There are a wide variety of sirens at the disposal of police. However, there is now a new type of siren being added to their repertoire: Christened with a tantalizing name, the Rumbler, it sends out low, bone-rattling vibrations, so it is not only heard, but also felt. One has been tested on the streets [...]
Monthly Archives: June 2007
Floating Cities
There are two types of floating cities: cities that float in water (see ocean colonization) and cities that float in the sky (such as Cloud City). Both are still theoretical; the latter is really theoretical. Geoffrey Landis provides an interesting point though about building floating cities on Venus, whose surface is generally considered to be [...]
Posted in City, Science, Venus 3 Comments