Agriculture
Earth-Friendly Fabrics
Chicken Eggs as Drug Factories
Microbes at the Gas Pump
Amphibians
Frogs and Toads
Salamanders and Newts
Bullfrogs
Animals
Walks on the Wild Side
Monkeys Count
Mating Slows Down Prairie Dogs
Behavior
Swine flu goes global
Slumber by the numbers
Math Naturals
Birds
Doves
Pelicans
Ducks
Chemistry and Materials
Music of the Future
Sweeeet! The Skinny on Sugar Substitutes
Mother-of-Pearl on Ice
Computers
Play for Science
Galaxies on the go
The science of disappearing
Dinosaurs and Fossils
Tiny Pterodactyl
Mammals in the Shadow of Dinosaurs
Battling Mastodons
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
Earth
A Dire Shortage of Water
Challenging the Forces of Nature
Coral Gardens
Environment
Seabirds Deliver Arctic Pollutants
Shrinking Fish
The Wolf and the Cow
Finding the Past
Stone Tablet May Solve Maya Mystery
Digging Up Stone Age Art
Unearthing Ancient Astronomy
Fish
Angler Fish
Electric Eel
Manta Rays
Food and Nutrition
Building a Food Pyramid
In Search of the Perfect French Fry
Strong Bones for Life
GSAT English Rules
Who vs. Whom
Problems with Prepositions
Finding Subjects and Verbs
GSAT Exam Preparation Jamaica
GSAT Practice Papers | GSAT Mathematics | Maths
GSAT Exam Preparation
Scotiabank Jamaica Foundation Grade Six Achievement Test (GSAT) Scholarships
GSAT Exams Jamaica Scholarships
GSAT Scholarship
GSAT stars reap scholarship glory
Results of GSAT are in schools this week
GSAT Mathematics
Math Naturals
Prime Time for Cicadas
Math is a real brain bender
Human Body
Tapeworms and Drug Delivery
Teen Brains, Under Construction
A Long Haul
Invertebrates
Lobsters
Spiders
Clams
Mammals
Llamas
Wombats
Chinchillas
Parents
Expert report highlights the importance to parents of reading to children!
The Surprising Meaning and Benefits of Nursery Rhymes
Raise a Lifelong Reader by Reading Aloud
Physics
Invisibility Ring
The Particle Zoo
Road Bumps
Plants
Farms sprout in cities
A Change in Leaf Color
Nature's Alphabet
Reptiles
Asp
Alligators
Crocodiles
Space and Astronomy
Rover Makes Splash on Mars
Asteroid Moons
Cool as a Jupiter
Technology and Engineering
Sugar Power for Cell Phones
Smart Windows
Slip Sliming Away
The Parts of Speech
Pronouns
What is a Preposition?
What is a Verb?
Transportation
Robots on the Road, Again
Are Propellers Fin-ished?
Where rivers run uphill
Weather
A Change in Climate
Science loses out when ice caps melt
Warmest Year on Record
Add your Article

Cooking Up Superhard Diamonds

Diamonds are more than just sparkling gems. They also happen to be one of the hardest materials on Earth. Now, scientists have found a way to make diamonds even harder by cooking them under pressure with lots of heat. Using the new technique, Russell J. Hemley of the Carnegie Institution of Washington and his colleagues claim that they have made the hardest diamond crystal ever tested. All diamonds are made up of carbon atoms arranged in a regular pattern. Some diamonds come directly out of the ground. Some are made in the lab. To make the gems even harder, Hemley and his group first used a process called chemical-vapor deposition to add more carbon atoms to previously created artificial diamonds. They then cooked these new diamonds with lots of heat and pressure. Temperatures in the cooker reached 2,000 degrees Celsius. The pressure equaled that experienced 150 kilometers below Earth's surface. Under these conditions, the newly deposited diamonds became superhard. The new diamonds were so hard, the researchers say, that they broke equipment worth about $10,000 while testing them. The testing machines couldn't even dent or scratch some of the diamonds. The scientists say that they can adjust the cooking conditions to make their diamonds not only superhard but also supertough, so the gems won't crack or fracture easily. Superhard diamond would be ideal as a coating for industrial tools and medical implants and as the stuff from which to make electronic devices that work under extreme conditions. Individual gems would also make gorgeous, durable jewelry. The discovery of superhard and supertough diamonds could give new meaning to the old saying: Diamonds are forever.E. Sohn

Cooking Up Superhard Diamonds
Cooking Up Superhard Diamonds








Designed and Powered by HBJamaica.com™