Archive for February, 2009
Google Calendar and contact syncing for iPhone and Windows Mobile devices
0Google just announced a new service for pushing Gmail contacts and Google Calendar updates to mobile devices. This is neat!
Forward Osmosis- revoluntionary water treatment?
1Cleantechnica has a post on Forward Osmosis. It is better explained here. The authors description in a gist:
…conventional desalination and reuse technologies use substantial energy. “forward osmosis,” exploits the natural diffusion of water through a semi-permeable membrane. Their process “draws” pure water from its contaminants to a solution of concentrated salts, which can easily be removed with low heat treatment — effectively desalinating or removing contaminants from water with little energy input.
The concentrated salt solution is probably a mixture of ammonia and/or carbon dioxide dissolved in water. The ammonia and CO are later easily boiled off and reused. The energy required for this quite less even low-cost solar heaters may be sufficient.