Me and Mine.

Yep.

Wed, 21 Mar 2012 00:08:05 -0400

Yep.

ezioblasetti: conformal maps by robert bunney

Sat, 11 Feb 2012 17:32:22 -0500

ezioblasetti:

conformal maps by robert bunney

San Diego

Fri, 10 Feb 2012 17:32:05 -0500

reeshtard:

Weekend of April 27th! Jordan has a conference that weekend and I have an interview for school. How convenient is that? ;)

reeshtard: martyseamusmcfly: Boof,why you are so lucky? Real...

Fri, 10 Feb 2012 14:06:21 -0500

reeshtard:

martyseamusmcfly:

Boof,why you are so lucky?

Real boof.

nprfreshair: TGISF: THANK GOODNESS IT’S SCIENCE FRIDAY!!!!!...

Fri, 10 Feb 2012 14:03:38 -0500

nprfreshair:

TGISF: THANK GOODNESS IT’S SCIENCE FRIDAY!!!!! [Related: Tina Fey on Fresh Air, Science Friday podcast]

reeshtard: This ...

Thu, 09 Feb 2012 13:53:41 -0500

This

To this

reeshtard:

This

To this

intothecontinuum: Making use of music theory, group theory, and...

Wed, 08 Feb 2012 22:08:45 -0500

intothecontinuum:

Making use of music theory, group theory, and category theory

From Musical Actions of Dihedral Groups

Abstract:
The sequence of pitches which form a musical melody can be transposed or inverted. Since the 1970s, music theorists have modeled musical transposition and inversion in terms of an action of the dihedral group of order 24. More recently music theorists have found an intriguing second way that the dihedral group of order 24 acts on the set of major and minor chords. We illustrate both geometrically and algebraically how these two actions are {\it dual}. Both actions and their duality have been used to analyze works of music as diverse as Hindemith and the Beatles.

Summary:
This paper connects the twelve musical tones to elements in the dihedral group of order 24 (the symmetries of a regular dodecagon). The translation from pitch classes to integers modulo 12 allows for the modeling of musical works using abstract algebra. The first action on major and minor chords described in the paper is based on the musical techniques of transposition and inversion. A transposition moves a sequence of pitches up or down and an inversion reflects a melody about a fixed axis. The other action arises from the P, L, and R operations of the 19th-century music theorist Hugo Riemann. It is through these operations that the dihedral group of order 24 acts on the set of major and minor triads. The paper also describes how the P, L, and R operations have beautiful geometric presentations in terms of graphs. In particular the authors describe a connection between the PLR-group and chord progressions in Beethoven’s 9th Symphony, which leads to a proof that the PLR-group is dihedral. Another musical example is Pachelbel’s Canon in D. In summary, the paper gives a very pretty explanation of what we commonly hear in tonal music in terms of elementary group theory.

treehugger: Identity Crisis (by nasmo3)

Wed, 08 Feb 2012 14:15:17 -0500

treehugger:

Identity Crisis (by nasmo3)

Future Dog.

Wed, 08 Feb 2012 13:13:32 -0500

Two criteria: 1.Big… 2.Respond to the name Theodore Charles Xavier Zurowski.

When I love him: Teddy.

When I hate him: Chuck or Chaz.

When he is in a wheelchair: Professor X.

reeshtard: photooverload: (via photooverload) Jordy?

Wed, 08 Feb 2012 12:59:33 -0500

reeshtard:

photooverload:

(via photooverload)

Jordy?

reeshtard: Explains EVERYTHING Yes!

Tue, 07 Feb 2012 22:01:09 -0500

reeshtard:

Explains EVERYTHING

Yes!

under-radar-mag: In 1902 French director Georges Méliès...

Tue, 07 Feb 2012 13:10:00 -0500

under-radar-mag:

In 1902 French director Georges Méliès released the short film Le Voyage Dans la Lune (aka A Trip to the Moon). It is considered to be the first sci-fi movie, in which, over the course of 14 minutes a group of scientists land on the moon and fight mushroom monsters, before returning home safely. Over a century later, the film has been given a complete visual restoration, and a new soundtrack thanks to iconic French duo Air. The project then served as inspiration for the band’s seventh full-length album. (via Air: Le Voyage Dans la Lune (Astralwerks) | Under The Radar)

Photo

Tue, 07 Feb 2012 12:17:51 -0500

A complete evening.

Tue, 07 Feb 2012 02:03:29 -0500

Skype Record: 5 hours 44 minutes. Some how never enough.

See?

Mon, 06 Feb 2012 22:07:50 -0500

See?

Exactly how I feel about children and pets. They deserve to be...

Mon, 06 Feb 2012 21:26:00 -0500

Exactly how I feel about children and pets. They deserve to be eaten, Alive.

Introductions.

Mon, 06 Feb 2012 17:08:28 -0500

Hello tumblr. My name is Jordan. Lovely to meet you…finally.