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Jonathan Tobin: Defending the Right to a Jewish State

Heather Hale: Compliment your kids without giving them big heads

Megan Shauri: 10 ways you are ruining your own happiness

Carolyn Bigda: 8 Best Dividend Stocks for 2015

Kiplinger's Personal Finance editors: 7 Things You Didn't Know About Paying Off Student Loans

Samantha Olson: The Crucial Mistake 55% Of Parents Are Making At Their Baby's Bedtime

Densie Well, Ph.D., R.D. Open your eyes to yellow vegetables

The Kosher Gourmet by Megan Gordon With its colorful cache of purples and oranges and reds, COLLARD GREEN SLAW is a marvelous mood booster --- not to mention just downright delish
April 18, 2014

Rabbi Yonason Goldson: Clarifying one of the greatest philosophical conundrums in theology

Caroline B. Glick: The disappearance of US will

Megan Wallgren: 10 things I've learned from my teenagers

Lizette Borreli: Green Tea Boosts Brain Power, May Help Treat Dementia

John Ericson: Trying hard to be 'positive' but never succeeding? Blame Your Brain

The Kosher Gourmet by Julie Rothman Almondy, flourless torta del re (Italian king's cake), has royal roots, is simple to make, . . . but devour it because it's simply delicious

April 14, 2014

Rabbi Dr Naftali Brawer: Passover frees us from the tyranny of time

Greg Crosby: Passing Over Religion

Eric Schulzke: First degree: How America really recovered from a murder epidemic

Georgia Lee: When love is not enough: Teaching your kids about the realities of adult relationships

Cameron Huddleston: Freebies for Your Lawn and Garden

Gordon Pape: How you can tell if your financial adviser is setting you up for potential ruin

Dana Dovey: Up to 500,000 people die each year from hepatitis C-related liver disease. New Treatment Has Over 90% Success Rate

Justin Caba: Eating Watermelon Can Help Control High Blood Pressure

The Kosher Gourmet by Joshua E. London and Lou Marmon Don't dare pass over these Pesach picks for Manischewitz!

April 11, 2014

Rabbi Hillel Goldberg: Silence is much more than golden

Caroline B. Glick: Forgetting freedom at Passover

Susan Swann: How to value a child for who he is, not just what he does

Cameron Huddleston: 7 Financial Tasks You Should Tackle Right Now

Sandra Block and Lisa Gerstner: How to Profit From Your Passion

Susan Scutti: A Simple Blood Test Might Soon Diagnose Cancer

Chris Weller: Have A Slow Metabolism? Let Science Speed It Up For You

The Kosher Gourmet by Diane Rossen Worthington Whitefish Terrine: A French take on gefilte fish

April 9, 2014

Jonathan Tobin: Why Did Kerry Lie About Israeli Blame?

Samuel G. Freedman: A resolution 70 years later for a father's unsettling legacy of ashes from Dachau

Jessica Ivins: A resolution 70 years later for a father's unsettling legacy of ashes from Dachau

Kim Giles: Asking for help is not weakness

Kathy Kristof and Barbara Hoch Marcus: 7 Great Growth Israeli Stocks

Matthew Mientka: How Beans, Peas, And Chickpeas Cleanse Bad Cholesterol and Lowers Risk of Heart Disease

Sabrina Bachai: 5 At-Home Treatments For Headaches

The Kosher Gourmet by Daniel Neman Have yourself a matzo ball: The secrets bubby never told you and recipes she could have never imagined

April 8, 2014

Lori Nawyn: At Your Wit's End and Back: Finding Peace

Susan B. Garland and Rachel L. Sheedy: Strategies Married Couples Can Use to Boost Benefits

David Muhlbaum: Smart Tax Deductions Non-Itemizers Can Claim

Jill Weisenberger, M.S., R.D.N., C.D.E : Before You Lose Your Mental Edge

Dana Dovey: Coffee Drinkers Rejoice! Your Cup Of Joe Can Prevent Death From Liver Disease

Chris Weller: Electric 'Thinking Cap' Puts Your Brain Power Into High Gear

The Kosher Gourmet by Marlene Parrish A gift of hazelnuts keeps giving --- for a variety of nutty recipes: Entree, side, soup, dessert

April 4, 2014

Rabbi David Gutterman: The Word for Nothing Means Everything

Charles Krauthammer: Kerry's folly, Chapter 3

Amy Peterson: A life of love: How to build lasting relationships with your children

John Ericson: Older Women: Save Your Heart, Prevent Stroke Don't Drink Diet

John Ericson: Why 50 million Americans will still have spring allergies after taking meds

Cameron Huddleston: Best and Worst Buys of April 2014

Stacy Rapacon: Great Mutual Funds for Young Investors

Sarah Boesveld: Teacher keeps promise to mail thousands of former students letters written by their past selves

The Kosher Gourmet by Sharon Thompson Anyone can make a salad, you say. But can they make a great salad? (SECRETS, TESTED TECHNIQUES + 4 RECIPES, INCLUDING DRESSINGS)

April 2, 2014

Paul Greenberg: Death and joy in the spring

Dan Barry: Should South Carolina Jews be forced to maintain this chimney built by Germans serving the Nazis?

