Tropical Cyclone Debbie (March 2017)

March 25, 2017

Tornadoes and twisters Tornado and twister are different names for the same type of storm—a violently rotating column of air over land associated with a severe thunderstorm. Tornadoes range in diameter from metres to hundreds of metres and generally last from a few seconds up to half an hour. They have an intense updraught near […]

Our planet

March 24, 2017

Earth earth is soil.  Earth is a planet.  Capital letters matter. Earth spin – 24 hours – Day/Night cycle Earth spins in a counterclockwise direction.  For an outside observer the Earth spins left-to-right or west-to-east along its rotational axis. This is why for an observer on the surface the (stationary) sun and the night sky […]