What is a year?

Posted by John Dalziel on Saturday, October 23, 2010 Under: Astronomy

How do you calculate that 1 year has passed on Earth?

Simple answer?

No it isn't. The problem - our planet does not return to its starting point once it was gone all the way around the sun! So how do you know when a year starts and when it ends?

This clip can also be watched at http://www.youtube.com/watch?v=IhqzW97_47w.

In : Astronomy

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About Me

John Dalziel

Liverpool

I'm an eLearning Adviser specializing in stimulating and supporting innovation in learning via eBooks, eMagazines, blogs (including audio versions), online TV, interactive resources, forums, workshops, conferences and face2face consultations. Evaluating and becoming familiar with sustainable and new technologies allows me to respond to the needs of learning providers from a position of experience rather than 'hearsay'. Supported learning providers, in the northwest of England (UK), can contact me for FREE consultations. Based at Lancaster University I work for the JISC Regional Support Centre - Northwest.