Agriculture
Growing Healthier Tomato Plants
Springing forward
Flush-Free Fertilizer
Amphibians
Bullfrogs
Toads
Tree Frogs
Animals
Armadillo
Thieves of a Feather
The Littlest Lemurs
Behavior
Body clocks
The Smell of Trust
Mind-reading Machine
Birds
Vultures
Condors
Storks
Chemistry and Materials
Moon Crash, Splash
The hungry blob at the edge of the universe
Unscrambling a Gem of a Mystery
Computers
Secrets of an Ancient Computer
Play for Science
Lighting goes digital
Dinosaurs and Fossils
Some Dinos Dined on Grass
Have shell, will travel
Middle school science adventures
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
Shrinking Glaciers
A Dire Shortage of Water
Riding to Earth's Core
Environment
When Fungi and Algae Marry
Pollution Detective
Food Web Woes
Finding the Past
Meet your mysterious relative
A Big Discovery about Little People
Writing on eggshells
Fish
Skates and Rays
Hammerhead Sharks
Sharks
Food and Nutrition
The Essence of Celery
Allergies: From Bee Stings to Peanuts
Making good, brown fat
GSAT English Rules
Who vs. That vs. Which
Who vs. Whom
Whoever vs. Whomever
GSAT Exam Preparation Jamaica
GSAT Scholarship
How are students placed after passing the GSAT exam
Ministry of Education Announces 82 GSAT Scholarships for 2010
GSAT Exams Jamaica Scholarships
Results of GSAT are in schools this week
Access denied - Disabled boy aces GSAT
GSAT Exam Preparation
GSAT Mathematics
Deep-space dancers
It's a Math World for Animals
10 Common Mistakes When Preparing for the GSAT Math Test
Human Body
Opening a Channel for Tasting Salt
Heart Revival
Electricity's Spark of Life
Invertebrates
Hermit Crabs
Bees
Crabs
Mammals
Wolves
Weasels
Gerbils
Parents
Expert report highlights the importance to parents of reading to children!
Choosing a Preschool: What to Consider
Raise a Lifelong Reader by Reading Aloud
Physics
Electric Backpack
Thinner Air, Less Splatter
One ring around them all
Plants
Fastest Plant on Earth
Bright Blooms That Glow
Sweet, Sticky Science
Reptiles
Turtles
Gila Monsters
Iguanas
Space and Astronomy
A Planet's Slim-Fast Plan
Return to Space
A Very Distant Planet Says "Cheese"
Technology and Engineering
Slip Sliming Away
Sugar Power for Cell Phones
Crime Lab
The Parts of Speech
Pronouns
What is a Preposition?
What is a Verb?
Transportation
Middle school science adventures
Revving Up Green Machines
Ready, unplug, drive
Weather
The Best Defense Is a Good Snow Fence
Watering the Air
In Antarctica watch the heat (and your step)
Add your Article

Unscrambling a Gem of a Mystery

Hidden inside every shiny green emerald is a geographical mystery. Once an emerald is plucked from a mine in its home country and turned into a piece of jewelry, it can be nearly impossible to figure out where the gem came from in the first place. Now, researchers from France think they have found a solution. It's all about the water. Molecules of water are trapped inside tiny channels in every emerald. Water has the chemical formula H2O. This means that each molecule of water is made up of three atoms: two atoms of hydrogen (H) and one atom of oxygen (O). There are several types of hydrogen atoms. One unusual type, called deuterium, weighs twice as much as the type of hydrogen most commonly found. Some water molecules contain the heavier form of hydrogen instead of the lighter one. It turns out that when you shine a special kind of laser light on an emerald, the heavy hydrogen reacts differently in emeralds from different parts of the world. This signal reveals where a certain emerald came from. So far, the researchers have used their method to trace emeralds to 10 specific mines in seven countries. They can also tell the difference between natural emeralds and human-made ones. Emeralds from some countries cost more than others, so the new technique might help jewelry sellers determine how much their gems are truly worth. It could also help historians trace ancient trade routes. So, every gem carries its own story, and researchers are starting to translate it into a language that we can all understand.E. Sohn

Unscrambling a Gem of a Mystery
Unscrambling a Gem of a Mystery








Designed and Powered by HBJamaica.com™