May 24, 2012 Jeff Jacoby: The peace process battered Israel's reputation Near-nuclear nation threatens to walk out of summit unless it gets its way Clifford D. May: What Iran's Rulers Want Michael Muskal: 'Pro-choice' position hits record low, according to poll Chris Farrell: Are We in a Tech Bubble? Kimberly Lankford: Switching Medicare Advantage Plans Mid-Year Bryan McIver, M.B., Ch.B., Ph.D.: Mayo Clinic Medical Edge: Understanding hyperthyroidism and its variety of treatment options French rights groups want Google to stop suggesting 'Jew' Two-fly rule for Beijing toilets The Kosher Gourmet by Penelope Wall: PHILLY CHEESE STEAKS --- hold the steak! May 23, 2012 Ex-CIA spy in Iran's Revolutionary Guard: Baghdad talks highlight Western naivete Putin's latest defiance shows Obama's whisper didn't work Tony Pugh: More private colleges offering tuition discounts Lisa Gerstner: 4 Money-Etiquette Questions Answered Mary Beth Franklin: How to Choose the Right Annuity for You Art Markman, Ph.D.: Get smart: How to bulk up your creativity muscles Israeli scientists use skin cells to help repair heart muscle Tina Susman: The wig wasn't enough: Man gets 13 years for posing as his dead mom The Kosher Gourmet by Emma Christensen:A simple way to do fish right May 22, 2012 David S. Cloud and Kathleen Hennessey: Obama changes mind on Pakistan invite to NATO summit --- and then gets dissed by country's president US Senate approves new sanctions against Iran ahead of Baghdad talks Warren Richey: Can US group challenge overseas surveillance act? Supreme Court to decide Supreme Court: Twins can't claim dead dad's benefits Thomas M. Anderson: Walking Away From a Mortgage Environmental Nutrition editors: The lowdown on a low-acid diet Pomegranate juice maker used deceptive ads, FTC judge rules Relatives outraged over spoof on Hamas chief's killing The Kosher Gourmet by Megan Gordon: Enjoy a celebration of the most rich and layered flavors: Black bean, sweet potato and quinoa chili May 21, 2012 Mark Clayton: Cybersecurity: How US utilities passed up chance to protect their networks Howard LaFranchi: NATO summit: Who will foot the bill for long-term Afghanistan security? Chris Farrell : Earn Dividends in Emerging Markets with This WisdomTree ETF James K. Glassman: 5 Stock Picks Among Online Retailers Stephen Whiteside, Ph.D. : Mayo Clinic Medical Edge: Social anxiety disorder --- or just shy? 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What you need to know before you buy Kathy Kristof: Our Practical Investor Fights Inflation with These 6 Investments Sue Hubbard, M.D.: The Kid's Doctor: Lactose intolerant young child? Check again Environmental Nutrition Editors: Get the facts on palm sugar sweetening The Kosher Gourmet by Kathy Hunt: Spread a Little Excitement with EXOTIC CONDIMENTS (4 RECIPES) May 14, 2012 Richard Simon: Purple Hearts for domestic terror victims? Nando Pelusi, Ph.D.: The privacy paradox: Surrounded by strangers, we risk isolation, anxiety Chris Farrell: Investing Lessons from the Great Recession Lisa Gerstner: How to Protect Your Identity, Finances If You Lose Your Phone Harvard Health Letters: Heart disease and dementia Tiffany O'Callaghan: New hormone mimics effects of exercise without the sweat The Kosher Gourmet by Megan Gordon: MANGO COCONUT OAT MORNING MUFFINS are a bright but hearty delight May 11, 2012 Rabbi B. 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Loiko: Putin sends warning to U.S., NATO in Victory Day speech at Red Square Mary Rourke: How being a 'mentch' got Vidal Sasoon his start and fighting in Israel's War of Independence provided him with confidence and a strong sense of his own identity Harvard Health Letters: Palliative care: Underused therapy yields surprising benefits Jeff Bertolucci: Get Home Phone Service for Less Than $10 a Month Rachel L. Sheedy and Susan B. Garland : Make the Right Moves to Boost Benefits The Kosher Gourmet by Betty Rosbottom: Gleaming with its golden, crimson, and snowy white hues, this silken smooth and creamy STRAWBERRY ORANGE TRIFLE looks impressive, but is easy to prepare May 9, 2012 John Rosemond: Parents, stop destroying the American male Valerie J. Nelson: Maurice Sendak, author of 'Where the Wild Things Are,' dies at 83 Bob Frick: Angst Over Annuities Sharon Palmer, R.D. 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Jewish World Review How 3D movies work By Marshall Brain http://www.JewishWorldReview.com | (MCT) At this moment in history, we are about to see a huge transformation in the movie theater business. Everything is about to go 3D. While there have been a handful of 3D movies in the past, we are about to enter the golden age of 3D movies. Dreamworks, the studio that has created animated blockbusters like "Shrek" and "Kung Fu Panda," has stated that all its new animated films will be 3D starting in 2009. Other studios will follow its lead. And there will be thousands of theaters across the United States with the equipment needed to digitally project those movies by 2009. It would not be surprising to see most of the mainstream Hollywood movies coming out in 3D in the coming years. The obvious question is: How do these new 3D movies work? Let's take a look. Anyone who has ever used a View Master understands the appeal of 3D images. With a View Master (or any other stereoscopic viewer) you are simultaneously looking at two still images that appear to be nearly identical. The viewer is set up so that the left eye sees one of the images, and the right eye sees the other. But the images are not identical. When the images were taken, they were shot using two cameras that were several inches to several feet apart. Your brain is able to combine the two slightly-different images and extract 3D depth information from them. What your brain sees is a beautiful 3D image that looks incredibly realistic. 