Atlas of Electromagnetic Space by José Luis de Vicente and Irma Vilà

an impressive 3D navigable representation of the services that use our electromagnetic radiospectrum, ranging from 10Khz "radio navigation" to 100Ghz "inter-satellite communication".

the "services" view shows the range of applications (e.g. mobile, satellite, broadcasting) sorted by electromagnetic frequency, while the "projects" view documents different art works that have been based on specific spectrum zones (with accompanying descriptions & videos).

[link: &|thnkx Tom]