Watching out for vultures
Where Have All the Bees Gone?
Treating peanut allergy bit by bit
Frogs and Toads
New Monkey Business
Thieves of a Feather
Sleepless at Sea
Video Game Violence
Flower family knows its roots
Homework blues
Chemistry and Materials
Atomic Drive
Spinning Clay into Cotton
Salt secrets
A New Look at Saturn's rings
Getting in Touch with Touch
Lighting goes digital
Dinosaurs and Fossils
Ferocious Growth Spurts
Did Dinosaurs Do Handstands?
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
A Volcano Wakes Up
Riding to Earth's Core
Petrified Lightning
Antarctica warms, which threatens penguins
To Catch a Dragonfly
Bald Eagles Forever
Finding the Past
Salt and Early Civilization
Decoding a Beverage Jar
Stone Tablet May Solve Maya Mystery
Whale Sharks
Food and Nutrition
Chew for Health
Strong Bones for Life
Moving Good Fats from Fish to Mice
GSAT English Rules
Capitalization Rules
Adjectives and Adverbs
Finding Subjects and Verbs
GSAT Exam Preparation Jamaica
How are students placed after passing the GSAT exam
Results of GSAT are in schools this week
Mastering The GSAT Exam
GSAT Exams Jamaica Scholarships
GSAT Exam Preparation
Results of GSAT are in schools this week
GSAT stars reap scholarship glory
GSAT Mathematics
How a Venus Flytrap Snaps Shut
It's a Math World for Animals
A Sweet Advance in Candy Packing
Human Body
Nature's Medicines
Attacking Asthma
Gut Microbes and Weight
Guinea Pigs
How children learn
Choosing a Preschool: What to Consider
Expert report highlights the importance to parents of reading to children!
Thinner Air, Less Splatter
The Mirror Universe of Antimatter
Powering Ball Lightning
When Fungi and Algae Marry
Fungus Hunt
Getting the dirt on carbon
Garter Snakes
Space and Astronomy
Ready, Set, Supernova
A Whole Lot of Nothing
Gravity Tractor as Asteroid Mover
Technology and Engineering
Musclebots Take Some Steps
Shape Shifting
Riding Sunlight
The Parts of Speech
What is a Noun
Problems with Prepositions
What is a Verb?
Morphing a Wing to Save Fuel
Seen on the Science Fair Scene
Robots on the Road, Again
Earth's Poles in Peril
Where rivers run uphill
Catching Some Rays
Add your Article

Riding to Earth's Core

Ever wonder what you’d find if you could travel to the center of the earth? Someday, we might find out, says geophysicist David Stevenson of the California Institute of Technology. Stevenson has thought up a way to send a probe to Earth’s core. For now, his plan is mostly just a cool idea. Quite a few obstacles keep it from being practical. So far, the deepest anyone has drilled into the earth is 10 kilometers. The hard crust of continents probably goes down at least another 200 kilometers. Below that lies a gooey layer called the mantle, which surrounds a liquid outer core and a solid inner core. Both inner layers are made mostly of iron. Stevenson's idea is to blast a hole 300 meters deep and 10 centimeters wide. Into the hole, he would pour melted iron, which would flow downward and create enough pressure to push the crack to Earth's center. He estimates it would take the probe about a week to get there. Blasting a big enough crack would take about the same amount of energy as that contained in a basic hydrogen bomb. The biggest challenge would be building the probe. The center of the earth gets so hot and there is so much pressure that most metals would melt. Electronic equipment would fall apart. If scientists can ever find a way around those obstacles, they might get a new view of some of Earth's deepest secrets.—E. Sohn

Riding to Earth's Core
Riding to Earth's Core

Designed and Powered by™