3D movies are doing exactly the same thing. They are simultaneously presenting one moving image to your left eye and another, slightly offset image, to your right eye. But since you are sitting in a movie theater looking at a single screen with both eyes, there's a problem. How do you get separate images into each eye? In the early days of 3D movies, anaglyph glasses were the answer. These are the familiar red/blue glasses with a red filter for one eye and a blue filter for the other. Both left and right images appear on the screen at once, but one is tinted red and the other is tinted blue. Because of the colored filters in front of each eye, a separate image enters each eye and your brain creates the 3D effect. The obvious problem with this system is that it messes with the color of the images. The more modern way to handle 3D uses polarized light. This technique makes use of a very weird property of light called polarization. Imagine two synchronized projectors. One projector is showing the images of the movie intended for the left eye, while the other is projecting the images for the right eye. Both projectors point at the same screen. Now, in front of the lens of the left projector, we put a polarizing filter. The light coming through the projector has light waves oriented in both up-down and left-right directions. But the filter only lets through the light waves with the up-down orientation. We put another polarizing filter on the right projector that lets through only the light waves with the left-right orientation. And to complete the system, we have everyone in the audience wear glasses that also contain two polarized filters. So, the left eye can see only the light coming from the left projector, and the right eye can see only the light from the right projector. The brain puts the two separate images together and creates the 3D effect. When you use this polarization system with digital projectors, the 3D effect is even stronger. The images are perfectly synchronized and perfectly clear. There aren't any scratches or specs as with film projectors. And animated movies can enhance the effect even more because, in an animated film, you can design the movie around the 3D theme. For example, in the new 3D animated film called "Fly Me to the Moon", the miniature characters fly through a field of 3D grass. The 3D effect is amazing. Even more amazing is the fact that you will be able to get the 3D effect at home as well. Some TVs using DLP equipment already have 3D capability built in. The TV can display images so quickly that it can alternate images for the left eye and right eye 120 times per second. You wear a pair of electronic shutter glasses. These glasses use liquid crystal shutters to alternately block the left eye and the right eye. A box on top of the TV sends a signal to the glasses telling them when to switch from one eye to the other. Your brain sees beautiful 3D images. We just happen to live at the moment in history when this 3D transformation is happening. We will be the first ones to see the most amazing 3D movies ever. Every weekday JewishWorldReview.com publishes what many in the media and Washington consider "must-reading". Sign up for the daily JWR update. It's free. Just click here. Comment by clicking here. Previously: How oil pipelines work How jet packs work How seismographs work How Olympic technology works How Personal Rapid Transit works How 3G works How the Global Position System (GPS) works How octane works How cruise missiles work How submarines work How miles work How octane works How food preservation works How beer works How holding your breath works How smoke detectors work How heat pumps work How your night vision works How concentrating solar collectors work How your key fob works How the common cold works How the Large Hadron Collider Works How making a TV show works How dry cleaning works How exoskeletons work How an oil refinery works How landfills work How the Orion spacecraft works The cutting edge in HDTV Redefining the CD How the HDMI cable scam works How glow-in-the-dark toys work How the subprime mortgage crisis works How gift cards work How Tasers work How giant TV screens work How foreclosure works How Air Force One works How wildfire fighting works How vitamins work How ejection seats work How reattaching limbs works How hot air balloons work How paparazzi work How counterfeiting works How CDs work How the Edsel worked How Stinger missiles work How hybrid cars work How sharks work How mosquitoes work How diesel engines work How water towers work How the Dawn mission works How Kassam rockets work How the North American Eagle works Why aren't we flying to work? How tofu and soy milk work How Colony Collapse Disorder works How airbags work How the U.S. income tax works How gum works How caffeine works How Daylight Saving Time works How a cruise missile works How snow making works © 2007, How Stuff Works Inc. Distributed by McClatchy-Tribune Information Services.

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