Home
In this issue
December 2, 2014

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 Stuff Works: How aircraft carriers work

By Marshall Brain

Printer Friendly Version
Email this article

http://www.JewishWorldReview.com | (MCT) With tensions rising around the world, America's military is constantly in the news. One of the most important parts of that military power is the aircraft carrier. A carrier is the largest machine in the arsenal, and it has an incredible ability. With an aircraft carrier, the United States can bring a complete, miniaturized military airfield to any part of the world in just a week or two.

The most impressive part of an aircraft carrier is its sheer size. At more than 1,000 feet long and 20 stories high, an aircraft carrier is like a mini city. It comes complete with at least 5,000 crew members to keep everything running.

Such a massive ship would need an incredible amount of fuel if it were using normal engines. Instead, U.S. aircraft carriers use nuclear reactors. Once the two reactors are installed, a carrier contains enough nuclear fuel to run for more than a decade. The reactors create steam, which drives a set of steam turbines. Each of the carrier's four massive propellers (21 feet in diameter) has its own turbine, and together the turbines create something on the order of 280,000 horsepower. The turbines also drive electric generators to provide all of the ship's power.

An aircraft carrier needs a lot of electricity. There is a huge air conditioning system to keep people and equipment cool. There's a desalination plant that processes half a million gallons of water a day. And there is a massive refrigeration system. There is enough food on board to feed 6,000 people for 70 days.

The whole point of all this technology is to create a floating airport. The flight deck covers about 4.5 acres. Beneath it is a massive hangar that can hold up to 100 airplanes. This hangar is 110 feet wide and almost 700 feet long - about 2 acres of covered space where planes can be stowed and repaired. To move the planes from the hangar to the flight deck there are four gigantic elevators. An elevator can lift about 150,000 pounds at a time.

Although an aircraft carrier is huge, it is tiny compared to a normal airport. Runways can be thousands of feet long on land. At sea there's just a few hundred feet to take off and land. An aircraft carrier gets around this problem using special technology.

When a plane needs to lift off, the technology takes the form of a steam-powered catapult. An airplane lines up and a crew member attaches its front wheel to the catapult shaft. The pilot guns the engines for maximum thrust, and then a crew member known as the "shooter" fires the catapult. A 45,000-pound plane goes from 0 to 165 miles per hour in the space of 300 feet. The whole process takes about 2 seconds, and the plane is in the air. It is possible to launch one plane every 25 seconds if needed.

When it is time to land, the technology takes the form of a tail hook on the airplane and four arresting cables stretched across the deck. The pilot's goal is to drop the plane so the hook snags a cable. Once snagged, the cable will reel out and bring the plane to a stop in about 300 feet. If the pilot misses the cables, the goal is to gun the engines, get back in the air and try again.

All these airplanes take a lot of fuel. There's more than 3 million gallons on board an aircraft carrier. But, like the crew's food, it's a limited amount. For this reason, an aircraft carrier never goes out alone. It always travels with a flotilla of other ships collectively known as a carrier battle group. The battle group includes resupply ships as well as guided missile cruisers, two destroyers, two submarines and a frigate to protect against enemy submarines. Together these ships collectively protect the aircraft carrier and each other against ships, missiles, airplanes and torpedoes.

U.S. aircraft carriers are so impressive that other nations are building up their own fleets. Britain is in the process of building several new carriers that will come on line around 2017. Russia plans to have 12 battle groups. China and India are setting up fleets as well. In 10 years, there will be dozens of aircraft carriers roaming the seas. It will be a completely different world.

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 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.

Columnists

Toons

Lifestyles