PhysicsUnbreakable: The MIT time-lock puzzle A giant of internet cryptography has devised a code that he says will take 35 years to solve – with a mystery prize sealed in lead. MacGregor Campbell reports Features
TechnologyHow to cloak a crime in a beam of light The 14th member of Danny Ocean's team of thieves might just be a physicist, making use of an "event cloak" 51¶¯Âþ