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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Glick: Embracing dangerous delusions and not our friends Steven Goldberg: 5 Great Stock Picks and the Exchange-Traded Fund that Owns Them Janet Bodnar: How to Teach Kids to Handle Credit Cards Mary Pickett, M.D.: Ask the Harvard Experts: Don't be forced into gluten-free lifestyle based merely on a doctor's false-positive test The Kosher Gourmet by Carolyn Malcoun: DIY healthy lunchbox treats: HOMEMADE FRUIT BARS for kids and brown-bagging adults alike May 17, 2012 Warren Richey: Teacher fired for being unwed and pregnant can sue religious school, court rules Josh Mitnick: Netanyahu's 'centrist' coalition is already proving it's anything but Steven Goldberg: Earn Dividends in Emerging Markets with This WisdomTree ETF Mary Beth Franklin: Retirement Savings Tips for New Grads Amina Khan: Research links coffee to lower death rates Chelsea Sheasley: Social media: Is it too feminine? The Kosher Gourmet by Faith Duran : Cheesy Potato Breakfast Casserole with Cheddar and Sun-Dried Tomatoes May 16, 2012 Jackson Holahan: The Aleppo Codex Jonathan Tobin : Iran Declares Victory in Nuclear Talks Kiplinger Reports, Summarized Anne Kates Smith: 7 Stocks That Let You Sleep Tight Carmen Terzic, M.D., Ph.D. : Mayo Clinic Medical Edge: A variety of exercises can help improve balance Melissa Healy: National strategy on Alzheimer's disease aims to halt it by 2025 The Kosher Gourmet by Joyce White : GOODNESS GRACIOUS: GREENS! 4 winning recipes that are no longer just for down-home folks (Includes expert tips & techniques) May 15, 2012 Dennis Prager: God and Man at (and for) Liberty Kristen Chick: Obama administration resumes arms sales to Bahrain despite serious unresolved human rights issues. Activists feel abandoned Pat Mertz Esswein: Homes are now affordable again and mortgage rates are low. 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. Shafier: Why happiness will always be elusive Charles Krauthammer: Echoes of '67: Israel unites Howard LaFranchi: With G8 snub, US-Putin 'reset' off to stumbling start Jeremy J. Siegel: Investors, Relax About Rising Interest Rates Jessica L. Anderson: Get the Best Deal on a Used Car Jett Stone: Forget face-lifts and fake knees. Scientists have seen the fountain of youth --- and it's broccoli The Kosher Gourmet by Chef Mario Batali: The famed chef's vegetable dish that tastes true to the season: FAVAS AND SUGAR SNAP PEAS WITH POTATOES AND TARRAGON May 10, 2012 Clifford D. May: The Real Palestinian Refugee Problem Sergei L. 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. How you can reduce your risk -- or delay -- chronic diseases associated with aging Howard LeWine, M.D.: Ask the Harvard Experts: Why did my blood pressure suddenly shoot up? Lisa Gerstner: Lower the Rate on All Your Loans The Kosher Gourmet by Emily Ho : Springtime soba with miso sauce offers a coloful mix of fresh textures and flavors May 8, 2012 Edmund Sanders: Netanyahu suddenly cancels new elections, forms unity government Frank J. Gaffney Jr.: Farewell to European superstate Anne Kates Smith: 4 Stocks That Mimic Buffett and Berkshire Hathaway Gaia Vince and Clare Wilson The Rise of Miniature Medical Robots: Fantasy Fast Becoming Reality Paul Takahashi, M.D.: Mayo Clinic Medical Edge: Never suffer night leg cramps Jessica L. Anderson: Extended-Warranty Warning The Kosher Gourmet by Diane Rossen Worthington: Celebrate National Chocolate Chip Day with the Best Cookie Ever (Includes techniques) May 7, 2012 Mark Clayton: Homeland Security warns major cyber attack aimed at gas pipeline industry underway Angus Roxburgh: Putin Decoded: World view of a Russian feeling dissed Kimberly Lankford: Navigate a Course for Long-Term Care Kevin McCormally How to Adjust Your Tax Withholding Celeste Robb-Nicholson, M.D.: Harvard Health Letters: How do you treat a Baker's cyst? Joanne Capano: Healthy Snacks for Children: The Choices May Surprise You The Kosher Gourmet by Penelope Wall: Classic Creamy Spinach Dip with a Fraction of the Calories and Fat May 4, 2012 Rabbi Nathan Lopes Cardozo: Holy 'trivialities' Jonathan Tobin: Bibi v. Barak will be no contest this time around Steven Goldberg: Blue Chip Stocks On Sale Worldwide Art Pine Slow Productivity Growth a Blessing --- For Now Sue Hubbard, M.D. : The Kid's Doctor: Are Kids Too Wired? Kerri-Ann Jennings, M.S., R.D: Foods that are good for your smile Amy Paturel, M.S., M.P.H.: Eating Well: Foods that are good for your smile The Kosher Gourmet by Betty Rosbottom: Strawberry rhubarb parfaits are elegant yet simple to assemble May 3, 2012 Michael Freund: Who's Afraid of the Messiah? Clifford D. May: The Foggiest War Susan B. Garland: Insurance to Cover Old Old Age Steven Goldberg 6 Reasons to Bet on a Big Bull Market Harvard Health Letters: Treating prostate cancer --- no rush to judgment Larry Gordon: Harvard, MIT partner to offer free online courses Naomi Nix : Man gets free trip to Chicago after postcard sent by mother in 1957 finally reaches him The Kosher Gourmet by Diane Rossen Worthington: Intensely Italian vegetable frittata is a seriously simple standby

