This month, GreenTechMedia highlighted obsolete greentech concepts that are making a go of it…again.
In this really cool list, GreenTechMedia features sixteen ideas that are centuries old, but are experiencing a re-birth in today’s green technology startups. The old-school concepts include:
1. Mashed Earth (www.integrityblock.com)
2. Solar-Thermal Water Heaters (www.mondial-energy.com )
3. Solar Lighting (www.sunlight-direct.com )
4. The Opposed Piston/Opposed Cylinder Engine (www.achatespower.com , www.ecomotors.com)
5. “Swirly” Water / Natural Water Flow (www.watreco.com , www.parc.com )
6. Dung (www.microgy.com)
7. Ambient Cooling (www.mkd-arc.com )
8. Electric Cars (www.teslamotors.com , www.think.no )
9. Biodiesel
10. Hemp
11. Zinc Batteries (www.powergenix.com , www.zpowerbattery.com , www.poweraircorp.com )
12. Plasma Lights (www.luxim.com )
13. Tidal Power
14. Thin Clients (www.wyse.com )
15. Geothermal Cooling
16. Tribal Warfare, Malaria, Limited Life Spans
Read the details (and witty commentary here) http://www.greentechmedia.com/articles/read/sixteen-ancient-technologies-reborn-5485/