39183221
submission
bluefoxlucid writes:
The Orion Drive never got off the ground primarily because, essentially, blowing up a lot of nuclear material in atmosphere is a bad idea. That means a new kind of nuclear bomb--for example, clean-pumped fusion that uses a non-fissile source to initiate chain reaction hydrogen fusion into helium with only neutrino output and no ionizing radiation or fall-out--would provide a great enabler for space flight. Unfortunately, such an awesome bomb would also provide great opportunity for military uses--and associated politics. Infinitely scalable (notably smaller) nukes with no fall-out are just conventional bombs, right? Is the promise of effective launch and space flight worth the bitter in-fighting at the UN table that would occur just for implying new research into new nukes, as well as the moral implications of greater, more deadly warfare?
38336563
submission
bluefoxlucid writes:
With Printer Steganography, we can trace any document printed on a modern color laser printer back to its printer. This is because the serial number and time of printing are encoded into the document as a series of small, yellow dots scattered about. With all the concerns about privacy flying about, we must ask the question: why no open printers? These could have multiple, RepRapable adapters for various manufacturers' drums and cartridges, avoiding the need to become an ink or toner supplier. They could also run Linux, BSD, or Minix internally, with a replaceable, open source OS. The implications of adaptability to various toner and ink cartridges is also interesting, especially for inkjets: a color inkjet that could select for Lexmark or hp cartridges with a cheap carriage replacement would foster price competition.
35379933
submission
bluefoxlucid writes:
Back in the day when you kids weren't all up in my lawn, we had "Bigfoot" style hard drives--5.25" form factor hard drives. A 5.25" circular platter would be 2.25 times as big as a 3.25". The actual platters are smaller, making the difference less striking; but then there's a spindle in the middle too, cutting away at the space on a 3.25" but not diminishing the extra space added by widening the total diameter. With Seagate getting 1TB per platter and drives hanging in bays with plenty of space around them in all but the smallest form factors, why aren't we running 5.25" hard drives and doubling the disk size?
26796536
submission
bluefoxlucid writes:
There is now this account of Patrick Meighan's arrest in LA. The LAPD were brutal and abusive. Protestors were held without bail--bail was set, but not accepted, and there was no access given to legal council. Physical violence was used by police to provoke reflexive reactions to pain, which was then reacted to with more violence. I must be missing something here, because the police seem to find peaceful protesters more dangerous than rapists and murderers.
24386326
submission
bluefoxlucid writes:
Well, it seems that JPMorgan threw $4.6M at the NYPD recently. In other news, the NYPD has arrested 700 people who were annoying JPMorgan. Just for the record, these people were blocking traffic and engaging in other dangerous stupidity on the Brooklyn Bridge; but also for the record, it seems the police guided them out there, then arrested them en masse. Most of these people got citations, so I guess $4.8M isn't a lot of money.
24100724
submission
bluefoxlucid writes:
From the article:
Navigation-and-emergency-services company OnStar is notifying its six million account holders that it will keep a complete accounting of the speed and location of OnStar-equipped vehicles, even for drivers who discontinue monthly service.
OnStar began e-mailing customers Monday about its update to the privacy policy, which grants OnStar the right to sell that GPS-derived data in an anonymized format.
Enjoy your Chevrolet.
23767256
submission
bluefoxlucid writes:
From the article, "BANNING the humble 60-watt light bulb to make way for so-called energy-saving ones and 'help save the planet' was last night exposed as an elaborate EU con." What justification could the have for such accusations? "The carbon footprint of manufacturing, distribution and disposal of a compact fluorescent bulb is far greater than the energy usage of a standard bulb." Imagine that. Complex electronics and mercury tubes are harder to make than an evacuated glass bulb with a wire in it; and reclaiming hazardous waste takes more energy than just chucking a harmless glass bulb in the standard recycling bin.
23045164
submission
bluefoxlucid writes:
Apparently cancer has been cured, by injecting people with HIV. From the article, "As the white cells killed the cancer cells, the patients experienced the fevers and aches and pains that one would expect when the body is fighting off an infection, but beyond that the side effects have been minimal." Nifty. Poorly edited run-on sentence, but nifty.
