Agriculture
Making the most of a meal
Silk’s superpowers
Watering the Air
Amphibians
Bullfrogs
Poison Dart Frogs
Toads
Animals
Walks on the Wild Side
Polly Shouldn't Get a Cracker
Roboroach and Company
Behavior
Memory by Hypnosis
Swine flu goes global
Monkeys in the Mirror
Birds
Hummingbirds
Pigeons
Finches
Chemistry and Materials
The memory of a material
The Buzz about Caffeine
The hottest soup in New York
Computers
Nonstop Robot
Hubble trouble doubled
Secrets of an Ancient Computer
Dinosaurs and Fossils
The man who rocked biology to its core
Fingerprinting Fossils
Mammals in the Shadow of Dinosaurs
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
The Rise of Yellowstone
Polar Ice Feels the Heat
Earth from the inside out
Environment
When Fungi and Algae Marry
A Vulture's Hidden Enemy
Will Climate Change Depose Monarchs?
Finding the Past
Writing on eggshells
Settling the Americas
Prehistoric Trips to the Dentist
Fish
Lungfish
Seahorses
Lampreys
Food and Nutrition
Recipe for Health
Symbols from the Stone Age
The Color of Health
GSAT English Rules
Subject and Verb Agreement
Capitalization Rules
Adjectives and Adverbs
GSAT Exam Preparation Jamaica
Preparing for the GSAT Exam
How are students placed after passing the GSAT exam
The Annual GSAT Scholarships
GSAT Exams Jamaica Scholarships
Access denied - Disabled boy aces GSAT
GSAT Exam Preparation
GSAT stars reap scholarship glory
GSAT Mathematics
Math of the World
GSAT Practice Papers | GSAT Mathematics | Maths
Setting a Prime Number Record
Human Body
Hey batter, wake up!
A Sour Taste in Your Mouth
Electricity's Spark of Life
Invertebrates
Snails
Camel Spiders
Giant Clam
Mammals
African Leopards
Humpback Whales
Moles
Parents
How children learn
What Not to Say to Emerging Readers
Raise a Lifelong Reader by Reading Aloud
Physics
Project Music
The Particle Zoo
IceCube Science
Plants
Bright Blooms That Glow
Pumping Up Poison Ivy
White fuzzy mold not as friendly as it looks
Reptiles
Turtles
Box Turtles
Gila Monsters
Space and Astronomy
A Family in Space
A Planet's Slim-Fast Plan
Ringing Saturn
Technology and Engineering
A Clean Getaway
Space Umbrellas to Shield Earth
Musclebots Take Some Steps
The Parts of Speech
Adjectives and Adverbs
What is a Preposition?
What is a Noun
Transportation
Ready, unplug, drive
Flying the Hyper Skies
Troubles with Hubble
Weather
Warmest Year on Record
Science loses out when ice caps melt
Where rivers run uphill
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™