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Where Have All the Bees Gone?
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Protecting Cows—and People—from a Deadly Disease
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These gems make their own way
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A Light Delay
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An Ancient Spider's Web
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A Big, Weird Dino
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Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
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Rocking the House
Science loses out when ice caps melt
The Rise of Yellowstone
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Plastic Meals for Seals
The Best Defense Is a Good Snow Fence
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Stonehenge Settlement
Traces of Ancient Campfires
Unearthing Ancient Astronomy
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Megamouth Sharks
Mahi-Mahi
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Healing Honey
Chew for Health
Allergies: From Bee Stings to Peanuts
GSAT English Rules
Order of Adjectives
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GSAT Exam Preparation Jamaica
Scotiabank Jamaica Foundation Grade Six Achievement Test (GSAT) Scholarships
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Tarrant High overcoming the odds
GSAT Exams Jamaica Scholarships
2014 GSAT Results for Jamaican Kids
GSAT Practice Papers | GSAT Mathematics | Maths
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GSAT Mathematics
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
How a Venus Flytrap Snaps Shut
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A Long Trek to Asia
Hear, Hear
Football Scrapes and Nasty Infections
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Tarantula
Hermit Crabs
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Antelope
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What Not to Say to Emerging Readers
How children learn
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IceCube Science
The Particle Zoo
The Pressure of Scuba Diving
Plants
White fuzzy mold not as friendly as it looks
A Change in Leaf Color
Fungus Hunt
Reptiles
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Alligators
Crocodilians
Space and Astronomy
A Smashing Display
No Fat Stars
Phantom Energy and the Big Rip
Technology and Engineering
Dancing with Robots
Smart Windows
Are Propellers Fin-ished?
The Parts of Speech
Pronouns
Adjectives and Adverbs
Problems with Prepositions
Transportation
Troubles with Hubble
Robots on the Road, Again
Middle school science adventures
Weather
Earth's Poles in Peril
Watering the Air
Science loses out when ice caps melt
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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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