Nature Stoned

Susy Oliveira at the Museum of Contemporary Canadian Art (MOCCA), Toronto 2011:

Varken

Goto80 from his 2017 album Floptrik:

From Goto80's Soundcloud channel

The Reconstruction

Nicole Collins from her solo exhibition The Reconstruction at General Hardware Contemporary, Toronto 2011:

Pieces of Heaven

Steve Driscoll from his solo exhibition Heaven Is Where You Find It at Angell Gallery, Toronto 2011:

Memory of a forest

Kim Dorland at Angell Gallery, Toronto 2011:

Mohr algorithm

Manfred Mohr's algorithmic works at THEMUSEUM, Kitchener 2011:

Agam circles

Ron Agam at (the now closed) Bertrand Delacroix Gallery, New York 2011:

Andresen vs Rothschild

Charles Andresen at Guided By Invoices, New York 2011:

Eva Rothschild at 303 Gallery, New York 2011:

Probability for two randomly chosen positive integers to have no common factors

We have previously looked at the evaluation of the Riemann zeta function at 2:

This result can be used to calculate the probability for two randomly chosen positive integers to have no common factors.  It is easy to see that the probability for two randomly chosen positive integers to be both multiples of a prime p is 1/p².  So the probability that they do not share a common factor of p is 1 − 1/p².  Therefore the probability that they do not have ANY common factors is:

Very neat result!

A sequence of prime numbers (from the powers of π)

It's π-day today.  I am going to construct a sequence of prime numbers by applying the floor function to positive integer (n) powers of π,

⌊π ⁿ⌋.

Here are the first few:

The next one ⌊π ³¹⁷⌋ is a 158-digit number.

The Angel's Share + Glitch

Ottawa-based piano/percussions duo SHHH!! Ensemble performing Canadian composer John Gordon Armstrong's The Angel's Share:

Video from SHHH!! Ensemble's youtube channel

A glitched drawing:

Castellani vs Marclay

Enrico Castellani from his solo exhibition at (the now closed) Haunch of Venison, New York 2011:

Christian Marclay at Paula Cooper Gallery, New York 2011:

Schulz sv Benson

Tilo Schulz at C24 Gallery, New York 2011:

Trudy Benson at (the now closed) Mike Weiss Gallery, New York 2011:

re:paint

Andreas Kocks from his solo exhibition re:paint at Winston Wachter Fine Art, New York 2011:

Junction/Cycle

Richard Serra' from his solo exhibition Junction/Cycle at Gagosian Gallery, New York 2011:

Serenity Now

From the group exhibition Serenity Now at (the now closed) Milavec Hakimi Gallery, New York 2011 ...

Matthias Pliessnig:

Lisa Lebofsky:

Fudge vs Martin

Carl Fudge at Galerie Richard, New York 2011:

Ferran Martin's Granada at (the now closed) Newman Popiashvili Gallery, New York 2011: