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 ")

'Liquid Light' Flows Around Corners
Light as a superfluid.

Does Earth's Middle Mantle Hold Oceans Of Water?
Al Gore, you have no idea.

Anti AI AI Wearable Detects Artificial Voices
Combats another wearable, the voice-changing bowtie.

Drones Will Transform Cities
Where we're going, we don't use roads.

 

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

TALOS Exoskeleton Development Proceeding
'Suited up, you look like a big steel gorilla...'

Autonomous Robots Navigate Like Rats
'Out of warrens in the wall, tiny robot mice darted.'

SINTEF Robot Cleans Solar Panels
'The window cleaners, with large padded feet...'

Pangorin Restaurant Service Robots
What'll you have? Jawa juice?

Drug Creates Real Melanin Tan
I've used them all my life...

Medical Drones Hover Like Angels Near You
'The death-reversal equipment is on its way...'

SkEye Amazing Israeli Gigapixel Drone
'An eye that could not only see, but fly...'

How Rude! DARPA Wants Robots To Behave More Like Threepio
'Do I know protocol? Why, it's my primary function.'

'Liquid Light' Flows Around Corners
Light as a superfluid.

Unrolling The Filmy Materials Of Space Tech
'When unfolded and unrolled... it became a tough, gleaming film.'

Buddy Companion Robot Your Bulbous Friend
'Nanny was built in the shape of a sphere, a large metal sphere, flattened on the bottom...'

Poli-X1 Prototype Bee Pollinator
Is there anything drones can't do?

Bake in Space Bake-Off... In Space!
'A joyous condition commenced for the cook in the electric kitchen...'

DeepMind AI Baffled By Homer Simpson, Needs Human Help
'Whenever a robot finds something it can't identify straight off...'

Does Earth's Middle Mantle Hold Oceans Of Water?
Al Gore, you have no idea.

Vaccine Blocks Heroin High
'You're biochemically incapable of getting off...'

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.