Vi Hart Climbs Infinite Trees

The latest from the remarkable Vi Hart (and you'll be pleased to know it involves a notebook, not a microwave oven ;-):

Möbius Music

For the musically-inclined, the genius of Bach and Vi Hart in a single post!... ;-)

A hat tip to Steven Strogatz for leading me to this wonderful animation illustrating Bach's oft-cited Crab Canon played as a möbius strip:


[taken from here: http://strangepaths.com/canon-1-a-2/2009/01/18/en/ ]

This in turn reminded me of one of Vi Hart's early renditions with a manual music box playing a möbius strip:


[from here: http://www.youtube.com/watch?v=3iMI_uOM_fY ]

Friday Fun

Wow!, it's not April 1st yet, so I can only assume that someone spiked Vi Hart's coffee for her latest video escapade ;-):

http://tinyurl.com/7s4ggmf

And for a Friday puzzle, a simple, straightforward riddle (requires more thinking through than mathematics):

Sally notes that the day before yesterday she was 22 years-old, yet next year she will be 25. What day does her birthday fall on, and when did she voice the above statement?
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Answer: Her birthday is on Dec. 31, and her statement was made on New Year's Day, Jan. 1.

Vi and Sal Together

Vi Hart and Sal Khan (Khan Academy) discussing human perception of logarithmic scales:

Hyperbolic Space et.al. and Vi Hart

Interesting interview, from New Scientist, with the creative Vi Hart here:

http://www.newscientist.com/blogs/culturelab/2011/03/mathematical-artist-why-hyperbolic-space-is-awesome.html

Tau Jam

Gotta luv effervescent Vi Hart (...though I suspect she drinks too much coffee)!  "Equalis Community Blog" brought my attention to another delicious (so to speak) video I'd missed from Vi, this time in honor of last week's Pi Day, but celebrating Tau instead --- if you don't know about Tau (the equivalent of 2π) you can check it out here:

http://tauday.com/

But I'd go ahead and view Vi's effort first:

Teaching Math In America

Via Robert Krulwich:

http://tinyurl.com/2d7ottj

Making math joyous instead of "soul-crushing