21001562
submission
bluefoxlucid writes:
A recent submission about the cost of terrorism to the economy brought a few things to mind. This article looks like a repeat of an article Bruce Schneier linked to on his blog in November, 2010 which, among other things, explains how terrorists spend $1 for every $1,000,000 of economic damage done. The Rolling Stones blames Goldman Sachs primarily for the oil and food price hikes due to speculation on futures, although I also tend to blame Monsanto for raising seed license fees while lobbying heavily for biofuels--and selling even more corn and soy seeds for ethanol and biodiesel. We also can't forget the news media, a modern circus designed to grab attention so the networks can get sponsorship money; they have a huge incentive to create panic, which only over-hypes the low risk posed by the terrorist "threat" (more of a "minor annoyance"), allowing politicians to pull the Politician's Syllogism and strip us of our rights while derailing our economy further. Does anyone work in our favor anymore?
19498918
submission
bluefoxlucid writes:
I've been learning various languages and I want to get some deep exposure. Sans-$100k employment, multiple 2 week vacations every year to various countries is untenable; therefor I have found an excellent solution: audio books and dead tree books in German, Japanese, Urdu, Russian, and the like. The only problem: I can't find such a thing. Amazon doesn't sell audio books on Amazon.de that I can find; maybe this is because my German is poor and I just can't find it. Any idea where to get audio books in other languages?
18976906
submission
bluefoxlucid writes:
Is anyone else quickly getting sick of staring at this fuzzy, overly-cartoony iteration of the Slashdot UI? The last one was fine; this one is starting to cause nausea. Overly softened, looks like a kid's site. Digg's aesthetics look much better now.
18507822
submission
bluefoxlucid writes:
The US is slated to reduce the amount of fluoride recommended for drinking water. According to WebMD, "The HHS is recommending that water supplies contain 0.7 milligrams of fluoride per liter of water, replacing the current recommended range of 0.7 to 1.2 milligrams. [...] The new HHS recommendation, Messina says, makes sense because in recent years the population has gotten more fluoride from other sources, such as toothpaste and mouthwashes. [...] Some data suggest that excess fluoride may also be linked with skeletal bone damage, she says, and possibly hormone disruption. It has also been deemed an emerging neurotoxin." Fluoride supplements are sourced directly from industrial toxic waste, which cannot safely be dumped into the environment and so instead goes into the water supply. Conspiracy theorists and crazy generals obsessed with commie plots to sap and impurify all of our precious bodily fluids are, of course, rejoicing.
18401792
submission
bluefoxlucid writes:
After almost a decade (it will be so in 9 months and some days), we still all remember 9/11. I can't for the life of me recall (or care about) the date for the Oklahoma City Bombing... in fact I can't recall anyone caring that much when it happened. Somebody blew stuff up, people died, it hit the news, there was a manhunt. It was time to demote 9/11 to this level of care back in 2005... beyond time. So why do we still remember it like a big important thing? Why do people still wave flags on September 11 of each year and claim it as a patriotic American holiday, a day of celebration, a day to applaud the stripping of our rights and the deaths of thousands? Is it time to move on? Must we actively antagonize people who make a big deal out of 9/11 until they feel foolish and give up on the whole thing?
17890342
submission
bluefoxlucid writes:
As per Wikinews, "The new policy on tuition fees will allow universities to double the current tuition fees from £3,290 per year to around £6,000 per year, as well as allowing some universities to get special approval from the Office For Fair Access (OFFA) to raise their fees to £9,000 per year." Apparently teachers were encouraging high school students to walk right out of class for this, too; I guess when you can't hope to afford college it doesn't much matter. The economics here are, of course, non-trivial; but this is a huge fee hike all at once. This has got to be the only useful thing I've actually seen televised news cover in the US in a long long int time.
16842170
submission
bluefoxlucid writes:
Before Risk, before Axis and Allies, before Pentago and Polarity and Settlers of Catan, before Dungeons and Dragons, even before Chess, there was Weiqi. Weiqi appeared somewhere around 2200BC in China, and soon spread to Korea as Baduk and Japan as Go; over 4000 years later, the game is as well known in Asia as Chess is in the rest of the world. Played by taking turns placing single, non-moving stones on a grid of 19x19 lines, the rules of Go are extremely simple; the playing of Go, however, is uniquely complex and contemplative.
