Latest Zenith Podcast Episodes

Perrin Time artwork

Perrin Time 001 - Volatile Alcoholism

Perrin Time - March 24, 2014 10:31 - 52 minutes
First in the series, Perrin Time aims to capture the unique personalities that bring the session to life. The party finds new and creative ways to kill themselves off in the face of imminent danger.





Mathematical models: from sundials to number engines - for iPad/Mac/PC artwork

The sundial as a mathematical model

Mathematical models: from sundials to number engines - for iPad/Mac/PC - March 26, 2010 05:02 - 1 minute - Video ★★★★★ - 1 rating
An ancient mathematical tool to measure the daily and annual cycles of the earth around the sun.

Mathematical models: from sundials to number engines - for iPod/iPhone artwork

The sundial as a mathematical model

Mathematical models: from sundials to number engines - for iPod/iPhone - March 26, 2010 05:02 - 1 minute - Video ★★★★ - 9 ratings
An ancient mathematical tool to measure the daily and annual cycles of the earth around the sun.

Mathematical models: from sundials to number engines - for iPad/Mac/PC artwork

Transcript -- The sundial as a mathematical model

Mathematical models: from sundials to number engines - for iPad/Mac/PC - March 26, 2010 05:02 - application/pdf ★★★★★ - 1 rating
Transcript -- An ancient mathematical tool to measure the daily and annual cycles of the earth around the sun.

Mathematical models: from sundials to number engines - for iPod/iPhone artwork

Transcript -- The sundial as a mathematical model

Mathematical models: from sundials to number engines - for iPod/iPhone - March 26, 2010 05:02 - application/pdf ★★★★ - 9 ratings
Transcript -- An ancient mathematical tool to measure the daily and annual cycles of the earth around the sun.

Mathematical models: from sundials to number engines - for iPad/Mac/PC artwork

Reading the sky with the astrolabe

Mathematical models: from sundials to number engines - for iPad/Mac/PC - March 26, 2010 05:01 - 2 minutes - Video ★★★★★ - 1 rating
How the Greeks invented a two dimensional astrolabe as a conceptual model of the cosmos, and how it was used.

Mathematical models: from sundials to number engines - for iPod/iPhone artwork

Reading the sky with the astrolabe

Mathematical models: from sundials to number engines - for iPod/iPhone - March 26, 2010 05:01 - 2 minutes - Video ★★★★ - 9 ratings
How the Greeks invented a two dimensional astrolabe as a conceptual model of the cosmos, and how it was used.

Mathematical models: from sundials to number engines - for iPod/iPhone artwork

Transcript -- Reading the sky with the astrolabe

Mathematical models: from sundials to number engines - for iPod/iPhone - March 26, 2010 05:01 - application/pdf ★★★★ - 9 ratings
Transcript -- How the Greeks invented a two dimensional astrolabe as a conceptual model of the cosmos, and how it was used.

Mathematical models: from sundials to number engines - for iPad/Mac/PC artwork

Transcript -- Reading the sky with the astrolabe

Mathematical models: from sundials to number engines - for iPad/Mac/PC - March 26, 2010 05:01 - application/pdf ★★★★★ - 1 rating
Transcript -- How the Greeks invented a two dimensional astrolabe as a conceptual model of the cosmos, and how it was used.

Mathematical models: from sundials to number engines - for iPod/iPhone artwork

Recording sales in clay tablets

Mathematical models: from sundials to number engines - for iPod/iPhone - March 26, 2010 05:00 - 2 minutes - Video ★★★★ - 9 ratings
Clay tokens, an ancient system used to record goods changing hands.

Mathematical models: from sundials to number engines - for iPad/Mac/PC artwork

Recording sales in clay tablets

Mathematical models: from sundials to number engines - for iPad/Mac/PC - March 26, 2010 05:00 - 2 minutes - Video ★★★★★ - 1 rating
Clay tokens, an ancient system used to record goods changing hands.

Mathematical models: from sundials to number engines - for iPod/iPhone artwork

Transcript -- Recording sales in clay tablets

Mathematical models: from sundials to number engines - for iPod/iPhone - March 26, 2010 05:00 - application/pdf ★★★★ - 9 ratings
Transcript -- Clay tokens, an ancient system used to record goods changing hands.

Mathematical models: from sundials to number engines - for iPad/Mac/PC artwork

Transcript -- Recording sales in clay tablets

Mathematical models: from sundials to number engines - for iPad/Mac/PC - March 26, 2010 05:00 - application/pdf ★★★★★ - 1 rating
Transcript -- Clay tokens, an ancient system used to record goods changing hands.

