A Merry Tough Christmas Navigation Riddle
This time of year poses some logistical challenges for Santa and his team. Can you help him? Few people realise that in order to be…
Tag: tropic of capricorn
Natural Navigation in Brazil
A guest article by Pedro Jovchelevich Natural navigation in tropical biomes – My experience in the southeastern region of Brazil First of all I would…
Analemmas and the Equation of Time
If you stood on the same spot and took a photo of the sun every day during a year’s worth of good weather, at exactly…