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Treating peanut allergy bit by bit
Seeds of the Future
Growing Healthier Tomato Plants
Amphibians
Bullfrogs
Frogs and Toads
Tree Frogs
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Jay Watch
Fishy Sounds
Odor-Chasing Penguins
Behavior
Night of the living ants
Math is a real brain bender
Making light of sleep
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Kingfishers
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Sticky Silky Feet
Pencil Thin
The hottest soup in New York
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New twists for phantom limbs
Music of the Future
A Classroom of the Mind
Dinosaurs and Fossils
Fossil Forests
A Living Fossil
Feathered Fossils
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
Earth
Groundwater and the Water Cycle
Flower family knows its roots
The Rise of Yellowstone
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City Trees Beat Country Trees
Nanosponges Soak Up Pollutants
Ready, unplug, drive
Finding the Past
Childhood's Long History
Digging Up Stone Age Art
Settling the Americas
Fish
Barracudas
Lungfish
Basking Sharks
Food and Nutrition
A Pepper Part that Burns Fat
Yummy bugs
Building a Food Pyramid
GSAT English Rules
Finding Subjects and Verbs
Adjectives and Adverbs
Problems with Prepositions
GSAT Exam Preparation Jamaica
2014 GSAT Results for Jamaican Kids
Tarrant High overcoming the odds
42,000 students will sit for the GSAT Exam in two weeks
GSAT Exams Jamaica Scholarships
42,000 students will sit for the GSAT Exam in two weeks
GSAT Scholarship
GSAT stars reap scholarship glory
GSAT Mathematics
Setting a Prime Number Record
Deep-space dancers
GSAT Practice Papers | GSAT Mathematics | Maths
Human Body
From Stem Cell to Any Cell
Attacking Asthma
Walking to Exercise the Brain
Invertebrates
Crabs
Grasshoppers
Sponges
Mammals
Wombats
Opposum
Wildcats
Parents
How children learn
What Not to Say to Emerging Readers
Expert report highlights the importance to parents of reading to children!
Physics
Thinner Air, Less Splatter
The Particle Zoo
Electric Backpack
Plants
Tracking the Sun Improves Plant Pollen
A Giant Flower's New Family
Fungus Hunt
Reptiles
Boa Constrictors
Garter Snakes
Reptiles
Space and Astronomy
Pluto, plutoid: What's in a name?
Planning for Mars
A Galaxy Far, Far, Far Away
Technology and Engineering
Supersuits for Superheroes
A Clean Getaway
Riding Sunlight
The Parts of Speech
Adjectives and Adverbs
What is a Verb?
Countable and Uncountable Nouns
Transportation
Reach for the Sky
Robots on the Road, Again
Ready, unplug, drive
Weather
Antarctica warms, which threatens penguins
Where rivers run uphill
Weekend Weather Really Is Different
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Beyond Bar Codes

In the future, your refrigerator might alert you when the milk has gone sour. At the grocery store, cashiers won't need to scan bar codes because products will provide the data on their own. And packages and letters will carry electronic tags that send messages about where they are. To make such a world possible, scientists are working on a technology called radiofrequency identification (RFID). An RFID tag is an electronic device that can be glued to cereal boxes, milk cartons, envelopes, and other objects. The tags store information and use radio signals to communicate with computers or sensors. RFID tags already exist in the form of "smart cards" that store dollar amounts for riders of some public transportation systems. RFID chips have also been implanted in animals to identify them and allow owners to find them if the animals get lost. In these cases, the tags are made of silicon, the material from which most computer chips are made. However, silicon electronic tags are too expensive to be used as widely as printed bar codes are. Now, scientists from two companies in Europe have independently taken steps toward speeding up the spread of RFID technology. They have created tags completely out of plastic materials with the right kinds of electronic properties to transmit radio signals efficiently. The methods for making plastic tags are much cheaper than those for making silicon tags. The tags produced by scientists from Philips Research Laboratories in Eindhoven in the Netherlands are made from a type of plastic called pentacene and transmit radio waves at a frequency of 13.56 megahertz. The tags produced by PolyIC in Erlangen, Germany, use a different type of plastic. Neither type of tag is perfect yet. The plastic tags are still expensive and tricky to manufacture, and their radio signals don't travel very far. It may be a few years yet before plastic RFIDs make their way into nearly all of our everyday objects. But when they do, there will be an amazing amount of information zooming invisibly around us.E. Sohn

Beyond Bar Codes
Beyond Bar Codes








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