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Morning Digest: U.S. defends permits for deals in sanctioned nations

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12/24/2010
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LATEST NEWS
U.S. defends permits for deals in sanctioned nations
WASHINGTON (Reuters) - The Treasury Department on Thursday defended its issuance of special licenses for American companies to do business with Iran and other blacklisted nations, in response to a New York Times report on deals made despite sanctions and trade embargoes. | Full Article
North Korea nuclear test "possible" in new year
December 24, 2010 04:47 AM ET
SEOUL (Reuters) - North Korea could carry out a third nuclear test next year to strengthen the credentials of its young leader-in-waiting, Kim Jong-un, a research report from a South Korean Foreign Ministry institute said on Friday. | Full Article
Wall Street marks 4th week of gains
December 23, 2010 05:55 PM ET
NEW YORK (Reuters) - Stocks racked up a fourth straight week of gains on Thursday, as investors expected optimism about the economic recovery to support equities through year-end. | Full Article
Online holiday sales up 15.4 percent: SpendingPulse
December 23, 2010 08:34 PM ET
NEW YORK (Reuters) - U.S. online shopping rose 15.4 percent to $36.4 billion for the holiday shopping season, a MasterCard Advisors' SpendingPulse report showed on Thursday. | Full Article
Gene study shows Neanderthals had eastern cousins
December 22, 2010 09:39 PM ET
WASHINGTON (Reuters) - DNA from an ancient prehuman girl found in Siberia shows she was likely an eastern relative of Neanderthals and, like them, her species interbred with early modern humans. | Full Article
Pittsburgh Steelers tame Panthers to tighten grip on AFC North
December 24, 2010 01:16 AM ET
PITTSBURGH (Reuters) - The Pittsburgh Steelers tightened their grip on top spot in the AFC North and a first-round bye in the playoffs by routing the Carolina Panthers 27-3 Thursday. | Full Article
Michelle Williams still asks why Heath Ledger died
December 23, 2010 02:03 PM ET
NEW YORK (Reuters) - Actress Michelle Williams says she still can't find the meaning behind Heath Ledger's death three years ago, in a rare interview talking about the late father of her child who died of a prescription overdose. | Full Article
Cuban eggs, not cigars, fall foul of U.S. Customs
December 23, 2010 11:55 AM ET
MIAMI (Reuters) - A Cuban-American father and daughter face a possible jail term or hefty fines after their attempt to bring 72 unhatched pigeon eggs from Cuba to the United States fell foul of U.S. Customs. | Full Article
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ABC NewsMail - afternoon edition

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 Afternoon Edition. Fri 24 Dec 2010


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 Top StoriesMore Top Stories > 

The 17-year-old only received legal advice for the first time this afternoon

Girl agrees to destroy nude player photos
Lawyers for the girl at the centre of the AFL nude photo scandal have agreed to destroy all images allegedly taken from St Kilda player Sam Gilbert's computer.

Corby family hopes for Christmas release
A spokesman for the family of convicted Australian drug smuggler Schapelle Corby says there is a chance she may be released from prison this Christmas.

Ponting set for Boxing Day
Ricky Ponting is on track to take his place in Australia's side for the Boxing Day Test after getting through a solid one-hour batting session.

Boat tragedy crew transferred after threats
Three Indonesians who were part of the crew involved in last week's Christmas Island boat disaster have been transferred to Perth after receiving threats.

Worker killed in Pilbara mine accident
A contract worker has been killed at a mine in Western Australia's Pilbara region.


 The DrumMore from The Drum > 

A source of hope

A source of hope
For many people across Australia, Christmas is a reminder of how things might have been; of disappointment and loss. Perhaps it brings into sharp relief the strained or shattered relationships that are part of life for so many. But the original Christmas story, now so obscured by clamouring consumerism, gaudy lights, and sentimentalised nativity scenes, still contains a message of profound hope.

Stop the fear, not the boats
What Australia needs most is a new policy to change the attitudes of Australians, not the practices of people smugglers.

Will the finger be raised for Ponting at the MCG?
With The Ashes series as well as a significant milestone in Ricky Ponting's career in the balance, all eyes are on the captain.

The state, religion and the need for rational scrutiny
When religion claims authority in the political sphere, it's totally justifiable that atheists and sceptics question the source of this authority. If religious organisations or their leaders claim to speak on behalf of a god, it's fair to ask whether the god concerned really makes the claims that are communicated on its behalf and why should its wishes by translated into laws. These questions are being asked more often, and so they should be.

Committing to the true spirit of Christmas
The money we give to help the less fortunate pales in comparison to the money we spend on ourselves at Christmas.


 WorldMore World Stories > 

Sailor jailed for stabbing female colleague
A Darwin court head heard a Navy sailor who stabbed a female colleague in the breast felt reluctant to get help for his mental illness because of the force's culture.

Shares slide as market closes
Local shares had a negative close today, with the All Ordinaries Index dropping 23 points to 4,866.

Paris airport cancels half of flights
French aviation authorities have cancelled half of the flights into and out of Paris' Charles de Gaulle airport because of freezing winter conditions.


 Science & TechnologyMore Science & Technology Stories > 

GM contamination of organic crop confirmed
WA's Department of Agriculture has confirmed genetically-modified canola has contaminated an organic farm in Kojonup.

New solar machine mimics plant life
Scientists in California have unveiled a solar device which mimics plants by transforming the sun's energy into fuel.

