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Math

New Analysis Pushes Back Possible Origin For Antikythera Mechanism 1

Posted by timothy
from the spin-the-dials-backwards dept.
We've mentioned several times over the years the Antikythera Mechanism, the astounding early analog computer recovered from a Greek shipwreck in shape good enough to allow modern recreations. The device has been attributed to different Greek mathemeticians and thinkers, such as Archimedes, Hipparchus, and Posidonius, but as reader puddingebola writes, "Current research suggests its origin may be much earlier, and its working based on Babylonian arithmetical methods rather than Greek Trigonometry, which did not exist at the time. Puddingebola excerpts from the NYT article: Writing this month in the journal Archive for History of Exact Sciences, Dr. Carman and Dr. Evans took a different tack. Starting with the ways the device's eclipse patterns fit Babylonian eclipse records, the two scientists used a process of elimination to reach a conclusion that the "epoch date," or starting point, of the Antikythera Mechanism's calendar was 50 years to a century earlier than had been generally believed.

+ - Hey kids! Banned books! ->

Submitted by nbauman
nbauman (624611) writes "The Gilbert, AZ school board has voted to tear out a page from Campbell's Biology (a standard highly-recommended textbook that many doctors and scientists fondly remember), because it discusses contraception without also discussing adoption. Julie Smith, a member of the Gilbert Public Schools governing board, said that she was a Catholic and "we do not contracept." Smith convinced the board that Campbell's violates Arizona law to teach "preference, encouragement and support to childbirth and adoption" over abortion. The Arizona Education Department decided that the pages didn't violate Arizona law, but nevermind. Rachel Maddow generously risked hassles for copyright violation and posted the missing pages as a service to Arizona honors biology students. http://www.msnbc.com/rachel-ma..."
Link to Original Source
Medicine

Single Pixel Camera Takes Images Through Breast Tissue 34

Posted by timothy
from the one-at-a-time-folks dept.
KentuckyFC writes Single pixel cameras are currently turning photography on its head. They work by recording lots of exposures of a scene through a randomising media such as frosted glass. Although seemingly random, these exposures are correlated because the light all comes from the same scene. So its possible to number crunch the image data looking for this correlation and then use it to reassemble the original image. Physicists have been using this technique, called ghost imaging, for several years to make high resolution images, 3D photos and even 3D movies. Now one group has replaced the randomising medium with breast tissue from a chicken. They've then used the single pixel technique to take clear pictures of an object hidden inside the breast tissue. The potential for medical imaging is clear. Curiously, this technique has a long history dating back to the 19th century when Victorian doctors would look for testicular cancer by holding a candle behind the scrotum and looking for suspicious shadows. The new technique should be more comfortable.

Google News Sci Tech: OnePlus And Cyanogen Inc. Might Be Aimed For A Split - Techaeris->

From feed by feedfeeder

Firstpost

OnePlus And Cyanogen Inc. Might Be Aimed For A Split
Techaeris
It's been a rough year for OnePlus. They drummed up feverish interest in their phone only to have to turn away potential customers. They ran with a convoluted invite system, alienated their fans with some questionable forum contests, and now it seems that...
OnePlus and Cyanogen on brink of breakup after India fightEngadget
OnePlus One will run custom Android 5.0, not CyanogenMod, in IndiaPhoneDog
OnePlus One Indian Users Will Not Receive CyanogenOS OTA Updates For NowAndroid Headlines - Android News

all 38 news articles

Link to Original Source

Comment: The reasons... (Score 0) 171

by guruevi (#48481969) Attached to: France Wants To Get Rid of Diesel Fuel

1) Diesel enjoys great tax breaks all over Europe. If you gas up with diesel, the government receives a smaller share than with Gasoline. Diesel cars are a LOT cheaper to own and operate in Europe. From my experience with the EU, this may be mandated and thus may not be able to be fixed by individual states.
2) Gasoline cars are harder to repair at home and break down more often and sooner. Fixing a diesel, especially the older ones, is easier but that is a lot less profitable to either business or government.
3) Many people in Europe skip the Diesel taxes all together by (illegally) driving on "red" home fuel diesel or avoid the markup by having their own tanks of 'white' diesel at home. Truckers sometimes have a switch installed that allows them to temporarily switch from 'red' to a reserve of 'white' for check points.
4) You can make a diesel car (especially the old 70/80's VW, Mercedes, Jeep and other 'tanks') run on several kinds of oil including old filtered frying oil, skipping taxes and duties all together.

Earth

France Wants To Get Rid of Diesel Fuel 171

Posted by Soulskill
from the send-it-to-us dept.
mrspoonsi sends this Reuters report: France wants to gradually phase out the use of diesel fuel for private passenger transport and will put in place a system to identify the most polluting vehicles, Prime Minister Manuel Valls said on Friday. Next year, the government will launch a car identification system that will rank vehicles by the amount of pollution they emit, Valls said in a speech. This will make it possible for local authorities to limit city access for the dirtiest cars. "In France, we have long favoured the diesel engine. This was a mistake, and we will progressively undo that, intelligently and pragmatically," Valls said. About 80 percent of French motorists drive diesel-powered cars. Valls said taxation would have to orient citizens towards more ecological choices, notably the 2015 state budget measures to reduce the tax advantage of diesel fuel versus gas.

Comment: Re:Is it just me ... (Score 1) 286

by bill_mcgonigle (#48481075) Attached to: First Star War Episode 7 Trailer Released

I'd assumed he was a good guy who'd stolen a stormtrooper uniform to infiltrate and/or escape

Star Wars took a fair beating for being almost all white. Bringing Billy Dee Williams on was at least partially a response to such criticism. We would expect casting from a 2015 Star Wars to be broad and inclusive and not repeat the first film's mistakes.

The funny thing is all this "aren't you a little black for a stormtrooper?" talk is arguing for a "white" stormtrooper when the guy who portrayed Fett is part Maori so it's wrong, if you even care about the premise.

But it's all nonsense anyway - people need to enjoy the film and try to be a little bit more colorblind. None of the characters are humans anyway.

+ - Researchers seek the origins of an early Analog Computer->

Submitted by puddingebola
puddingebola (2036796) writes "The Antikythera Mechanism is described as an early analog computer, used to predict the time of eclipses, and for astrological and astronomic instruction. Speculation about its origin has ranged from attributing it to different Greek Mathemeticians and thinkers, such as Archimedes, Hipparchus, and Posidonius, Current research suggests its origin may be much earlier, and its working based on Babylonian arithmetical methods rather than Greek Trigonometry, which did not exist at the time. From the article, "Writing this month in the journal Archive for History of Exact Sciences, Dr. Carman and Dr. Evans took a different tack. Starting with the ways the device’s eclipse patterns fit Babylonian eclipse records, the two scientists used a process of elimination to reach a conclusion that the “epoch date,” or starting point, of the Antikythera Mechanism’s calendar was 50 years to a century earlier than had been generally believed.""
Link to Original Source
Debian

Debian Forked Over Systemd 247

Posted by Soulskill
from the a-house-divided dept.
jaromil writes: The so called "Veteran Unix Admin" collective has announced that the fork of Debian will proceed as a result of the recent systemd controversy. The reasons put forward are not just technical; included is a letter of endorsement by Debian Developer Roger Leigh mentioning that "people rely on Debian for their jobs and businesses, their research and their hobbies. It's not a playground for such radical experimentation." The fork is called "Devuan," pronounced "DevOne." The official website has more information.

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