Backpack Generator Harnesses Power Of Walking

A backpack generator designed by Lawrence Rome and colleagues at the University of Pennsylvania is able to convert the vigorous strides of hikers into more than 7 watts of usable power. That's enough for emergency workers to power a GPS locator and a head-lamp indefinitely.


(Backpack Generator worn by Lawrence Rome)

The pack is spring-loaded, and mounted on rails to slide up and down as the wearer strides along. This motion moves a toothed rod, which meshes with a gearwheel, which turns to generate electricity. As you might guess, the heavier the load, the more power is generated - but the harder it is too walk. However, research showed [I just love that whole "reality-based" approach] that wearers alter their gait to walk more efficiently when wearing the sliding pack.


(Lawrence Rome Backpack Generator Diagram)

My first introduction to the idea of generating power from ordinary human motions was in Dune, the classic sf novel by Frank Herbert. In the novel, he writes about stillsuits that utilize the power of human locomotion. Stillsuits are used to capture and recycle human perspiration on a planet almost devoid of surface water:

Perspiration passes through it, having cooled the body. Motions of the body, especially breathing, and some osmotic action provide the pumping force. With a Fremen suit in good working order, you won't lose more than a thimbleful of moisture a day - even if you're caught in the Great Erg. (Read more about Frank Herbert's stillsuit)

I wonder if Lawrence considered tightening the harness just a bit, to take advantage of the chest expansion and compression?

Read more about the backpack generator. Also, take a look in the comments for this story to see a nineteenth century example of harnessing natural body motions (can you think of an earlier one?)

Scroll down for more stories in the same category. (Story submitted 9/10/2005)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 6 )

Related News Stories - (" Engineering ")

Integrated Circuits Printed Right Onto Fabric!
'...a shirt that displayed email on its sleeve. - Margaret Atwood, 2003.

Drones Guided By The Mind Alone
'His treads left no tracks upon the floor...' - Clifford Simak, 1961.

3D Printed Artificial Muscles Are Stronger Than Yours
Bots don't need to work out.

Crazyflie Drone Swarm Technology
'...Programmed to hang in space in a hexagonal grid pattern.' - Neal Stephenson, 1995.

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

 

Current News

China Melts Tibetan Permafrost To Plant Forest
'Can you give us a microwave spotlight?'

iFlytek Doctor Robot First To Pass Medical Exams
Doctor shortage? No problem, we'll just use the autodoc.

Slaughterbot AI KIller Quadcopter Drones
'The real border was defended by... a swarm of quasi-independent aerostats.'

Do We Really Want Backflipping Robots?
Also includes wonderful blooper reel.

RNA-Based Biocomputing Device
Living things can sense and analyze complex signals in living cells.

Seasteading Floating Cities
'It was a remarkable island, circular, about half a kilometer in diameter.'

Tesla Semi 'Electrotruck' Unveiled
Elon Musk unveils yet another technological marvel.

Watch What People Are Seeing Via Brain Scanning
'had managed to see through the other man's eyes as the other man, all unaware, washed their Zis limousine sixteen hundred meters away...'

Integrated Circuits Printed Right Onto Fabric!
'...a shirt that displayed email on its sleeve.

Interstellar Asteroid Visits Our Solar System
'This asteroid had whirled in from the cold of the interplanetary space...'

PRIMA Bionic Vision Restoration
'The VISOR... was a medical device used in the Federation to aid patients who have suffered loss of eyesight...'

Audi Traffic Jam Pilot Knows If You're Sleeping
'Even here, riding a garbage truck to eternity, the machine watched him...'

UM Hall Thruster Breaks Records
Someday, we'll see an ion drive used to get to Mars.

Ionity Ultra-fast Charging Station Network
'Recharge the batteries... in almost every town and village...'

VAuth Voice Security Wearable From University of Michigan
'Siri, I gave you a voice command...' 'Yes, but do I know you?'

Ubiquiti FrontRow Camera Records Your Life
Why be choosy? Just upload your whole life to the Internet, and be done with it.

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.