Chinese Wheelbarrow, Meet the Honey Badger Wheel

March 30, 2016 by kris de decker Filed Under: Cargo, Random, Travel, Wheelbarrows

modern variant of the chinese wheelbarrow

Mike Merrell writes us:

“I’ve really enjoyed reading articles on your site since I found the article on the Chinese Wheelbarrow. I stumbled upon it when I was looking for information on the wheelbarrow, and I was immediately hooked. It turned out to be some of my inspiration for our new product we’re calling the Honey Badger Wheel. Our Kickstarter project began March 10th and will run until April 30th.”

“Because you provide awesome content for all of us interested in simple technologies with big benefits, would you be interested in running an article on your site about the modern interpretation of the Chinese Wheelbarrow? My hope is that it would add value to your audience, especially since it’s in line with with new and exciting info for us techies. On a more personal note, I appreciate the boosts of small inspiration from your site that lead to big ideas.”

[Read more…]

Human Powered Level Luffing Crane

March 26, 2016 by kris de decker Filed Under: Cranes & lifting devices, Human power, Random

level luffing lever crane 1870

“An French illustration from 1870 shows us the unusual ways in which hand-driving lifting devices were used in the period. Push carts almost two metres long were lifted to 9.2 metres by hand cranks via an 11.5 metre long luffing lever, also operated by a worker, and then pushed further along a wooden path to a tipping point. This daring construction was almost 18 metres tall.”

Find the complete illustration here. Source: “Portefeuille économique des machines, de l’outillage et du matériel“, December 1870, Bibliothèque nationale de France. Text: “The History of Cranes (The Classic Construction Series)“, Oliver Bachmann,1997.

How to Build a Biosand Water Filter Using a Wood Mold

March 23, 2016 by kris de decker Filed Under: DIY, Random, Water

biosand filtersBiosand Filters use sand, gravel, and natural biological process to filter out contaminants in water, making it safe for drinking. They’re a great low-tech drinking water solution:

  • No electricity or running parts to operate the filter
  • Made with 100% locally available materials (unlike larger community based systems where foreign parts typically need to be imported)
  • Labor intensive NOT capital intensive
  • Very durable, can last more than 25 years if maintained properly
  • Little maintenance required
  • Very effective for removing bacteria, protozoa, helminths from water and reducing turbidity

The main problem with concrete biosand filters is they require a heavy, expensive steel mold to make. [Read more…]

DIY Tools that Serve Disabled People’s Unique Needs

March 22, 2016 by kris de decker Filed Under: DIY, Random

low-tech hacked prosthetics

“In response to a heart attack, Cindy experienced an adverse reaction to medication and multiple organ failure. These complications resulted in amputations involving all four limbs: both of her legs below the knees and varying amounts of each of her fingers. With time, though, Cindy regained her ability to walk and started to find a “new normal.” She got great care from occupational therapists, physical therapists, physicians, and prosthetists.

But she found that the standard tools provided to her, even at a top-flight rehab hospital, didn’t facilitate some of the most important things she wanted to recover—how to write a thank you note, feed herself, put on makeup and jewelry, turn the pages in a picture book as she reads to her grandchildren. So Cindy started to design and build what she needed. From small hacks on her hand cream jar to repurposing cable ties for pulling out drawers and salad tongs for holding a sandwich, Cindy has embraced an everyday engineering ethic that she never thought possible. [Read more…]

Hand Crank Marble Machine

March 3, 2016 by kris de decker Filed Under: Art, Human power, Musical Instruments

low-tech music“The Wintergartan Marble Machine, built by Swedish musician Martin Molin and filmed by Hannes Knutsson, is a hand-made music box that powers a kick drum, bass, vibraphone and other instruments using a hand crank and 2,000 marbles.”

Read more at Wired: Wintergatan’s ‘Marble Machine’ makes music with 2,000 marbles.

Transcontinental Old School Cycle Race

March 1, 2016 by kris de decker Filed Under: Bicycles, Bikes, Racing

transcontinental cycle race

“In the early days of bicycle racing there was a time when plucky riders took on long hard races alone with no team cars and soigneurs to look after them.  They were hardy and desperate men who ate what they could find, slept when they could and rode all day.  They weren’t professional athletes or men of means, they were “mavericks, vagabonds and adventurers” who picked up a bicycle and went to seek their fortune.

The founders of the Tour de France wanted to create a race of thousands of miles of cycling, whatever the weather and road conditions where “even the best will take a beating”  Often they would race long into the night to distances of over 400 km each day in stages that would take more than 18 hours.  Henri Desgrange, the father of the tour once noted that “the ideal Tour would be a Tour in which only one rider survives the ordeal.”

Somewhere along the way from a variety of influences, the grand tours changed to become what they are today; a race of the elite, held apart from the common cyclist by budgets, sanctions and industry.  Don’t get us wrong, the Grand Tours as they are now are great and exciting things.  We however also like the old way where a rider can simply pick up a bike, shake hands on the start line and race thousands of miles for the pure satisfaction of sport and no other motive but for the learnings of one’s self.”

The Transcontinental is a low impact, self supported cycle race. Now in it’s 4th year, it will travel between Geraardsbergen in Flanders and Canakkale in Turkey passing through control points in the Auvergne region of France, Switzerland, the Dolomites in Italy and Durmitor national park in Montenegro. Entries for 2016 are closed, but the organisers are looking for volunteers, who will be eligible for a priority application in next year’s race.