Agriculture
Middle school science adventures
Chicken Eggs as Drug Factories
Seeds of the Future
Amphibians
Toads
Bullfrogs
Newts
Animals
Pothole Repair, Insect-style
Roach Love Songs
A Butterfly's New Green Glow
Behavior
Listening to Birdsong
The case of the headless ant
The Science Fair Circuit
Birds
Ibises
Nightingales
Swifts
Chemistry and Materials
The chemistry of sleeplessness
Flytrap Machine
The memory of a material
Computers
Galaxies far, far, far away
The Book of Life
The solar system's biggest junkyard
Dinosaurs and Fossils
Dino-bite!
An Ancient Spider's Web
Feathered Fossils
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
Shrinking Glaciers
Earth Rocks On
Killer Space Rock Snuffed Out Ancient Life
Environment
Antarctica warms, which threatens penguins
Forests as a Tsunami Shield
Pumping Up Poison Ivy
Finding the Past
Stone Age Sole Survivors
Untangling Human Origins
Prehistoric Trips to the Dentist
Fish
Marlin
A Grim Future for Some Killer Whales
White Tip Sharks
Food and Nutrition
In Search of the Perfect French Fry
Symbols from the Stone Age
Allergies: From Bee Stings to Peanuts
GSAT English Rules
Adjectives and Adverbs
Who vs. That vs. Which
Pronouns
GSAT Exam Preparation Jamaica
Preparing for the GSAT Exam
42,000 students will sit for the GSAT Exam in two weeks
GSAT Practice Papers | GSAT Mathematics | Maths
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GSAT Practice Papers | GSAT Mathematics | Maths
GSAT stars reap scholarship glory
Results of GSAT are in schools this week
GSAT Mathematics
Math and our number sense: PassGSAT.com
Math of the World
Math Naturals
Human Body
Fighting Off Micro-Invader Epidemics
Gut Germs to the Rescue
Taste Messenger
Invertebrates
Crustaceans
Daddy Long Legs
Krill
Mammals
Blue Bear
Seal
African Wildedbeest
Parents
Expert report highlights the importance to parents of reading to children!
Children and Media
Raise a Lifelong Reader by Reading Aloud
Physics
The Pressure of Scuba Diving
Hold on to your stars, ladies and gentlemen
Dreams of Floating in Space
Plants
Farms sprout in cities
Sweet, Sticky Science
A Change in Leaf Color
Reptiles
Chameleons
Black Mamba
Crocodiles
Space and Astronomy
A Great Ball of Fire
Melting Snow on Mars
Planets on the Edge
Technology and Engineering
Musclebots Take Some Steps
Young Scientists Take Flight
Squeezing Oil from Old Wells
The Parts of Speech
What is a Noun
Pronouns
What is a Preposition?
Transportation
How to Fly Like a Bat
Ready, unplug, drive
Robots on the Road, Again
Weather
Catching Some Rays
Where rivers run uphill
The solar system's biggest junkyard
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Atom Hauler

Atoms are everywhere, but you'd never know it. Even though these tiny building blocks of matter make up everything—from chairs to air—they're far too tiny to see with your own eyes. When scientists want to study atoms one at a time, however, they can use special, highly sensitive microscopes to see them. Using these tools, called scanning tunneling microscopes (STMs), researchers can also move individual atoms around. Now, researchers in France and Germany have taken the technology one step further. They have found a way to gather up and move around atoms in bunches. Their work may help them eventually make and operate tiny, nanoscale machines.The key part of a scanning tunneling microscope is an extremely sharp needle that rides over the surface being examined. This sharp tip can even nudge a single atom from one place to another. But maneuvering more than one atom at a time is a difficult juggling act. To make the task easier, the researchers created a new, six-legged molecule. They called it hexa-t-butyl-hexaphenylbenzene (HB-HBP). The molecule is shaped like a hexagon (having six sides) and contains rings of carbon atoms. Six tripodlike feet support the structure. Like a minuscule vacuum cleaner, it can easily slide over a copper surface, sucking up loose copper atoms. Experiments performed at very low temperatures and in practically airless conditions showed that an STM tip can move an HB-HBP molecule that holds as many as five copper atoms that the molecule has picked up. Scientists can then use the STM tip to lift the carrier molecule, leaving the clump of atoms behind. The development is a major step toward making molecule-sized machines, scientists say. Someday, tiny sweepers might gather atoms together to form wires. Or they might pile atoms into regularly spaced mounds that, together, affect light or magnetic fields in useful ways.—E. Sohn

Atom Hauler
Atom Hauler








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