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 ")

Wristify, Your Personal Cooling and Heating Device
'By law [a mandatory cooling unit] had to be strapped to every commuter's back...'- Philip K. Dick

Solar Roadways Could Power USA - Times 3
This would be great if it works - the roads might be better maintained as well.

Spaser-Based Circuits Could Be Printed On Clothing
'Alex rolled his wrist over to check the watch imprinted on his sleeve.'- Niven and Barnes, 1981.

Full-Size Invisibility Cloak Now Possible
'I donned it and drew its hood, and threw on its current.'- Ray Cummings, 1930.

 

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

Survival Seed Vault Low Cost Life Bank
'They existed in the Life Bank, as did virtually every plant...'

PoseiDrone Tentacled Undersea Robot Like HG Wells'
'Its motion was so swift, complex, and perfect that at first I did not see it as a machine...'

Bionic Hand Provides 'Lifelike' Sensations, Like Luke Skywalker's
'Take care, sir.'

Man-Made Space Leaf Creates Oxygen From Water And Light
'What better purifying machine is there than... grass?'

Robot With Broken Leg Learns To Walk Again
Robots that learn to walk again are now on the march.

World's First Android Newscaster (Video)
'The autonomic TV interviewer, camera in its hand, blocked his path.'

Japan Invites Robot Athletes To Gather For 2020 Olympics
It's time we started to get rid of that distinction between metal and flesh, and IC and neuron, don't you think?

CV Dazzle Anti-Surveillance Make-Up
Let's hear it for the vague blur!

LG Display's 18 Inch Flexible OLED Panel Is Awesomely Cool
'...a wide sheet of clear material suddenly flared with light and swirling color.'

Tiniest Microphone Inspired By Fly
'Transmitting to its manipulator, far away now, all that it heard through its ear microphones...'

NASA's Highway In The Sky For Drones
Traffic is everywhere.

Palcohol Powdered Alcohol - Try Or Ban?
'I had a small can of powdered alcohol disguised as tooth powder...'

pd.id Personal Drink ID Device Like Dune 'Poison Snooper'
'The jeweled hands clutching drinks (and the unobtrusive inspections with tiny remote-cast snoopers)...'

Monsieur Bartending Robot
'He poured the liquids into his maw...'

Cities Detect Gunfire Acoustics With ShotSpotter
'Sound trackers on the roof...'

Cruise Automation's 'Highway Autopilot' For $10K
'It cut her out of the stream of vehicles and reduced the speed of her car...'

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.