The Cassiopeia Project is an effort to make high definition science videos available to anyone who wants them. As they say, if you can visualise it then understanding is not far behind.
Above is the Cassiopeia Projects movie talking through the concept of a nychthemeron or a day on earth.
The movies are well worth checking out if your an geography/science educator, we are off to take a look at the series on complexity…
See the Cassiopeoa Project for full details and downloads.