Breaking with traditions, an up-front listing of resources for Go would seem appropriate. First off, the absolute best way to learn Go is to find a Go teacher and study with him; this works about as well outside of Japan as ordering Haggis in a Denny's works outside Scotland. In the English speaking world, however, Janice Kim's book series, "Learn to Play Go," is widely considered the best resource for beginning students. Sensei's Library provides an online resource for Go players in the form of a Wiki. Finally, the Internet Go Server allows players to observe or play games against each other online and automatically calculates rank and handicaps.
With that out of the way, Go is a fantastically simple game. The aforementioned book or a YouTube tutorial would introduce the game more clearly than a wall of text; but the rules are brief. Two players elect to play either black or white; black plays first. Players play on a 19x19 grid, or for faster games on 13x13 or 9x9 grids, by placing stones on the intersections. Each open space on the four cardinal directions represents a liberty; if one player surrounds the other player's stone on all 4 sides, that stone is captured. Stones of the same color sitting on adjacent liberties become a connected group, and thus the whole group must be surrounded to be captured.
The final rule, as consequence of the above play, is the Ko rule. The Ko rule simply states that one play cannot put the board into the exact preceding position. The Ko rule results in "Ko Fighting," a phenomena where a player cannot play a stone to recapture a point immediately, and thus instead must play a stone in a position that produces disproportionate gains if not answered immediately. The opponent will either respond to this threat, allowing recapture of the taken point and capture of the attacking stone; or settle the Ko, ignoring the threat and losing something in exchange.
Based on these simple rules, players must move to make territory: controlled area surrounded by the borders of their own stones. Players can reduce each others' territory by taking control of areas inside the opponent's border. For example, if black controls a third of the board mainly around the lower right corner, white can reduce this territory by taking control of a fifth of the board including the lower right corner. White must do this by creating life in that area: a group of stones is alive if there is no possible way to capture it. At the end of the game, the rules of scoring give each player one point for each point of surrounded territory minus one point for each stone the opponent has captured.
Between all this, the simple game of Go gives rise to many, many concepts. The primary concept of Go is that of Life and Death. A group of stones that is impossible to capture by correct play is "Alive," while a group of stones that cannot avoid capture by any means is "Dead." Groups are otherwise "unsettled." Further, there exists the concept of seki or "Dual Life" by which two groups of stones are both alive only because whichever player plays first to kill the other group will instead kill his own group. The study of life and death greatly improves a player's skill at Go: players that recognize shape early and move to prevent life can more easily retain territory; players who recognize shape and move to create shape that leads more easily to life can more easily invade their opponent's territory. As a final consequence of Life and Death, by the way, dead stones are removed from the board and captured automatically during scoring; therefor there is no reason to waste moves capturing unless your opponent forces the issue.
Another concept in Go is Joseki, which indicates a "settled pattern" of moves that produces a balanced outcome. Joseki are usually played in the opening and represent optimal play by both players: the outcome is balanced because neither player has a sufficient advantage to overwhelm the other, and thus deviation from Joseki weakens the player who deviates. Proper joseki helps players avoid entering midgame at a disadvantage when hostilities break out during the opening.
Other studies in Go follow connections and basic moves to play. While groups are only formed with solid connections, players can eliminate the threat of cutting a connection by playing non-solid connections such as diagonals and bamboo joints, or even wider shapes that cannot be effectively cut. Often moves such as the Knight's Move, hane (Turn the Corner), or Monkey Jump represent complex play that turns what appears at a glance to be a somewhat scattered set of stones into a strong, solid shape during combat and capturing races. Thus the playing of Go relies on extremely distant abstract thinking in situations that can rapidly change and have many, many open options for play.
Go does not rely on fate (as in Backgammon and other dice games) or conflict (as with Chess). It can be said that Backgammon is a man versus fate game, where winning depends on pure chance; while Chess is a man versus man game, concentrating on the concrete goal of outmaneuvering your opponent to capture his king. One can consider Go, on the other hand, as a problem of man versus self: the playing of Go is only improved by judgment, balance, and understanding of play, and such conflict and capturing that arises between the players is often brief and only a minor part of play. Go is a matter of playing the position, not playing a calculated military strategy. This makes Go extremely challenging and enlightening, and very rewarding for players who spend a fair amount of time not only playing, but also studying.
