Which Way is the Propeller Spinning?

This is a video of a plane's propeller as it comes in to land, and it shows the propeller appearing to stop rotating and change directions multiple times. It's a great example of 'aliasing' in signal and video processing.
Related videos: (see www.iaincolling... )
• How to Understand Aliasing in Digital Sampling • How to Understand Alia...
• Aliasing Ambiguity Explained • Aliasing Ambiguity Exp...
• Understanding Aliasing in Digital Down Sampling • Understanding Aliasing...
• Sampling Discrete Time Signals: • Sampling Discrete Time...
• Decimation of Discrete Time Signals: • Decimation of Discrete...
• Interpolation of Discrete Time Signals: • Interpolation of Discr...
• Discrete Time Sampling Example: • Discrete Time Sampling...
• Typical Exam Question on Sampling • Typical Exam Question ...
For a full list of Videos and accompanying Summary Sheets, goto: www.iaincolling...
.