Mathematical models: from sundials to number engines - for iPad/Mac/PC artwork

Incas and their knots

Mathematical models: from sundials to number engines - for iPad/Mac/PC - March 26, 2010 04:59 - 1 minute - Video ★★★★★ - 1 rating
How South American Incas kept records by the use of knots.

Mathematical models: from sundials to number engines - for iPod/iPhone artwork

Incas and their knots

Mathematical models: from sundials to number engines - for iPod/iPhone - March 26, 2010 04:59 - 1 minute - Video ★★★★ - 9 ratings
How South American Incas kept records by the use of knots.

Mathematical models: from sundials to number engines - for iPad/Mac/PC artwork

Transcript -- Incas and their knots

Mathematical models: from sundials to number engines - for iPad/Mac/PC - March 26, 2010 04:59 - application/pdf ★★★★★ - 1 rating
Transcript -- How South American Incas kept records by the use of knots.

Mathematical models: from sundials to number engines - for iPod/iPhone artwork

Transcript -- Incas and their knots

Mathematical models: from sundials to number engines - for iPod/iPhone - March 26, 2010 04:59 - application/pdf ★★★★ - 9 ratings
Transcript -- How South American Incas kept records by the use of knots.

Mathematical models: from sundials to number engines - for iPod/iPhone artwork

Wooden tallies for buying beer

Mathematical models: from sundials to number engines - for iPod/iPhone - March 26, 2010 04:58 - 1 minute - Video ★★★★ - 9 ratings
How wholesale beer sales were recorded using notches on wooden tallies.

Mathematical models: from sundials to number engines - for iPad/Mac/PC artwork

Wooden tallies for buying beer

Mathematical models: from sundials to number engines - for iPad/Mac/PC - March 26, 2010 04:58 - 1 minute - Video ★★★★★ - 1 rating
How wholesale beer sales were recorded using notches on wooden tallies.

Mathematical models: from sundials to number engines - for iPad/Mac/PC artwork

Transcript -- Wooden tallies for buying beer

Mathematical models: from sundials to number engines - for iPad/Mac/PC - March 26, 2010 04:58 - application/pdf ★★★★★ - 1 rating
Transcript -- How wholesale beer sales were recorded using notches on wooden tallies.

Mathematical models: from sundials to number engines - for iPod/iPhone artwork

Transcript -- Wooden tallies for buying beer

Mathematical models: from sundials to number engines - for iPod/iPhone - March 26, 2010 04:58 - application/pdf ★★★★ - 9 ratings
Transcript -- How wholesale beer sales were recorded using notches on wooden tallies.

Mathematical models: from sundials to number engines - for iPad/Mac/PC artwork

John Napier's mathematical creations

Mathematical models: from sundials to number engines - for iPad/Mac/PC - March 26, 2010 04:57 - 3 minutes - Video ★★★★★ - 1 rating
John Napier's method of multiplication and logarithms, and how Charles Babbage corrected his calculations.

Mathematical models: from sundials to number engines - for iPod/iPhone artwork

John Napier's mathematical creations

Mathematical models: from sundials to number engines - for iPod/iPhone - March 26, 2010 04:57 - 3 minutes - Video ★★★★ - 9 ratings
John Napier's method of multiplication and logarithms, and how Charles Babbage corrected his calculations.

Mathematical models: from sundials to number engines - for iPod/iPhone artwork

Transcript -- John Napier's mathematical creations

Mathematical models: from sundials to number engines - for iPod/iPhone - March 26, 2010 04:57 - application/pdf ★★★★ - 9 ratings
Transcript -- John Napier's method of multiplication and logarithms, and how Charles Babbage corrected his calculations.

Mathematical models: from sundials to number engines - for iPad/Mac/PC artwork

Transcript -- John Napier's mathematical creations

Mathematical models: from sundials to number engines - for iPad/Mac/PC - March 26, 2010 04:57 - application/pdf ★★★★★ - 1 rating
Transcript -- John Napier's method of multiplication and logarithms, and how Charles Babbage corrected his calculations.

Mathematical models: from sundials to number engines - for iPod/iPhone artwork

Babbage's engine of precision

Mathematical models: from sundials to number engines - for iPod/iPhone - March 26, 2010 04:56 - 2 minutes - Video ★★★★ - 9 ratings
Charles Babbage's ingenious mechanical device to compute mathematical equations.