If you believe all pocket calculators require batteries or at the very least transistors, then prepare to be amazed.  The Curta calculator is a mechanically elegant, physically compact, numerical computing marvel.  However given their relative rarity and price while you may not be able to get you hands on one physically, you can experiment to your hearts content virtually with the Curta Simulator.

     

With the LHC moving ever closer towards finally colliding particles, if like us you'd like to see what's going on at CERN try LHC Webcams.  We think you'll be surprised!

     

More retro home computing from our collective childhood. Manic Miner was without doubt one of the classic games for the ZX Spectrum. The joys of modern web browsers and Java allow you to relive your youth, for your lunch break at least.

     

It's a delightful tune that we haven't heard for years.  The satisfying squawking that signified a modem connection attempt.  Relive those days of 56K again with the 56K Modem Emulator.

     

While pruning excess bookmarks might be deemed good housekeeping and therefore a productive activity.  However if that task uncovers the massive, but nonetheless enjoyable, timesink that is Desktop Tower Defense productivity might drop drastically.