Agriculture
Earth-Friendly Fabrics
Watering the Air
Got Milk? How?
Amphibians
Frogs and Toads
Salamanders and Newts
Bullfrogs
Animals
Stunts for High-Diving Ants
Glimpses of a Legendary Woodpecker
Staying Away from Sick Lobsters
Behavior
Storing Memories before Bedtime
World’s largest lizard is venomous too
Lightening Your Mood
Birds
Swifts
Lovebirds
Birds We Eat
Chemistry and Materials
A Spider's Silky Strength
Moon Crash, Splash
Nanomagnets Corral Oil
Computers
New twists for phantom limbs
A Light Delay
Look into My Eyes
Dinosaurs and Fossils
Have shell, will travel
Ancient Critter Caught Shedding Its Skin
Dino Flesh from Fossil Bone
E Learning Jamaica
2014 GSAT Results for Jamaican Kids
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Results of GSAT are in schools this week
Earth
Greener Diet
The Pacific Ocean's Bald Spot
Farms sprout in cities
Environment
Nanosponges Soak Up Pollutants
The Oily Gulf
Pollution Detective
Finding the Past
Oldest Writing in the New World
Digging Up Stone Age Art
Your inner Neandertal
Fish
Marlin
Tiger Sharks
Electric Ray
Food and Nutrition
The Color of Health
In Search of the Perfect French Fry
Turning to Sweets, Fats to Calm the Brain
GSAT English Rules
Pronouns
Who vs. Whom
Who vs. That vs. Which
GSAT Exam Preparation Jamaica
2014 GSAT Results for Jamaican Kids
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Mastering The GSAT Exam
GSAT Exams Jamaica Scholarships
Results of GSAT are in schools this week
42,000 students will sit for the GSAT Exam in two weeks
Access denied - Disabled boy aces GSAT
GSAT Mathematics
Math and our number sense: PassGSAT.com
Deep-space dancers
10 Common Mistakes When Preparing for the GSAT Math Test
Human Body
Speedy Gene Gives Runners a Boost
Teen Brains, Under Construction
Taste Messenger
Invertebrates
Arachnids
Lice
Dragonflies
Mammals
Sperm Whale
Capybaras
Coyotes
Parents
Children and Media
Expert report highlights the importance to parents of reading to children!
The Surprising Meaning and Benefits of Nursery Rhymes
Physics
One ring around them all
Einstein's Skateboard
Invisibility Ring
Plants
Surprise Visitor
Sweet, Sticky Science
Fastest Plant on Earth
Reptiles
Iguanas
Rattlesnakes
Snakes
Space and Astronomy
Evidence of a Wet Mars
The two faces of Mars
A Galaxy Far, Far, Far Away
Technology and Engineering
Musclebots Take Some Steps
Young Scientists Take Flight
Weaving with Light
The Parts of Speech
What is a Verb?
Countable and Uncountable Nouns
What is a Preposition?
Transportation
How to Fly Like a Bat
Where rivers run uphill
Charged cars that would charge
Weather
A Dire Shortage of Water
Watering the Air
Arctic Melt
Add your Article

A Volcano's Deadly Ash

Every few hundred years, a sleeping giant in southern Italy awakens with a bang, spewing volcanic ash across the countryside.

The volcano, called Mount Vesuvius, formed 25,000 years ago. During its most explosive eruptions, the volcano could blanket nearby cities with hot ash, sometimes also burying them with deadly flows of mud and rocks.

Mount Vesuvius, as seen from the ruins of Pompeii in southern Italy.

Mount Vesuvius, as seen from the ruins of Pompeii in southern Italy.

Wikipedia

One famous eruption occurred nearly 2,000 years ago, in the year 79 A.D. The blast lasted 18 hours and destroyed the Roman cities of Pompeii and Herculaneum, killing thousands of people as they tried to escape.

Scientists and city officials had supposed that Naples, one of Italy’s most populous cities, was far enough away that it would be safe from the volcano’s wrath. New evidence suggests that this might not be the case.

This map of a portion of southern Italy shows how ash from Mount Vesuvius could spread as far as the city of Naples (Napoli).

This map of a portion of southern Italy shows how ash from Mount Vesuvius could spread as far as the city of Naples (Napoli).

Proceedings of the National Academy of Sciences

Researchers recently discovered 4000-year-old layers of ash and mud under present-day Naples. Just outside the city, they also uncovered abandoned villages, as well as human and animal skeletons.

Most surprising of all, the researchers say, was the discovery of thousands of footprints from the same time period, pressed into layers of wet ash that had rained from the sky. The footprints show that thousands of people were fleeing to the northwest, away from the volcano, as it erupted.

Footprints, preserved in ash deposits, show that thousands of people fled an eruption at Mount Vesuvius 3,780 years ago.

Footprints, preserved in ash deposits, show that thousands of people fled an eruption at Mount Vesuvius 3,780 years ago.

Proceedings of the National Academy of Sciences

Mount Vesuvius hasn’t had a major eruption since 1631, but it’s still very active. And the discovery of the ancient ash layers, skeletons, and footprints are a warning that modern Naples, a city of 3 million people, isn’t safe from the volcano after all, scientists say.

So, when the volcano begins to rumble again, Naples should have an emergency evacuation plan ready—just in case.—C. Gramling

A Volcano's Deadly Ash
A Volcano's Deadly Ash








Designed and Powered by HBJamaica.com™