Mayra Bitsko: Save me! An alien took over my child's personality

Frank Clayton: Get happy: 20 scientifically proven happiness activities

Susan Scutti: It's Genetic! Obesity and the 'Carb Breakdown' Gene

Lecia Bushak: Why Hand Sanitizer May Actually Harm Your Health

Stacy Rapacon: Great Funds You Can Own for $500 or Less

Cameron Huddleston: 7 Ways to Save on Home Decor

The Kosher Gourmet by Steve Petusevsky Exploring ingredients as edible-stuffed containers (TWO RECIPES + TIPS & TECHINQUES)

Jewish World Review

How Stinger missiles work

By Marshall Brain

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http://www.JewishWorldReview.com | (MCT) Last month police recovered what is reported to be a missile launcher from the front yard of a New Jersey home. Even more troubling is the fact that the home stands in the flight path for the Newark airport. If the device actually is a shoulder-launched anti-aircraft weapon, then chances are that it will be very much like the U.S. Stinger missile. By understanding how a Stinger missile works, you can see why people are so nervous about these weapons being in the hands of terrorists.

The Stinger missile is designed to give ground troops a way to deal with low-flying airplanes and helicopters. On the battlefield, a Stinger missile is a very handy tool for eliminating enemy aircraft that may be bombing, strafing or watching soldiers on the ground. From a soldier's standpoint there are many advantages to the Stinger. First, it is a lightweight, portable weapon. The missile and its launcher weigh about 35 pounds and the launcher is reusable. Each missile is a sealed unit that weighs only 22 pounds (10 kg). It is a shoulder-launched weapon, and one person can launch a Stinger missile. The Stinger is also a fire-and-forget weapon. Once launched, the Stinger missile finds its target without the soldier needing to watch or guide it.

A Stinger missile is essentially a little 20 pound flying robot. It has a small microcomputer brain and a simple eye that is sensitive to the bright infrared light given off by a hot engine. The missiles also identify the UV "shadow" of the target and use that identification to distinguish the target from other heat-producing objects.

The nose of a Stinger missile has, essentially, an infrared digital camera in it that receives an infrared image of the scene. When the soldier gets ready to launch the missile, the missile must have the target visible in roughly the center of this sensor.

To fire the weapon, the soldier aims the missile at the target. When the seeker locks on, it makes a distinctive noise. The soldier pulls the trigger, and two things happen. First, a small launch rocket shoots the missile out of the launch tube and well clear of the soldier who is firing it. Then the launch engine falls away and the main solid rocket engine lights. This rocket propels the Stinger to approximately 1,500 mph (Mach 2). The missile flies to the target automatically and explodes.

While the missile is flying, the image of the airplane that it is trying to hit may become off-center on the infrared image sensor. When it does, that tells the missile that it is off-course, and the guidance system in the missile has to decide how to get back on course. The missile looks at the angle of off-centeredness and changes its angle of flight proportionally. By doing this dozens of times per second, the missile stays right on target.

A Stinger missile has a range of about five miles, and it can hit an airplane that is two miles up. The missile's bomb weighs about six pounds, and it explodes on contact with the airplane. The range of the Stinger and the size of the bomb makes a jumbo jet cruising along at take-off or landing speeds a sitting duck.

Several other countries make shoulder-launched missiles like the Stinger, so these devices are not exactly rare. Therefore, you might be wondering if there is any way to protect planes from this type of weapon. One standard technique used to confuse heat-seeking missiles is for a plane to drop flares. With luck the missile locks onto the heat from the flares rather than the engines and completely misses the plane. The president's 747 (Air Force One), along with many military aircraft, have these flares. They also have radio equipment to confuse other types of missiles as well. The problem is that these systems are expensive, and there are about 7,000 or so commercial airliners flying in the United States. It would cost billions of dollars to equip the whole fleet, so it may be years before we see any of these systems installed.

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Previously:


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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