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? Guy Jackson : Victim's father regrets death of Lockerbie bomber The Kosher Gourmet by Mario Batali: Famed chef's veal shoulder farsumagru: A festive meat course for late spring May 18, 2012 Rabbi Berel Wein: Striving: The People of the Book's Book for (All of) the People Caroline B. 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. 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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 Stuff Works: How a manned mission to Mars works By Marshall Brain http://www.JewishWorldReview.com | (MCT) As we celebrate the 40th anniversary of the Apollo 11 moon landing, it brings up an obvious and tantalizing question — will America, or anyone else for that matter, ever land human beings on Mars? And if not, what prevents us from getting there? Human kind will have to overcome a number of technical challenges in order to get people anywhere near Mars. One of the most interesting, and most easily studied, is the human psychology problem. Getting to Mars takes a long time because Mars is so far away. The minimum time is about seven months with current technology. With better technology, using plasma engines and nuclear reactors, we might cut the time to four months. In either case, it's a long time. The time would be spent by a crew of three to six people living together in something the size of a small RV. That's where the weird psychology comes in. Once the astronauts get into this little vehicle, they can't get out to stretch their legs, and there is no way to turn around and come home. A recent Russian simulation locked a crew in an earth-based simulator for 105 days just to see what would happen. They did surprisingly well. The second thing to worry about are the effects of space flight on the passengers. That includes two things: 1) Cosmic rays and 2) weightlessness. We know from the space station that weightlessness is hard on people. Gravity provides strain that keeps bones and muscles in shape. Lack of gravity, especially for long periods of time, weakens bones and muscles. It might be possible to create artificial gravity, but we've never actually tried it in space so we don't know how well it would really work. Cosmic rays are a bigger concern because they cause permanent damage, normally in the form of cancer. On earth we are protected from cosmic rays by the air we breathe (cosmic rays collide with the molecules of air and disintegrate) and the magnetic field (which deflects cosmic rays). A long trip to Mars leaves the astronauts as easy targets for cosmic rays unless there is a lot of shielding in their ship. The next problem is supplies. Sending a person to Mars and back could take two years or more. That means the person needs to carry tons of food and water along for the trip. You can see another problem developing as we are discussing these problems. Between the need for artificial gravity, the tons of food, the cosmic ray shielding and all the fuel to get to Mars and back, we are talking about a gigantic ship. And we haven't even mentioned the lander, its fuel, the habitat and supplies that have to ride on the lander, any vehicles (like a car) that might be desirable, and the ability to generate necessities like power. All of these weighty problems have caused researchers and futurists to consider possible alternatives. One alternative is the idea of leaving the astronauts on Mars. We would send them there, and they would live there for the rest of their lives in some sort of self-sustaining ecosystem. Stranding people on Mars sounds a little drastic. Plus, we have no idea if an ecosystem would work. So there is another possibility. In this approach, the return vehicle is sent in one mission. It lands on Mars and starts manufacturing its own fuel (from ice it finds in the crust) for the return trip. The habitat and its supplies are sent in another mission. Then perhaps there is a third mission to handle things like vehicles and power generation. Once everything is ready, the astronauts take off. When they land on Mars, it is like arriving at a vacation condo. They immediately start on exploration. Hopefully all these pre-delivered pieces make their arrival ship small enough to be imaginable. All those missions to Mars, however, start to add up in terms of cost. Estimates on the cost of going to Mars are all over the map, but range as high as a trillion dollars. That price tag may, ultimately, be the thing that keeps human beings away from Mars. We may never allocate the money we need to get there. 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 gold works How bad breath works How the ultimate sunglasses work Any rocket is easily converted to a missile How to have a great staycation How a black box works How a solar roof works How nuclear bombs work How the Hubble Space Telescope works How hay fever works How to know when to rent vs. buy How swine flu works How a kidney dialysis machine works How children die in hot cars How a trillion dollars works How electronic cigarettes work How chimpanzees work How in vitro fertilization works How supertankers work How poisons work How corn works How dog ID chips work How President Obama's limousine works How emergency power works How aircraft carriers work How antibiotics and vaccines work How mucus works How iron and steel work How aspirin works How igloos work How the Predator UAV works How retention ponds work How water absorbers work How melamine works How digital music works How coal mining works How an economic depression works How the liver works How 3D movies work 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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