Monthly Archives: March 2010

Melbourne: a disaster-movie trailer

This week Melbourne, Australia had an intense, sudden storm, with huge hailstones (up to 10cm diameter observed) and enough rain to flood the downtown core. Although rare, this is not a unique event for Melbourne. The cold southern oceans have … Continue reading

Posted in Disasters, Science | Tagged , , , , , , , , , | Leave a comment

The Length of a Day

Spin in an office chair with your arms & legs sticking out, then pull your limbs in tight to spin faster. If you watched Vancouver’s Spring Olympics, you saw figure skaters slow down a spin by extending a leg, then … Continue reading

Posted in Astronomy, Planetary Science, Science | Tagged , , , , , , | Leave a comment