellant can make 125 pound-seconds of thrust, meaning that it takes about two pounds of propellant for every second you are in the air. Mass ratios are low for anything strapped to a human, so the exponential nature of the rocket equation can be safely ignored.

A pretty hot (both literally and figuratively) bipropellant rocket could manage about twice the specific impulse, and you could carry somewhat heavier tanks, but two minutes of flight on a rocket pack is probably about the upper limit with conventional propellants.

However, an actual jet pack that used atmospheric oxygen could have an Isp ten times higher, allowing theoretical flights of fifteen minutes or so. Here, it really is a matter of technical development, since jet engines have thrust to weight ratios too low to make it practical. There is movement on this technical front, but it will still take a while.

John Carmack

Comment Start slow, start small, stick with it (Score 3, Insightful) 282

I was in a similar situation when I got out of college. I had a lot of theoretical training in college and wanted to get my hands bloody. I was coding at work, but it was odd embedded stuff and I wanted some different experiences to "cleanse the palate". I ended up doing work for two projects: Vim and Mozilla. I chose these projects for two reasons: I liked what they did, and they had lots of room for additional coders.

Vim was sort of a dive-right-in situation. Bram maintains a vast TODO list that ships with every version of the product. I spent a while reading it, picked out a couple things that seemed like they ought to be easy, and got to work. I joined vim-dev and mailed out patches. I didn't do a ton for the app, but I got a few things in.

Mozilla was a different beast in many ways. It was a much more structured environment due to the review process and the presence of Netscape. Also, it was in C++ (which I barely even knew, thanks to some shoddy university training), and not just any C++, but XPCOM. At first I was intimidated by the size of the code and not knowing where to start, so I didn't even touch the code. I spent several months just sitting in #mozillazine and triaging bugs. I dup'd, I closed, I changed to NEW, all that good stuff. Through this, I achieved two important things: I got a much better sense of how the product worked, and I met some of the players involved through IRC contact. By this time I was sitting on #mozilla as well, but I never said a word.

Eventually, I downloaded the code and bought a copy of Don Box's "Understanding COM" for background reading (that book is amazing). From all the time spent triaging, I knew some of the areas where bugs were piling up and nobody was looking at them, so I started there. I submitted a few small patches, had them reviewed, had people check them in for me. The reviews were harsh sometimes, but I was learning a lot. Eventually I moved around a bit and took on larger fixes.

I did this for a year or so before I got too busy with work and dropped out of sight. To this day it was some of the most fun I've had as a coder. For all its flaws (in those days, Firefox was still "m/b", and Netscape ran the show), it was a great project, and some of the people who worked on it were the best programmers I've ever worked with.

So, my advice: start slow, start small. Figure out who you can ask for advice about something. Look for other (non-coding) ways you can help out that will help you get familiar with what's going on. It's worth it.

Technology

Computers Outperform Humans at Recognizing Faces 183

seven of five writes "According to the recent Face Recognition Grand Challenge, The match up of face-recognition algorithms showed that machine recognition of human individuals has improved tenfold since 2002 and a hundredfold since 1995. 'Among other advantages, 3-D facial recognition identifies individuals by exploiting distinctive features of a human face's surface--for instance, the curves of the eye sockets, nose, and chin, which are where tissue and bone are most apparent and which don't change over time. Furthermore, Phillips says, "changes in illumination have adversely affected face-recognition performance from still images. But the shape of a face isn't affected by changes in illumination." Hence, 3-D face recognition might even be used in near-dark conditions.'"
Space

Astronomers Again Baffled by Solar Observations 299

SteakNShake writes "Once again professional astronomers are struggling to understand observations of the sun. ScienceDaily reports that a team from Saint Andrew's University announced that the sun's magnetic fields dominate the behavior of the corona via a mechanism dubbed the 'solar skeleton.' Computer models continue to be built to mimic the observed behavior of the sun in terms of magnetic fields but apparently the ball is still being dropped; no mention in the announcement is made of the electric fields that must be the cause of the observed magnetic fields. Also conspicuously absent from the press releases is the conclusion that the sun's corona is so-dominated by electric and magnetic fields because it is a plasma. In light of past and present research revealing the electrical nature of the universe, this kind of crippling ignorance among professional astrophysicists is astonishing."
Patents

New Patent Suit Threatens Bluetooth Standard 61

Aditi.Tuteja writes "A U.S. research institute has sued Nokia, Samsung Electronics and Matsushita-owned Panasonic for violating a patent on Bluetooth technology, potentially putting the free wireless standard at risk. The Washington Research Foundation, which markets technology from the University of Washington, is seeking damages from the three mobile-phone makers for using a radio frequency receiver technology without paying royalties. From the article: 'According to the lawsuit, Bluetooth-based computers, cell phones and headsets made by the companies have violated four patents for research done in the mid-1990s by Edwin Suominen when he was a student at the University of Washington. All four patents are now licensed by the Washington Research Foundation. The foundation's lead counsel on the case, Steven Lisa, said the court filing followed two years of informal attempts to resolve the issue with the major players in the industry.'"
User Journal

Journal Journal: USA: Military Draft System To Be Tested 6

WASHINGTON, Dec. 22, 2006(CBS/AP) The Selective Service System is making plans to test its draft machinery in case Congress and President Bush need it, even though the White House says it doesn't want to bring back the draft.

The agency is planning a comprehensive test -- not run since 1998 -- of its military draft systems, a Selective Service official said. The test itself would not likely occur until 2009.

User Journal

Journal Journal: AP: Congress rebukes FBI's Okla. City probe - Told Ya' So!!

By JOHN SOLOMON, Associated Press Writer 47 minutes ago

The FBI failed to fully investigate information suggesting other suspects may have helped Timothy McVeigh and Terry Nichols with the 1995 Oklahoma City bombing, allowing questions to linger more than a decade after the deadly attack, a congressional inquiry concludes.

Comment O/T reply (Re:comments...) (Score 1) 575

Thanks for the note. I do have e-mail notification turned on for replies to my comments, at a much lower threshold than +3. :)

My browsing at +3 is not an indication of my "faith in the moderation system" so much as it is an indication of my limited time. I can only afford to read these comments in so much depth. When I get really interested in a thread, I turn down the threshold to take a closer look.

I actually skimmed these comments at a threshold of 0. I did miss your posted corrections from John (sorry!), but that's only because there were >400 comments and I was moving pretty fast.

There is an eternal tradeoff between efficiency and fidelity. In medicine, we refer to the tradeoff between sensitivity (finding something important) and specificity (not finding something unimportant). It's kind of the same here, and I have chosen specificity over sensitivity.

I'll contact John.

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