more lectures at Disasasters Supercourse
A tsunami can compete with a jet airplane, traveling across the ocean in less than a day.
A violently rotating column of air (vortex), hanging from a cumulonimbus cloud, with circulation that touches the surface of the earth
Key contributors to the emergence of human influenza pandemics
More than half the city's houses were destroyed
The disease has never before been reported in the Western Hemisphere ...
This lecture originated from the recent news events of planes crashing into buildings.