Jewish World Review How giant TV screens work By Marshall Brain http://www.JewishWorldReview.com | (MCT) Think about the biggest TV screen you have ever seen. For example, the biggest TV in the world is more than 100 feet wide and 55 feet tall. A gigantic screen like this is made of millions of tiny light bulbs called LEDs. But there are also hundreds of computers at work, and enough electricity to power a small town. Let's explore the biggest sign in Times Square in New York City - the NASDAQ Marketsite Tower sign - to find out how these megascreens work. Let's start with the smallest part of the sign - a single Light Emitting Diode, or LED. An LED is a tiny colored light bulb. You see these little lights everywhere - for example, your DVD player might have a red LED that tells you whether or not it is on. LEDs have three big advantages when it comes to making a gigantic TV screen. First they are bright. Second, they are efficient, meaning that they turn most of the electricity they receive into light. Third, they last a long time. A typical LED might last 100,000 hours before it burns out. On any large LED screen, you use clusters of LEDs to make one pixel. For example, a small sign uses one red LED, a green LED and a blue LED to make one pixel. By changing the brightness of the three LEDs, you can create any color in the rainbow. Turn all three LEDs off and you have black. Turn them all on at full brightness and you have white. And you can create any color in between. In a big sign like the NASDAQ Marketsite Tower, you need even more LEDs in a pixel because the sign is so large. This sign uses two red LEDS, three blue LEDs and three green LEDs to make a single pixel. Since the sign has 1,800 by 1,200 pixels, that means that there are about 17 million LEDs in the sign! These LEDs are wired onto boards called tiles. A tile has 256 pixels, arranged in a 16 x 16 grid, with 8 LEDs per pixel. A tile also has its own computer to control the LEDs on the tile. The NASDAQ sign has 9,000 of these tiles, each about a foot square. The tile needs data to tell it how to light up its 256 pixels. This data comes from a main control computer that knows how the whole screen should look. The data for the tile contains an intensity level for the red, green and blue LEDs for each of the pixels. In other words, 30 times each second, all 256 pixels on the tile need to get intensity information. The computer on the tile decodes this information and drives transistors that send electricity to the LEDs. The tiles all chain together, one to the next, and pass the data from the main computer from tile to tile. The other thing a tile needs is power. Each tile uses about 60 watts when all the LEDs are lit at full intensity. The power comes from a set of 700 power supplies that are housed behind the sign. If you multiply 9,000 tiles by 60 watts, you can see that this sign needs 540,000 watts - enough to power several hundred houses. The problem is, all those tiles and power supplies generate a LOT of heat. To handle all this heat, 12 large air-conditioning compressors chill a glycol solution that circulates behind the sign. The air conditioners can use about as much power as the sign itself. If those air conditioners were ever to fail while the sign is running, it would be a big problem, especially if someone was working on the catwalks behind the sign. It's estimated that it would only take a few minutes for the heat to build to 200 degrees or more behind the sign. Anyone working in the tower would bake to death. Who would think that it takes so much technology to show a picture on a screen? These giant signs are a lot more complicated than they look, and that is what makes them so expensive. It cost tens of millions of dollars to put up the NASDAQ sign. Just the electricity for the sign costs more than $1,000 per day. 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 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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