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Where Have All the Bees Gone?
Tree Frogs
Poison Dart Frogs
Living in the Desert
Blotchy Face, Big-Time Wasp
Puberty gone wild
Taking a Spill for Science
Newly named fish crawls and hops
Flightless Birds
Chemistry and Materials
A Spider's Silky Strength
Atomic Drive
Popping to Perfection
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Nonstop Robot
Supersonic Splash
Dinosaurs and Fossils
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Feathered Fossils
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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
Ancient Heights
Farms sprout in cities
Killer Space Rock Snuffed Out Ancient Life
Sounds and Silence
A Change in Leaf Color
Missing Tigers in India
Finding the Past
Of Lice and Old Clothes
A Long Trek to Asia
Preserving Ancient Warrior Paint
Electric Eel
Food and Nutrition
The Color of Health
A Pepper Part that Burns Fat
Packing Fat
GSAT English Rules
Who vs. That vs. Which
Order of Adjectives
Whoever vs. Whomever
GSAT Exam Preparation Jamaica
2014 GSAT Results for Jamaican Kids
Scotiabank Jamaica Foundation Grade Six Achievement Test (GSAT) Scholarships
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2014 GSAT Results for Jamaican Kids
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How a Venus Flytrap Snaps Shut
Prime Time for Cicadas
It's a Math World for Animals
Human Body
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Football Scrapes and Nasty Infections
Horseshoe Crabs
Basset Hounds
The Surprising Meaning and Benefits of Nursery Rhymes
Children and Media
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Hold on to your stars, ladies and gentlemen
The Mirror Universe of Antimatter
Spin, Splat, and Scramble
Getting the dirt on carbon
Flower family knows its roots
Cactus Goo for Clean Water
Box Turtles
Black Mamba
Garter Snakes
Space and Astronomy
Big Galaxy Swallows Little Galaxy
Pluto, plutoid: What's in a name?
Holes in Martian moon mystery
Technology and Engineering
Squeezing Oil from Old Wells
A Light Delay
Reach for the Sky
The Parts of Speech
Problems with Prepositions
What is a Noun
Adjectives and Adverbs
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Robots on the Road, Again
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In Antarctica watch the heat (and your step)
Polar Ice Feels the Heat
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Losing with Heads or Tails

Heads, you win. Tails, you lose. It turns out that coin tosses may be less fair than you might think. A new mathematical analysis even suggests a way to increase your chances of winning. People use coin tosses all the time to make decisions and break ties. You've probably done it yourself to decide who gets the last piece of pizza or which team gets the ball first. Heads or tails? It's anybody's guess, but each side is supposed to have an equal chance of winning. That's not always true, say mathematicians from Stanford University and the University of California, Santa Cruz. For a coin toss to be truly random, they say, you have to flip the coin into the air so that it spins in just the right way. Most of the time, though, the coin doesn't spin perfectly. It might tip and wobble in the air. Sometimes it doesn't even flip over. In experiments, the researchers found that it's practically impossible to tell from watching a tossed coin whether it has flipped over. A tossed coin is typically in the air for just half a second, and a wobble can fool the eyes, no matter how carefully you watch. To see how wobbling affects the outcome, the researchers videotaped actual coin tosses and measured the angle of the coin in the air. They found that a coin has a 51 percent chance of landing on the side it started from. So, if heads is up to start with, there's a slightly bigger chance that a coin will land heads rather than tails. When it comes down to it, the odds aren't very different from 50-50. In fact, it would take about 10,000 tosses for you to really notice the difference. Still, when you're gunning for that last piece of candy, it can't hurt to have a leg up, no matter how small.E. Sohn

Losing with Heads or Tails
Losing with Heads or Tails

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