Agriculture
Chicken Eggs as Drug Factories
Treating peanut allergy bit by bit
Making the most of a meal
Amphibians
Salamanders and Newts
Tree Frogs
Newts
Animals
Lives of a Mole Rat
G-Tunes with a Message
Sleep Affects a Bird's Singing
Behavior
Memory by Hypnosis
When Darwin got sick of feathers
The Colorful World of Synesthesia
Birds
Lovebirds
Quails
Cassowaries
Chemistry and Materials
Sticking Around with Gecko Tape
Butterfly Wings and Waterproof Coats
Gooey Secrets of Mussel Power
Computers
Earth from the inside out
Two monkeys see a more colorful world
Galaxies on the go
Dinosaurs and Fossils
A Big, Weird Dino
Early Birds Ready to Rumble
Digging Dinos
E Learning Jamaica
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
Ice Age Melting and Rising Seas
Recipe for a Hurricane
Slip Slidin' Away—Under the Sea
Environment
When Fungi and Algae Marry
Shrinking Fish
City Trees Beat Country Trees
Finding the Past
A Plankhouse Past
Sahara Cemetery
Traces of Ancient Campfires
Fish
Sturgeons
Flounder
Lampreys
Food and Nutrition
The Color of Health
Food for Life
Chew for Health
GSAT English Rules
Order of Adjectives
Who vs. That vs. Which
Subject and Verb Agreement
GSAT Exam Preparation Jamaica
Scotiabank Jamaica Foundation Grade Six Achievement Test (GSAT) Scholarships
GSAT Practice Papers | GSAT Mathematics | Maths
GSAT Exam Preparation
GSAT Exams Jamaica Scholarships
42,000 students will sit for the GSAT Exam in two weeks
GSAT Scholarship
GSAT stars reap scholarship glory
GSAT Mathematics
Math of the World
Math Naturals
GSAT Practice Papers | GSAT Mathematics | Maths
Human Body
Gut Germs to the Rescue
Music in the Brain
Cell Phone Tattlers
Invertebrates
Flies
Oysters
Dust Mites
Mammals
Donkeys
Deers
Sun Bear
Parents
Raise a Lifelong Reader by Reading Aloud
What Not to Say to Emerging Readers
The Surprising Meaning and Benefits of Nursery Rhymes
Physics
Spin, Splat, and Scramble
Echoes of a Stretched Egg
Thinner Air, Less Splatter
Plants
When Fungi and Algae Marry
Flower family knows its roots
Underwater Jungles
Reptiles
Anacondas
Rattlesnakes
Gila Monsters
Space and Astronomy
Ready, Set, Supernova
Catching a Comet's Tail
Black Holes That Burp
Technology and Engineering
A Satellite of Your Own
A Micro-Dose of Your Own Medicine
Slip Sliming Away
The Parts of Speech
What is a Verb?
What is a Noun
Countable and Uncountable Nouns
Transportation
Robots on the Road, Again
Charged cars that would charge
Flying the Hyper Skies
Weather
Science loses out when ice caps melt
In Antarctica watch the heat (and your step)
The Best Defense Is a Good Snow Fence
Add your Article

Pencil Thin

Imagine a shaving of pencil lead, the kind that might fall on your desk after you use a hand-held sharpener. Now try to imagine a pencil flake that's only one atom thick—less than 1-millionth the thickness of the shaving! Scientists have created just such a thin flake, and they're already thinking about how they can use this incredibly wispy material. Pencil lead isn't really made out of lead. Instead, it's mostly a material called graphite, which consists of many layers of carbon stacked on top of each other. By rubbing pieces of graphite against a hard surface, scientists in England and Russia have broken apart these layers and isolated super-thin sheets of carbon. They call this nanomaterial "few-layer graphene." A second group of researchers created graphene in a different way. They started with a flat, fingernail-size fleck of a hard compound containing silicon and carbon. They then heated the fleck. Silicon evaporated from the top layers of the fleck's surface. This heating left only carbon in these upper layers, and the carbon atoms rearranged themselves to form graphene. Some scientists had predicted that, if such sheets were ever made, they would naturally curl up—like a poster that won't flatten after being rolled up in a tube for a long time. Instead, it turns out the graphene can lie flat. Scientists have been creating and experimenting with nanomaterials made out of carbon for nearly 20 years now. They've created buckyballs, in which carbon atoms are arranged in a pattern like that on a soccer ball. And they've created carbon nanotubes, which are shaped like drinking straws. Graphene is the newcomer. You can think of these new graphene sheets as starting materials that can be bent and molded into structures like those of the buckyball and carbon nanotube. Researchers have already put graphene to work. They've fashioned it into a wire and found that the material can conduct electricity. In fact, scientists expect graphene to produce less heat than normal materials do when they conduct electricity. This property may prove useful for making ultrasmall electronic gadgets that don't burn themselves up. Like ants, carbon nanomaterials are amazingly strong for their tiny size. And because graphene is naturally flat, researchers propose that the sheets would be a great material to use as a tough protective coating on devices. The material could also go into sensitive sensors that would vibrate at different rates in response to different chemicals. So the next time you're using a pencil to scribble notes in class, think of the incredible possibilities of the material you're leaving behind on your sheet of paper.—K. Ramsayer

Pencil Thin
Pencil Thin








Designed and Powered by HBJamaica.com™