Microbes at the Gas Pump
Springing forward
Chicken Eggs as Drug Factories
Poison Dart Frogs
New Monkey Business
Helping the Cause of Macaws
Little Beetle, Big Horns
The Electric Brain
Sugar-pill medicine
Talking with Hands
A Meal Plan for Birds
Chemistry and Materials
Mother-of-Pearl on Ice
Earth-Friendly Fabrics
Lighting goes digital
Galaxies on the go
Supersonic Splash
Batteries built by Viruses
Dinosaurs and Fossils
Have shell, will travel
South America's sticky tar pits
Mammals in the Shadow of Dinosaurs
E Learning Jamaica
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
Watering the Air
In Antarctica watch the heat (and your step)
Earth's Poles in Peril
Spotty Survival
A Change in Leaf Color
Watching for Wildfires in Yellowstone
Finding the Past
Big Woman of the Distant Past
The Puzzle of Ancient Mariners
Stone Age Sole Survivors
Electric Eel
Food and Nutrition
Allergies: From Bee Stings to Peanuts
Symbols from the Stone Age
Healing Honey
GSAT English Rules
Who vs. Whom
Finding Subjects and Verbs
GSAT Exam Preparation Jamaica
March 21-22, 2013: Over 43,000 students will take the GSAT Exam
10 Common Mistakes When Preparing for the GSAT Math Test
How are students placed after passing the GSAT exam
GSAT Exams Jamaica Scholarships
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
42,000 students will sit for the GSAT Exam in two weeks
GSAT Mathematics
A Sweet Advance in Candy Packing
Play for Science
Detecting True Art
Human Body
Cell Phones and Possible Health Hazards
Foul Play?
Cell Phone Tattlers
Walking Sticks
Expert report highlights the importance to parents of reading to children!
How children learn
Choosing a Preschool: What to Consider
Electric Backpack
Gaining a Swift Lift
One ring around them all
Nature's Alphabet
Underwater Jungles
Making the most of a meal
Space and Astronomy
Chaos Among the Planets
Witnessing a Rare Venus Eclipse
A Dusty Birthplace
Technology and Engineering
Shape Shifting
Dancing with Robots
A Satellite of Your Own
The Parts of Speech
What is a Preposition?
Countable and Uncountable Nouns
What is a Verb?
Middle school science adventures
Reach for the Sky
Robots on a Rocky Road
Either Martians or Mars has gas
Watering the Air
Warmest Year on Record
Add your Article

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

Machine Copy
Machine Copy

Designed and Powered by™