5x5

brightest london is best reached by underground: glorious, vintage gallery of Tube posters

einstein-bose condensate: new, preliminary research suggests quantum-entanglement can be harnessed

not your typical disney princess: Leia Organa is a force to be reckoned with

she doesn’t even realise she’s a replicant: Liartown, USA variations on the Voight-Kampff test for humanity, more sophisticated than CAPTCHA

frogmorton: JRR Tolkien’s annotated map of Middle-Earth