Protecting Cows—and People—from a Deadly Disease
Making the most of a meal
Watering the Air
Salamanders and Newts
Koalas, Up Close and Personal
Fishy Cleaners
Feeding School for Meerkats
Mind-reading Machine
Homework blues
GSAT Mathematics Quiz, Teaching Math, teaching anxiety
Chemistry and Materials
The hungry blob at the edge of the universe
Sticky Silky Feet
Salt secrets
Galaxies on the go
Nonstop Robot
The Book of Life
Dinosaurs and Fossils
Three strikes wiped out woolly mammoths
An Ancient Spider's Web
The man who rocked biology to its core
E Learning Jamaica
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
Bugs with Gas
Warmest Year on Record
A Volcano Wakes Up
Animal CSI or from Science Lab to Crime Lab
Forests as a Tsunami Shield
What is groundwater
Finding the Past
Unearthing Ancient Astronomy
Prehistoric Trips to the Dentist
Ancient Cave Behavior
Food and Nutrition
Strong Bones for Life
In Search of the Perfect French Fry
Recipe for Health
GSAT English Rules
Who vs. Whom
Order of Adjectives
Finding Subjects and Verbs
GSAT Exam Preparation Jamaica
Preparing for the GSAT Exam
GSAT Exam Preparation
GSAT Practice Papers | GSAT Mathematics | Maths
GSAT Exams Jamaica Scholarships
2014 GSAT Results for Jamaican Kids
Access denied - Disabled boy aces GSAT
GSAT Scholarship
GSAT Mathematics
Math of the World
Deep-space dancers
Math is a real brain bender
Human Body
Sea Kids See Clearly Underwater
Germ Zapper
A Sour Taste in Your Mouth
Black Widow spiders
Polar Bear
African Leopards
How children learn
The Surprising Meaning and Benefits of Nursery Rhymes
What Not to Say to Emerging Readers
Road Bumps
Gaining a Swift Lift
Speedy stars
Tracking the Sun Improves Plant Pollen
Plants Travel Wind Highways
Assembling the Tree of Life
Snapping Turtles
Boa Constrictors
Space and Astronomy
Ringing Saturn
The two faces of Mars
Big Galaxy Swallows Little Galaxy
Technology and Engineering
Smart Windows
Are Propellers Fin-ished?
Sugar Power for Cell Phones
The Parts of Speech
Countable and Uncountable Nouns
What is a Noun
What is a Verb?
Reach for the Sky
Are Propellers Fin-ished?
Tinkering With the Basic Bike
Watering the Air
In Antarctica watch the heat (and your step)
Catching Some Rays
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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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