Surveying the current practical and theoretical factors for and against space elevators (including partial elevators—skyhooks!).
SETI—the Search for Extra Terrestrial Information processing:
What we get is a computational device surrounding the Asymptotic Giant Branch star that is roughly the size of our Solar System.
Ever wondered what would happen if you threw a ball inside an orbital habitat? Well, wonder no more!
The forbidden symmetry of Penrose tiles and quasicrystals.
A collection of photographs of the otherworldly sea forts that were built in the Thames Estuary during World War Two and later used by pirate radio stations.