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Springing forward
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No Fair: Monkey Sees, Doesn't
Clone Wars
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Surprise Visitor
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Girls are cool for school
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Small but WISE
A Framework for Growing Bone
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Nonstop Robot
Look into My Eyes
A New Look at Saturn's rings
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Meet the new dinos
Fossil Fly from Antarctica
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E Learning Jamaica
2014 GSAT Results for Jamaican Kids
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Results of GSAT are in schools this week
Earth
Slower Growth, Greater Warmth
Challenging the Forces of Nature
Getting the dirt on carbon
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When Fungi and Algae Marry
Plant Gas
Out in the Cold
Finding the Past
Sahara Cemetery
Childhood's Long History
Watching deep-space fireworks
Fish
White Tip Sharks
Tilapia
Piranha
Food and Nutrition
A Taste for Cheese
Turning to Sweets, Fats to Calm the Brain
Symbols from the Stone Age
GSAT English Rules
Order of Adjectives
Adjectives and Adverbs
Who vs. That vs. Which
GSAT Exam Preparation Jamaica
2014 GSAT Results for Jamaican Kids
March 21-22, 2013: Over 43,000 students will take the GSAT Exam
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GSAT Exams Jamaica Scholarships
GSAT Practice Papers | GSAT Mathematics | Maths
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Results of GSAT are in schools this week
GSAT Mathematics
Setting a Prime Number Record
Detecting True Art
Math of the World
Human Body
Speedy Gene Gives Runners a Boost
A New Touch
Heart Revival
Invertebrates
Fleas
Walking Sticks
Arachnids
Mammals
Pomeranians
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Beavers
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Choosing a Preschool: What to Consider
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How children learn
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Road Bumps
Thinner Air, Less Splatter
Hold on to your stars, ladies and gentlemen
Plants
Assembling the Tree of Life
When Fungi and Algae Marry
City Trees Beat Country Trees
Reptiles
Komodo Dragons
Garter Snakes
Boa Constrictors
Space and Astronomy
A Galaxy Far, Far, Far Away
A Star's Belt of Dust and Rocks
Saturn's New Moons
Technology and Engineering
Model Plane Flies the Atlantic
Beyond Bar Codes
Spinach Power for Solar Cells
The Parts of Speech
What is a Preposition?
What is a Verb?
What is a Noun
Transportation
Tinkering With the Basic Bike
Are Propellers Fin-ished?
Troubles with Hubble
Weather
A Dire Shortage of Water
Recipe for a Hurricane
The Best Defense Is a Good Snow Fence
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Flying the Hyper Skies

A little airplane has given new meaning to the term "going hyper." The Hyper-X recently broke the record for air-breathing jet planes when it traveled at a hypersonic speed of seven times the speed of sound. That's about 5,000 miles per hour. At this speed, you'd get around the world—flying along the equator—in less than 5 hours. The Hyper-X is an unmanned, experimental aircraft just 12 feet long. It achieves hypersonic speed using a special sort of engine known as a scramjet. It may sound like something from a comic book, but engineers have been experimenting with scramjets since the 1960s. For an engine to burn fuel and produce energy, it needs oxygen. A jet engine, like those on passenger airplanes, gets oxygen from the air. A rocket engine typically goes faster but has to carry its own supply of oxygen. A scramjet engine goes as fast as a rocket, but it doesn't have to carry its own oxygen supply. A scramjet's special design allows it to extract oxygen from the air that flows through the engine. And it does so without letting the fast-moving air put out the combustion flames. However, a scramjet engine works properly only at speeds greater than five times the speed of sound. A booster rocket carried the Hyper-X to an altitude of about 100,000 feet for its test flight. The aircraft's record-beating flight lasted just 11 seconds. In the future, engineers predict, airplanes equipped with scramjet engines could transport cargo quickly and cheaply to the brink of space. Hypersonic airliners could carry passengers anywhere in the world in just a few hours. Out of the three experimental Hyper-X aircraft built for NASA, only one is now left. The agency has plans for another, 11-second hypersonic flight, this time at 10 times the speed of sound. Hang on tight!—S. McDonagh

Flying the Hyper Skies
Flying the Hyper Skies








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