The RAC: Double, Double, Toil, and Trouble?

Double, Double Toil and Trouble —shakespeare, Macbeth, Act 4, Scene 1

decades and can be difficult to undo. For example, consider the overly long, often awkward, and sometimes contentious process by which 32-bit microprocessor systems evolved into 64/32-bitters needed to address larger storage and run mixtures of 32and 64bit user programs. Most major generalpurpose CPUs now have such versions, so bits have “doubled,” but “toil and trouble” are not over, especiall...

Double vision: double trouble.

To cite: Kesav P, Muthu V, Khurana D. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/bcr-2014207347 DESCRIPTION A 43-year-old smoker presented with painless binocular diplopia and numbness in the left frontotemporal region of 4 weeks duration. Physical examination revealed non-tender bony swelling in the left zygomaticotemporal region with posterior cervical lymphade...

Double reflux: double trouble

Are double translocations double trouble?

Double translocation heterozygotes are rare, but need not necessarily pose more of a counselling problem than single reciprocal translocation heterozygotes. Nine cases of double translocation are presented, together with a review of the few reports published to date. An attempt is made to provide simple counselling guidelines in the assessment of the risk of producing a liveborn abnormal child....

Double Bubbles Sans Toil and Trouble: iscrete Circulation-Preserving Vortex Sheets for Soap Films and Foams

Simulating the delightful dynamics of soap films, bubbles, and foams has traditionally required the use of a fully three-dimensional manyphase Navier-Stokes solver, even though their visual appearance is completely dominated by the thin liquid surface. We depart from earlier work on soap bubbles and foams by noting that their dynamics are naturally described by a Lagrangian vortex sheet model i...