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Earth from the inside out
Putting the Squeeze on Toothpaste
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Two monkeys see a more colorful world
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New eyes to scan the skies
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The bug that may have killed a dinosaur
Meet the new dinos
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E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
Earth
Rodent Rubbish as an Ice-Age Thermometer
Earth from the inside out
Bugs with Gas
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The Oily Gulf
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A 'Book' on Every Living Thing
Finding the Past
Your inner Neandertal
Sahara Cemetery
An Ancient Childhood
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Chocolate Rules
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Eat Out, Eat Smart
GSAT English Rules
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Finding Subjects and Verbs
Whoever vs. Whomever
GSAT Exam Preparation Jamaica
10 Common Mistakes When Preparing for the GSAT Math Test
Ministry of Education Announces 82 GSAT Scholarships for 2010
GSAT stars reap scholarship glory
GSAT Exams Jamaica Scholarships
GSAT Practice Papers | GSAT Mathematics | Maths
Access denied - Disabled boy aces GSAT
GSAT stars reap scholarship glory
GSAT Mathematics
Prime Time for Cicadas
A Sweet Advance in Candy Packing
Monkeys Count
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Running with Sneaker Science
Speedy Gene Gives Runners a Boost
Germ Zapper
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Parents
Choosing a Preschool: What to Consider
Raise a Lifelong Reader by Reading Aloud
Expert report highlights the importance to parents of reading to children!
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Speedy stars
Road Bumps
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Bright Blooms That Glow
White fuzzy mold not as friendly as it looks
Seeds of the Future
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Planets on the Edge
Black Holes That Burp
Chaos Among the Planets
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Toy Challenge
Drawing Energy out of Wastewater
A Light Delay
The Parts of Speech
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What is a Verb?
Transportation
Reach for the Sky
Troubles with Hubble
Flying the Hyper Skies
Weather
Weekend Weather Really Is Different
A Dire Shortage of Water
Recipe for a Hurricane
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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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