Agriculture
Watering the Air
Earth-Friendly Fabrics
Fast-flying fungal spores
Amphibians
Salamanders and Newts
Toads
Salamanders
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Bee Heat Cooks Invaders
Poor Devils
Cacophony Acoustics
Behavior
Hitting the redo button on evolution
Flower family knows its roots
Honeybees do the wave
Birds
Crows
Penguins
Condors
Chemistry and Materials
Makeup Science
Batteries built by Viruses
Bandages that could bite back
Computers
It's a Small E-mail World After All
Toxic Dirt + Avian Flu = Science Fair Success
Seen on the Science Fair Scene
Dinosaurs and Fossils
Dinosaur Dig
A Really Big (but Extinct) Rodent
Middle school science adventures
E Learning Jamaica
2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Earth
Bugs with Gas
What is groundwater
A Great Quake Coming?
Environment
What is groundwater
The Best Defense Is a Good Snow Fence
Nanosponges Soak Up Pollutants
Finding the Past
Writing on eggshells
Of Lice and Old Clothes
Chicken of the Sea
Fish
Lungfish
Whale Sharks
Swordfish
Food and Nutrition
Allergies: From Bee Stings to Peanuts
Building a Food Pyramid
A Taste for Cheese
GSAT English Rules
Problems with Prepositions
Finding Subjects and Verbs
Subject and Verb Agreement
GSAT Exam Preparation Jamaica
2014 GSAT Results for Jamaican Kids
March 21-22, 2013: Over 43,000 students will take the GSAT Exam
Mastering The GSAT Exam
GSAT Exams Jamaica Scholarships
GSAT stars reap scholarship glory
42,000 students will sit for the GSAT Exam in two weeks
Results of GSAT are in schools this week
GSAT Mathematics
Play for Science
Math of the World
Detecting True Art
Human Body
Tapeworms and Drug Delivery
Don't Eat That Sandwich!
Cell Phones and Possible Health Hazards
Invertebrates
Octopuses
Centipedes
Giant Squid
Mammals
St. Bernards
Rhinoceros
Foxes
Parents
Children and Media
How children learn
The Surprising Meaning and Benefits of Nursery Rhymes
Physics
IceCube Science
Gaining a Swift Lift
Strange Universe: The Stuff of Darkness
Plants
Tracking the Sun Improves Plant Pollen
When Fungi and Algae Marry
Hungry bug seeks hot meal
Reptiles
Cobras
Lizards
Copperhead Snakes
Space and Astronomy
Baby Star
A Moon's Icy Spray
Planning for Mars
Technology and Engineering
A Light Delay
Weaving with Light
Supersuits for Superheroes
The Parts of Speech
Countable and Uncountable Nouns
What is a Noun
Pronouns
Transportation
Where rivers run uphill
Are Propellers Fin-ished?
Ready, unplug, drive
Weather
Polar Ice Feels the Heat
Recipe for a Hurricane
A Change in Climate
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Quick Quake Alerts

The ground shakes. Dishes fall off shelves. Houses collapse. Cars topple over bridges. Every year, earthquakes destroy homes and schools, and they kill many thousands of people around the world. Even scarier, it's impossible to know exactly when and where the next one will strike. A system of detectors in Los Angeles might be able to warn that an earthquake is coming, according to a new analysis. Even if the alarm comes only a few seconds before the quake, the system could save lives. Earthquakes cause a few different kinds of underground vibrations. One kind are called P waves, which travel quickly through Earth and rarely cause damage. The S waves that follow are more dangerous. They travel half as fast and shake the ground from side to side. Richard M. Allen of the University of Wisconsin-Madison and his colleagues analyzed ground motions from 53 fairly strong earthquakes that have struck Los Angeles since 1995. By looking at the first few seconds of a quake’s P wave, they found they could predict how big the oncoming S wave would be. Using detectors already in place throughout Los Angeles could give residents at least a few seconds warning that a quake is coming, Allen suggests. That wouldn’t be enough time to run away. But a siren or Internet message could save lives by giving people time to shut off power and stop trains. Kids in school could dive under their desks. The system wouldn’t make earthquakes any less scary, but at least you’d know what was coming!—E. Sohn

Quick Quake Alerts
Quick Quake Alerts








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