“On school-day mornings, I walk my grade-school-age son…

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“On school-day mornings, I walk my grade-school-age son…

“On school-day mornings, I walk my grade-school-age son 400 meters down the hill to the bus stop. Last winter, I fantasized about sitting at my computer while a camera-equipped drone followed him overhead.
 So this year, I set out to build one. For the basic airframe, I selected a quadcopter design for its maneuverability and ability to hover. Construction was straightforward: You can buy a quadcopter kit with all the pieces or, as I did, get parts separately and spend more time on system integration.”

The DIY Kid-tracking Drone – IEEE Spectrum, via @justinpickard

The future of fuel has gone to sh*%.

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The future of fuel has gone to sh*%.

Everybody poops, including panda bears. (See about 0:35 in the above video for evidence.) But panda poop could turn out to be quite a bit more important than your average animal excrement. That’s because scientists are “mining” it for bacteria that could help make better biofuel.

The key problem with biofuel today is that the stuff that’s actually economical to produce — i.e., corn ethanol — isn’t really that great for the environment. Corn farming uses a lot of fertilizer, water, and herbicide. Using corn that was previously grown for food to make fuel, instead, can lead to deforestation as people clear land to make up for the lost food farming. Some models of carbon dioxide emissions suggest that, by the time you factor in things like fossil-fuel derived fertilizers and the deforestation, a gallon of corn ethanol might not be any better for climate change than a gallon of gasoline. Not all the models agree on that. But even if corn ethanol produces fewer carbon emissions than gas, you still have to deal with the fact that growing nutrient-hungry corn on the same patch of ground over and over and over is really bad for local soil and water quality.

Cellulosic ethanol could be a much better alternative — particularly cellulosic ethanol made from native, perennial plants that don’t require heavy inputs to thrive and actually improve the health of the land they’re grown on. The problem: Converting those plants into fuel is, so far, a lot more expensive. Cellulose — the plant fiber that makes up things like stalks of bamboo and tall prairie grasses — is tough stuff and hard to break down.

That’s where panda poop comes in. Pandas process tons of cellulose every day, right in their guts. Maybe the bacteria that work for them could work for us, too.

Read more about this research at Chemical and Engineering News


Danish entrepreneur helps people with autism get jobs that require focus, attention to detail

Danish entrepreneur helps people with autism get jobs that require focus, attention to detail:
Gareth Cook tells the story of Thorkil Sonne, founder of a Danish social enterprise called Specialisterne (“the specialists”), which helps place people with autism in jobs that demand a degree of focus and detail-orientation that’s impossible to find among the neurotypical. Specialisterne began because Sonne’s son, Lars, has autism, and Sonne saw that he was eminently suited to many tasks, and that performing them made him happy and did useful work, too. Now Specialisterne is a web of social enterprises that does everything from training to placement, and Sonne is pondering a move to the USA.

To his father, Lars seemed less defined by deficits than by his unusual skills. And those skills, like intense focus and careful execution, were exactly the ones that Sonne, who was the technical director at a spinoff of TDC, Denmark’s largest telecommunications company, often looked for in his own employees. Sonne did not consider himself an entrepreneurial type, but watching Lars — and hearing similar stories from parents he met volunteering with an autism organization — he slowly conceived a business plan: many companies struggle to find workers who can perform specific, often tedious tasks, like data entry or software testing; some autistic people would be exceptionally good at those tasks. So in 2003, Sonne quit his job, mortgaged the family’s home, took a two-day accounting course and started a company called Specialisterne, Danish for “the specialists,” on the theory that, given the right environment, an autistic adult could not just hold down a job but also be the best person for it.

The Autism Advantage [NYT]

(via Kottke)


How monoculture farming changes biodiversity

How monoculture farming changes biodiversity:

This image, taken by artist David Liittschwager shows the plants and animals collected in a square meter of South African public park over the course of 24 hours.

This image, from National Public Radio, illustrates the plants and animals found over the course of two nights and three days in an Iowa cornfield.

Robert Krulwich has a fascinating piece about the ways food systems affect ecological systems. How efficient is too efficient?


Via On Earth


The Parlour Trick, With Meredith Yayanos: A Spooky Joy

[Warren Ellis says:]
The Parlour Trick, With Meredith Yayanos: A Spooky Joy:
Meredith Yayanos is one of my oldest friends.  You may know her from arts journalism, from performing as a musician with Amanda Palmer or Jim Sclavunos’ The Vanity Set, or from co-founding COILHOUSE magazine.  Now, with multi-instrumentalist Dan Cantrell, she has formed The Parlour Trick in order to release the album A BLESSED UNREST.  And you can pre-order it, with various levels of additionally beauty, via Kickstarter.  It actually got funded within hours of going live.  But, please, click through.  If you like even some of the music you’ve heard here over the years, then I suspect you’ll enjoy this.  It’s an amazing record.

Interactive laser-cutter

[So cool. I’d really, really love to spend a month or so playing with one of these. -egg]

Interactive laser-cutter:

Constructable is an experimental laser-cutter from the Hasso Plattner Institute in Potsdam. It uses a light-pen to direct the cutting beam, so that you can draw the cuts freehand, in realtime, rather than designing a pattern that is fed to the cutter. Basically, it transforms the cutter into a hand tool, rather than a programmable plotter.

Personal fabrication tools, such as laser cutters and 3D printers allow users to create precise objects quickly. However, working through a CAD system removes users from the workpiece. Recent interactive fabrication tools reintroduce this directness, but at the expense of precision.

Constructable is an interactive drafting table that produces precise physical output in every step. Users interact by drafting directly on the workpiece using a hand-held laser pointer. The system tracks the pointer, beautifies its path, and implements its effect by cutting the workpiece using a fast high-powered laser cutter.

Hasso-Plattner-Institut: constructable

(via Kottke)