Hungry bug seeks hot meal
Got Milk? How?
New Gene Fights Potato Blight
Tree Frogs
Putting a Mouse on Pause
Glimpses of a Legendary Woodpecker
Giving Sharks Safe Homes
Honeybees do the wave
Training Your Brain to Feel Less Pain
Chemistry and Materials
Supergoo to the rescue
Spinning Clay into Cotton
The Buzz about Caffeine
Computers with Attitude
It's a Small E-mail World After All
Fingerprint Evidence
Dinosaurs and Fossils
A Living Fossil
Early Birds Ready to Rumble
An Ancient Spider's Web
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's Poles in Peril
What is groundwater
Sky Dust Keeps Falling on Your Head
Plastic Meals for Seals
City Trees Beat Country Trees
Missing Tigers in India
Finding the Past
Preserving Ancient Warrior Paint
Settling the Americas
Words of the Distant Past
Bull Sharks
Basking Sharks
Food and Nutrition
A Taste for Cheese
Making good, brown fat
The mercury in that tuna
GSAT English Rules
Subject and Verb Agreement
Whoever vs. Whomever
GSAT Exam Preparation Jamaica
How are students placed after passing the GSAT exam
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
42,000 students will sit for the GSAT Exam in two weeks
GSAT Exams Jamaica Scholarships
Access denied - Disabled boy aces GSAT
GSAT Practice Papers | GSAT Mathematics | Maths
GSAT Scholarship
GSAT Mathematics
Math of the World
Losing with Heads or Tails
Detecting True Art
Human Body
Tapeworms and Drug Delivery
Workouts: Does Stretching Help?
Kids now getting 'adult' disease
Choosing a Preschool: What to Consider
Children and Media
The Surprising Meaning and Benefits of Nursery Rhymes
Spin, Splat, and Scramble
Powering Ball Lightning
The Mirror Universe of Antimatter
Farms sprout in cities
Making the most of a meal
The algae invasion
Garter Snakes
Space and Astronomy
Planets on the Edge
A Great Ball of Fire
A Dusty Birthplace
Technology and Engineering
Bionic Bacteria
Spinach Power for Solar Cells
Model Plane Flies the Atlantic
The Parts of Speech
Problems with Prepositions
What is a Noun
What is a Preposition?
Ready, unplug, drive
Seen on the Science Fair Scene
Middle school science adventures
Catching Some Rays
Either Martians or Mars has gas
A Dire Shortage of Water
Add your Article

Electric Backpack

Backpacks are convenient. They can hold your books, your lunch, and a change of clothes, leaving your hands free to do other things. Someday, if you don't mind carrying a heavy load, your backpack might also power your MP3 player, keep your cell phone running, and maybe even light your way home. Scientists from the University of Pennsylvania in Philadelphia and the Marine Biological Laboratory in Woods Hole, Mass., have invented a backpack that makes electricity from energy produced while its wearer walks. The backpack's electricity-creating powers depend on springs used to hang a cloth pack from its metal frame. The frame sits against the wearer's back, and the whole pack moves up and down as the person walks. A mechanism with gears collects energy from this motion and transfers it to an electrical generator. Surprisingly, the researchers found, people walk differently when they wear the springy packs. As a result, wearers use less energy than when lugging regular backpacks. Also, the way the new packs ride on wearers' backs makes them more comfortable than standard packs, the inventors say. The backpack could be especially useful for soldiers, scientists, mountaineers, and emergency workers who typically carry heavy backpacks. These people often rely on global positioning system (GPS) receivers, night-vision goggles, and other battery-powered devices to get around and do their work. Because the pack can make its own electricity, users don't need to give up space in their packs to lots of extra batteries. For the rest of us, power-generating backpacks could make it possible to walk, play video games, watch TV, and listen to music, all at the same time. Electricity-generating packs aren't on the market yet, but if you do get one eventually, just make sure to look both ways before crossing the street!E. Sohn

Electric Backpack
Electric Backpack

Designed and Powered by™