Oct 18, 2008

Oct 7, 2008

The invisible and the non-existent look very much alike

The US Department of Homeland Security is developing a system designed to detect "hostile thoughts" in people walking through border posts, airports and public places. The DHS says recent tests prove it works.
'Pre-crime' detector shows promise
A 2005 DARPA report... proposes to "image through multiple walls and even penetrate whole buildings using distributed sensors on or around buildings," with UAVs assisting ground forces. A 2007 Army Research Lab study explores the ability of ground sensors, working with UAVs, to capture "images from different angles," thereby providing "intelligence on the configuration, content, and human presence inside enclosed areas (buildings)."
Nowhere To Hide - Killer drones that can see through walls

Oct 3, 2008

Phagocytosis and Chemotaxis


2. http://nz.youtube.com/watch?v=oYS90knzRl8
3. http://nz.youtube.com/watch?v=O21VnOgICa8
Phagocytosis is the cellular process of engulfing solid particles by the cell membrane... in the immune system it is a major mechanism used to remove pathogens and cell debris.

2. http://nz.youtube.com/watch?v=Ql7i_TLUurM
3. http://nz.youtube.com/watch?v=b0vkSFs5RvM
4. http://nz.youtube.com/watch?v=fzbtsJz2Ofc
Chemotaxis is the phenomenon in which bodily cells, bacteria, and other single-cell or multicellular organisms direct their movements according to certain chemicals in their environment.