Agriculture
Fast-flying fungal spores
Where Have All the Bees Gone?
Growing Healthier Tomato Plants
Amphibians
Salamanders
Tree Frogs
Newts
Animals
A Fallout Feast for Crabs
New Monkey Business
A Tongue and a Half
Behavior
Two monkeys see a more colorful world
Memory by Hypnosis
From dipping to fishing
Birds
Flamingos
Kingfishers
Chicken
Chemistry and Materials
The chemistry of sleeplessness
Supersonic Splash
Mother-of-Pearl on Ice
Computers
The Earth-bound asteroid scientists saw coming
A Classroom of the Mind
Look into My Eyes
Dinosaurs and Fossils
The man who rocked biology to its core
Dinosaur Eggs-citement
Feathered Fossils
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
Polar Ice Feels the Heat
Slip Slidin' Away—Under the Sea
Sky Dust Keeps Falling on Your Head
Environment
Bald Eagles Forever
When Fungi and Algae Marry
Easy Ways to Conserve Water
Finding the Past
A Long Haul
A Plankhouse Past
The Puzzle of Ancient Mariners
Fish
Flounder
Megamouth Sharks
Sturgeons
Food and Nutrition
Yummy bugs
A Pepper Part that Burns Fat
Chew for Health
GSAT English Rules
Adjectives and Adverbs
Capitalization Rules
Order of Adjectives
GSAT Exam Preparation Jamaica
The Annual GSAT Scholarships
10 Common Mistakes When Preparing for the GSAT Math Test
GSAT Exam Preparation
GSAT Exams Jamaica Scholarships
Access denied - Disabled boy aces GSAT
42,000 students will sit for the GSAT Exam in two weeks
2014 GSAT Results for Jamaican Kids
GSAT Mathematics
Deep-space dancers
Setting a Prime Number Record
Prime Time for Cicadas
Human Body
A Long Trek to Asia
Running with Sneaker Science
Dreaming makes perfect
Invertebrates
Beetles
Sea Urchin
Moths
Mammals
Humans
Cheetah
Antelope
Parents
Expert report highlights the importance to parents of reading to children!
The Surprising Meaning and Benefits of Nursery Rhymes
What Not to Say to Emerging Readers
Physics
One ring around them all
Black Hole Journey
Spin, Splat, and Scramble
Plants
Plants Travel Wind Highways
Fastest Plant on Earth
Getting the dirt on carbon
Reptiles
Crocodilians
Cobras
Snapping Turtles
Space and Astronomy
Galaxies Divide Sharply Along Color Lines
A Smashing Display
Roving the Red Planet
Technology and Engineering
Toy Challenge
Dancing with Robots
Musclebots Take Some Steps
The Parts of Speech
Adjectives and Adverbs
Pronouns
What is a Preposition?
Transportation
Ready, unplug, drive
Tinkering With the Basic Bike
Troubles with Hubble
Weather
The Best Defense Is a Good Snow Fence
Either Martians or Mars has gas
Where rivers run uphill
Add your Article

Earth from the inside out

Scientists have long known this strange fact: It’s easier to look deep into space than into the center of Earth. Light can pass through most of space, so the light from distant stars can easily be seen with the naked eye. But Earth is opaque, which means that light cannot pass through it. If light cannot pass through it, then we cannot see what’s on the inside of our planet. So if we can’t use light to see inside our own planet, what can we use? Recently, some scientists have been trying to use neutrinos — tiny particles smaller than an atom that zip through space. Neutrinos come from the sun or other distant stars, and astronomers have studied them for years. Now, a team of geoscientists — “geo” means Earth — think a kind of neutrino may have something to say about the Earth, too. Not all neutrinos come from outer space. Special neutrinos called geoneutrinos are generated from within the Earth. (Remember that “geo” means Earth.) Most of these local neutrinos come from either the crust or the mantle. The crust is Earth’s outermost shell, what we stand on, and the mantle is five to 25 miles below the crust. Certain elements within the Earth can send off geoneutrinos when undergoing a process called radioactive decay. During radioactive decay, a material loses some of its energy by sending out particles and radiation. An element that goes through this process is said to be radioactive, and radioactive elements occur naturally in the Earth. Some radioactive elements produce geoneutrinos. After they are produced, geoneutrinos pass straight through the solid Earth without being absorbed or bouncing around. If they’re not stopped, they go straight into outer space — and keep going, and going and going. Geoscientists hope to catch a few of these particles on their way out, but it’s not going to be easy. There are two big problems: There aren’t that many geoneutrinos, and they’re hard to find. To catch these elusive particles, scientists have designed special geoneutrino detectors. These strange-looking scientific instruments are giant, metal spheres buried deep underground. In an abandoned mine in Canada, for example, scientists are preparing a geoneutrino detector that is four stories tall and more than a mile underground. The detector will be filled with a special liquid that flashes when a geoneutrino passes through. The liquid “produces a lot of light, and it’s very transparent,” says Mark Chen, the director of the project. When it’s up and running, probably in 2010, the detector will find only about 50 geoneutrinos per year. Other detectors are being planned all over Earth — one of them is even supposed to sit on the bottom of the ocean! The geoscientists who study geoneutrinos hope that the particles will help answer an old question about the Earth. The interior of the Earth is blistering hot, but where does the heat come from? They know that part of the heat — maybe as much as 60 percent — comes from radioactive decay, but researchers want to know for sure. By measuring geoneutrinos, scientists hope to figure out how radioactive decay helps heat Earth.

Earth from the inside out
Earth from the inside out








Designed and Powered by HBJamaica.com™