Woodgas was used in Europe during WWII to power farm equipment through fuel shortages. This sustainable biofuel is making a comeback. Many websites provide a wealth of DIY information.
Up until now, every piece had to be individually designed and tweaked to get a functional system. Enter the GEK, a simple experimenter's kit that can be used to both create biofuel for vehicles, heat or electricity as well as producing biochar soil amendment to produce ever greater amounts of biomass, sequestering carbon in the process.

The GEK even has a community wiki/forum!

Amazing gallery of the Caspian Sea Monster. It's now a far cry from it's former glory.

Great for creating custom folders and menu/desktop shortcuts!

From the page: "Search through 152,863 icons or browse 451 icon sets"

Multi-core chips are quickly becoming the norm, but operating systems don't yet take advantage of this hardware. Using some code Google released to open source, it's now possible to parallelize tasks on multi-core systems. No only that, but it provides a fairly easy route to cluster computing

From the page: "One feature of ppss.sh was completely ignored until now. Since version 2.0 it is able to parallelize such kind of jobs not only over the x-cores of one machines, but distributed over x-cores of x-machines. So we have an easy way to do some HPC computing ! When the nodes of the HPC cluster were equipped with OpenCL or DirectCompute capable graphiccards, a simple way to a kind of numbercrunching HPC cluster might also be possible !"

If your desk space is at a premium, making your O-scope do double duty is a damn fine idea.

From the page: " The Terminalscope is a full, bidirectional serial terminal that uses a PS/2 keyboard for input and displays 54x24-character output on an oscilloscope or XY display. It can be connected to a PC via USB-to-TTL adapter or directly to another microcontroller."

Fascinating glimpse into a bygone age.

Below is the terminal interior of the long gone West Mesa Airfield near Albuquerque from the 30's. The runways were arranged in a eight pointed star pattern, too

From the page: "As a pilot, a particular interest of mine has always been the abandoned airfields that dot the landscape of much of this country. Both for their potential safety value to a pilot in an emergency, and also for their sometimes fascinating history, this particular topic has always held my curiosity. When I'm a passenger on commercial flights, I've always found myself looking out the window, constantly looking for airfields below. When I fly as a pilot myself, I've always tried to land at as many airports as possible,
to learn a little about each one."

Much easier to carry around a few SD cards and a USB reader than a portfolio of optical discs. Read access is much faster with flash than a disk. Additionally, optical disks are fragile and terribly prone to physical damage such as scratches.

Now to incorporate GRUB and select between several different distros...

From the page: "UNetbootin allows you to create bootable Live USB drives for a variety of Linux distributions from Windows or Linux, without requiring you to burn a CD. You can either let it download one of the many distributions supported out-of-the-box for you, or supply your own Linux .iso file if you've already downloaded one or your preferred distribution isn't on the list."

Hmmm, and open source franchise... This concept may have legs!

From the page: "Imagine just finishing a great dish at a restaurant and wishing you could make that at home. Well at the Instructables Restaurant you can do just that. In fact not only can you get the "source code" of the dish you ate, but you can download the plans to the furniture and fixtures as well."

Free (as in open source) VoIP listing.