Joel David's interests

Joel David's posts

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**Into the Wave**

A stunning creation from

**Frédéric Vayssouze-Faure**

► Gif source>> https://ello.co/wavegrower/post/2qbstzrrfdlhq7nhu7qbrw

I found this interesting and eclectic guy by serendipity. ☺

**Frédéric Vayssouze-Faure**- Mathematics teacher, Master of Engineering holder, Collège Gambetta, Cahors, France- says:

*"Mathematics, music, computer science : these are the roots of the digital pieces of work I create.*

*My interest for musical theory and its physical and mathematical founding principles (Pythagoras, d'Alembert, Fourier) have led my work on animations composed of simple motions, generally periodic, especially sinusoidal.*

*Object-oriented programming has given me a great freedom to explore my ideas about forms and motions.*

*Each piece of work can be seen as a mathematical object developed in multiple dimensions: cloning, position, scale, colour... and, above all, time."*

► Read more>> http://gallery.bridgesmathart.org/exhibitions/2013-bridges-conference/vayss

#gif, #art, #motion, #design, #minimal, #blackandwhite, #wave, #generative #processing, #creativity, #digitalwork

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Our contribution to the Infinite Bridge (https://youtu.be/1_DOzuaBE84).

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5/14/17

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Two models of set theory with the same reals and the same cardinals, but which disagree on the continuum hypothesis.

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Whole wheat sourdough. 100% whole wheat, sourdough starter, water, salt, sugar. Medium hydration. I put a little cornmeal on the dough balls in the proofing baskets; it rose overnight in the refrigerator. Delicious for breakfast hot out of the oven!

5/7/17

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There is a Turing machine program that accepts exactly any desired finite set, when it is run in the right universe. This is related to my post last year on the universal algorithm, and this algorithm is also universal, but for all partial functions on the natural numbers, even though PA proves that the program computes at most a finite function.

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Barbara's piece on what she calls the f-word: Flow.

This is her article for Aeon, on the topic of expertise. Her book, Thought in Action, is available from Oxford University Press https://global.oup.com/academic/product/thought-in-action-9780199596775?cc=us&lang=en&.

This is her article for Aeon, on the topic of expertise. Her book, Thought in Action, is available from Oxford University Press https://global.oup.com/academic/product/thought-in-action-9780199596775?cc=us&lang=en&.

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A cardinal κ can be worldly in the full set-theoretic universe, but not worldly in some transitive inner model.

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Modern-day wood-working Babbage in Canada!

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Spring blossoms all over campus! That is the math building in the background, out on the College of Staten Island CUNY campus. We are lucky to have vast lawns and meadows on that campus, despite being an urban university. It feels like a respite in the country.

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