In addition to the list of more than 5000 free mathematics and physics videos and tutorials I shared last year, you may want to add the Vi Hart‘s Math Channel in Youtube. Vi Hart has created recreational math videos and mathematical doodles in fast-paced narration. The channel has more than 200,000 subscribers and has been viewed more than 16 million times as of this writing.

The math video above is the part 1 of 3 of the Fibonacci sequence and Spirals series.

Vi Hart calls herself a recreational mathemusician. She was born Victoria Hart, a music major who is passionate about mathematics. She is currently working at the Khan Academy but continues to maintain her own video blog.

Watch Fast-Paced Narrated Math Videos at Vi Hart http://t.co/8Ig5VpJv

After watching the video, the readers of this blog may like to match and count some equiangular (logarithmic) spirals in plants and animals by using these GeoGebra Applets:

Measuring Equiangular Spirals in Nature

The Equiangular Spiral in Plants. Fibonacci Numbers