Vermiponics roundup: The beauty of worms in hydroponic gardens (Video) (POSM Note: because of the high use of water in hydroponics versus Aquaponics, hydroponics is obsolete from a sustainability stand point. Aquaponics makes use of Vermiponics).
Garden Tower Project is raising funds for The New Garden Tower - Powering a Fresh Food Revolution on Kickstarter! Grow 50 plants in just 4 square feet -- from almost anywhere. Fueled by vermi-composting, Garden Tower 2 is a revolution in fresh food!
Epic Greenhouse Rocket Mass Heater - The insulation board has be laid in on the floor of the thermal-mass trench, inches of gravel added, and now the pipe has been assembled with a single screw holding each section of pipe together.
Cost of shipping a dimensional object wide makes this something to make on site. A roll bender, 2 steel pipe and 6 pvc pipe are the main materials. The larger the diameter the higher the yield in the area.