Agriculture
Keeping Bugs Away from Food
Getting the dirt on carbon
Earth-Friendly Fabrics
Amphibians
Tree Frogs
Frogs and Toads
Salamanders
Animals
Crocodile Hearts
A Meal Plan for Birds
Life on the Down Low
Behavior
Homework blues
Newly named fish crawls and hops
The Smell of Trust
Birds
Woodpecker
Owls
Swifts
Chemistry and Materials
Earth from the inside out
Gooey Secrets of Mussel Power
Silk’s superpowers
Computers
Seen on the Science Fair Scene
The Book of Life
Music of the Future
Dinosaurs and Fossils
Have shell, will travel
Ancient Critter Caught Shedding Its Skin
Hunting by Sucking, Long Ago
E Learning Jamaica
Results of GSAT are in schools this week
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
2014 GSAT Results for Jamaican Kids
Earth
Earth's Lowly Rumble
Earth Rocks On
Surf Watch
Environment
Plastic Meals for Seals
Eating Up Foul Sewage Smells
Watching for Wildfires in Yellowstone
Finding the Past
Stone Tablet May Solve Maya Mystery
Childhood's Long History
Big Woman of the Distant Past
Fish
Goldfish
Electric Ray
Halibut
Food and Nutrition
Building a Food Pyramid
Eat Out, Eat Smart
Chew for Health
GSAT English Rules
Whoever vs. Whomever
Finding Subjects and Verbs
Who vs. That vs. Which
GSAT Exam Preparation Jamaica
Results of GSAT are in schools this week
42,000 students will sit for the GSAT Exam in two weeks
GSAT Exam Preparation
GSAT Exams Jamaica Scholarships
Access denied - Disabled boy aces GSAT
GSAT Scholarship
GSAT stars reap scholarship glory
GSAT Mathematics
Setting a Prime Number Record
10 Common Mistakes When Preparing for the GSAT Math Test
How a Venus Flytrap Snaps Shut
Human Body
Walking to Exercise the Brain
Attacking Asthma
Running with Sneaker Science
Invertebrates
Tarantula
Corals
Tapeworms
Mammals
Sheep
Platypus
Marsupials
Parents
What Not to Say to Emerging Readers
Children and Media
Raise a Lifelong Reader by Reading Aloud
Physics
Einstein's Skateboard
Thinner Air, Less Splatter
Spin, Splat, and Scramble
Plants
Stalking Plants by Scent
Hungry bug seeks hot meal
White fuzzy mold not as friendly as it looks
Reptiles
Komodo Dragons
Pythons
Crocodiles
Space and Astronomy
Asteroid Moons
A Planet from the Early Universe
Black Holes That Burp
Technology and Engineering
A Light Delay
Model Plane Flies the Atlantic
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The Parts of Speech
Countable and Uncountable Nouns
What is a Noun
Problems with Prepositions
Transportation
Ready, unplug, drive
Where rivers run uphill
Middle school science adventures
Weather
Warmest Year on Record
Arctic Melt
Either Martians or Mars has gas
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Machine Copy

It would be a perfect theme for a horror movie: People build robots that can make copies of themselves. Robots reproduce like crazy. Robots take over the world. Ridiculous? In fact, only part of the story is fiction. Robots haven't yet taken over the world, but scientists from Cornell University have created simple machines that can make more of their own kind. The process is called self-replication. Far from being nightmarish, the researchers say, self-replicating robots could revolutionize space exploration. And they'd be perfect for clearing minefields and doing other risky tasks. Best of all, they'd be able to repair themselves. The new robots are made of stacks of blocks called "molecubes." Each cube is about the size of an adult's fist. Inside, there's a motor, electromagnets, and a tiny computer processor. The cubes are divided diagonally into plastic halves that can swivel back and forth. As a robot copies itself, computer programs tell the cube halves how to rotate. Electromagnets, meanwhile, let go of some cubes and pick up others that have been placed nearby. During the process, the stack of cubes twists and bends into various shapes, such as L's or upside-down U's. In the end, there are two identical objects, where once there was just one. This may not sound very impressive—yet. But it's a step on the path toward complex machines that can make copies of themselves.—E. Sohn

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