Drivers warned about locusts
The Victorian Department of Primary Industries is reminding drivers to take precautions against locusts over the holiday period.


 EnvironmentMore Environment Stories > 

Swimmers warned about rising current
South Australia's Emergency Service says higher water levels in the River Murray pose dangers for campers and swimmers.

Residents 'kept in dark' over high lead levels
Residents in WA's Mid West city of Geraldton are angry that it has taken so long to be told about high levels of lead being recorded in the air around the city's port.

High lead levels in Geraldton investigated
The State Government says it is not yet clear how long lead exports from Geraldton port will be suspended.



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Giz Explains: How 3D Works

By matt buchanan

Giz Explains: How 3D Works

Giz Explains: How 3D Works It seems like 3D is everywhere. Movies, living rooms. Even real life is 3D! But how does it all work?

Most 3D operates on a single basic principle—tricking our dumb, binocular brain into interpreting a 2D image into one with depth. The most basic way to do this is stereoscopy, which is essentially showing a slightly different image to each eye, which the brain mashes together into a 3D image.

3D that requires four eyes

It's easiest to do stereoscopic images with glasses or other dorky eyewear to change how you see stuff—hence there are a lot of variations in 3D glasses tech.


Anaglyph
An anaglyph image is the old-school, cheap 3D we all know and have mild nostalgic attachments to: An image has two different color layers, one for each eye, with slightly different perspectives. When we look at them through those awesome plastic glasses (usually with red and blue lenses) that block one layer in each eye, our easily tricked brain takes the resulting separate image from each eye and mashes them together to make a 3D scene in our head.

Giz Explains: How 3D Works
Polarized glasses
Polarized 3D glasses are the more modern choice for 3D for the masses—you've worn them if you've caught Avatar or Tron: Legacy or any other big-budget movie in 3D, since the big advantage they offer over anaglyph 3D is full-on color. They work kind of the same way as the red/blue glasses—two synced projectors throw images with slightly different perspectives up simultaneously, but at different polarizations. The polarized glasses only allow a single corresponding polarized image into each eye, and the brain does the hard work again, combining two separate images into a single 3D one. While it's mostly used in theaters now, it could be coming to living rooms in the next couple of years.

Giz Explains: How 3D Works
Active shutter glasses
If you buy a 3DTV from any of the majors—Sony, Panasonic, Samsung, etc.—or have played a PC game in 3D with Nvidia's 3D Vision tech—you're using active shutter glasses. They actually block vision alternately in each eye, synced with the refresh rate on the display. The glasses rapidly darken each lens while the display alternately shows images with a slightly different perspective (this is called alternate frame sequencing). It's essentially the "show different stuff to each eye" principle taken to its logically absurd conclusion—literally blocking the sight of the unwanted eye. Yes, these complicated goggles usually run over $100 and are heavier than the dorkiest dorky dork glasses, but they're the best 3D technology at home for the moment, and will be for at least the next couple of years.

Giz Explains: How 3D Works
Pulfrich Effect
The Pulfrich effect is a brain bug where side-to-side motion is interpreted to have some depth when there's a slight sync lag between your eyes. A set of glasses with a dark lens over one eye will make this happen, so when something moves from left to right, it'll look like it's moving back or forward—you know, in 3D. It's been used for the Super Bowl and Married with Children, since the glasses are so cheap.

Giz Explains: How 3D Works
ChromaDepth
ChromaDepth is perhaps the fanciest glasses tech, using micro-prisms and whatnot (hello red and blue all over again), but all it essentially does is slightly shift the way colors are perceived in each eye, so they see different things and boom, 3D. The major limitation of the tech is that if you change the color of an object, you also change how its depth is perceived, since it's all based on color. (Check out the video above, done in ChromaDepth, to see what I mean.)

No glasses required

Giz Explains: How 3D Works
Parallax barrier
A parallax barrier is one of the more popular ways for swinging 3D without glasses. It's what's behind the Nintendo 3DS's 3D magic, along with old school Sharp 3DTVs (Sharp's making the 3DS's screens), and the back of Fuji's 3D camera. It actually works a lot like polarized glasses, it just moves where the obstruction magic happens to the front of the TV. Instead of having glasses filter the image for each eye, the screen's parallax barrier—think of it is a very finely grated fence with precisely angled holes—directs different light into each eye, and your brain turns the mixed signals into a 3D image. The bad part? With a normal parallax barrier, the screen is permanently in 3D mode and you don't have exactly have a wide viewing angle. Sharp's trick for 3D in its LCD displays is fancier—there's a second LCD that creates the parallax barrier with a polarized grid of lines, which is nice because you can turn it off and go back to regular 3D viewing.

Giz Explains: How 3D Works
Integral Imaging
Integral Imaging is a form of parallax actually. You've got a bunch of supertiny micro-images that you actually peep through an array of spherical convex lenses, one per micro-image. All these micro-images come together when you look at them to form a 3D image.


Another form of parallax is continuous-motion parallax. Here, HoloVizio's system dumps pixels in favor of voxels, which can project multiple light beams in multiple directions simultaneously.

Something you still wanna know? Send any questions about 3D, double Ds or croissan'wiches to tips@gizmodo.com, with "Giz Explains" in the subject line.

Gizmodo 3D! We're excited about the potential of entertainment in Three Ds, so this week, we're looking at everything good, bad and absurd about the current state of 3D.

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