Agriculture
Where Have All the Bees Gone?
Fast-flying fungal spores
Vitamin D-licious Mushrooms
Amphibians
Salamanders
Salamanders and Newts
Toads
Animals
Sleepless at Sea
Assembling the Tree of Life
Odor-Chasing Penguins
Behavior
Math Naturals
From dipping to fishing
Baby Number Whizzes
Birds
Vultures
Carnivorous Birds
Storks
Chemistry and Materials
Lighting goes digital
When frog gender flips
Flytrap Machine
Computers
Hubble trouble doubled
Look into My Eyes
The Earth-bound asteroid scientists saw coming
Dinosaurs and Fossils
The bug that may have killed a dinosaur
Some Dinos Dined on Grass
The Paleontologist and the Three Dinosaurs
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
Hints of Life in Ancient Lava
Ice Age Melting and Rising Seas
Polar Ice Feels the Heat
Environment
The Birds are Falling
Watching for Wildfires in Yellowstone
A Newspaper's Hidden Cost
Finding the Past
Stonehenge Settlement
A Volcano's Deadly Ash
Traces of Ancient Campfires
Fish
Flounder
Barracudas
Marlin
Food and Nutrition
Food for Life
Turning to Sweets, Fats to Calm the Brain
The mercury in that tuna
GSAT English Rules
Subject and Verb Agreement
Pronouns
Finding Subjects and Verbs
GSAT Exam Preparation Jamaica
GSAT Exam Preparation
Preparing for the GSAT Exam
Results of GSAT are in schools this week
GSAT Exams Jamaica Scholarships
Results of GSAT are in schools this week
GSAT stars reap scholarship glory
42,000 students will sit for the GSAT Exam in two weeks
GSAT Mathematics
Math of the World
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
10 Common Mistakes When Preparing for the GSAT Math Test
Human Body
Disease Detectives
Workouts: Does Stretching Help?
The tell-tale bacteria
Invertebrates
Bees
Cockroaches
Hermit Crabs
Mammals
Yorkshire Terriers
Hares
Koalas
Parents
What Not to Say to Emerging Readers
Raise a Lifelong Reader by Reading Aloud
The Surprising Meaning and Benefits of Nursery Rhymes
Physics
Dreams of Floating in Space
Einstein's Skateboard
The Pressure of Scuba Diving
Plants
Bright Blooms That Glow
Springing forward
Plants Travel Wind Highways
Reptiles
Garter Snakes
Crocodilians
Snapping Turtles
Space and Astronomy
Phantom Energy and the Big Rip
A Planet from the Early Universe
Evidence of a Wet Mars
Technology and Engineering
A Light Delay
Squeezing Oil from Old Wells
Machine Copy
The Parts of Speech
What is a Noun
What is a Preposition?
Problems with Prepositions
Transportation
Troubles with Hubble
Where rivers run uphill
Are Propellers Fin-ished?
Weather
Earth's Poles in Peril
Warmest Year on Record
Science loses out when ice caps melt
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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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