cat

First LolCatSynth "contest"

Remember this photo from a few days ago?

Well, this photo has inspired several lolcat captions, including on this original post:

“im in ur ether, changing ur capacitanz”

There are several more suggestions on this repost at matrix.

So am calling the first LolCatSynth contest, to write even more lolcat captions for this photo. Please leave your suggestions in the comment section.

There isn't really any “prize” or “winner” for this particular contest, though I will be happy to do the actual captioning for my favorite submissions, as well as post them (with credit) to the popular lolcat sites.

Theremin Cats

From Brian Sacawa: Sounds Like Now:

The context for this picture is Sacawa's lament that early theremin virtuosi concentrated on trying to get the instrument to play traditional western tonal music, rather than exploring the radically new ways of organizing pitch and structure afforded by the instrument. This is indeed something that concerns me about many of the efforts going on to “de-experimentalize” computer music and simply turn it into another tool for traditional classical or popular forms. The great promise of electronic instruments is to allow people to break with the traditions of acoustic music. But Sacawa concludes:

Maybe if more cats–unlike humans, who are so grounded in western tonal music–played the theremin we might witness the instrument's full potential.

And thus we have theremin-playing cats.

Check out this feline thereminist from YouTube:




Weekend Cat Blogging #107: Peek-a-boo and Stray Cats

WCB 107 is being hosted this weekend at ScamperDude.com, where Scampy is playing both Rock Star and Super Hero.

Luna has some antics of her own, ratcheting things up in our regular hide-and-seek games:

I noticed that that Luna's eyes appear yellow instead of green in this an many other photos taken in the more earth-tone bedroom. Regular fans of Luna know that she has unusually green eyes for a black short-hair cat.

Her antics and affections have been quite welcome of late, it seems like a bit of a melancholy week despite the beginning of summer, and the brightness and warmth in abundance.

On a recent series of morning walks I saw several cats, most of whom were probably strays, like this rather thin character with a striking coat and photogenic appearance:

He/she was one of several cats taking up residence in the large vacant trying separating a large residential neighborhood (my neighborhood, actually), from a Safeway parking lot and strip mall. I hope they get enough to eat.

A few weeks ago, I stopped at the semi-annual rummage sale for one of the main local groups that helps stray cats in our community, Project Purr.

Picked up a few books while I was there, some summer reading. I was mildly tempted by a full set of “Left Behind” paperbacks, but thought better of it.

Also check out Friday Ark #144 (Saturday is the new Friday), and of course Carnival of the Cats.

CatSynth pic: lissajous (chaos link)

Via matrixsynth:

Originally from gerald:

My cat loves the Lissajous this thing generates

So what is a “Lissajous”? it is actually short for Lissajous curves or Lissajous figures, a class of 2D (and 3D) curves describing complex harmonic functions, or more simply multi-dimensional sine curves. The following equations describe a general Lissajous curve on an x-y coordinate plane:

x = A sin(at + φ)
y = B sin(bt)

Most of the time, one leaves out the A and B, which case all the curves fall on a convenient unit square.

The most commonly described Lissajous curves set the phase term φ to π/2, i.e., a standard cosine function, and have a and b at integer ratios, like 1:2, 6:5, etc. You can think of these as natural harmonics, like in musical sounds. You can see a few of the graphs below, first for a=1 and b=2:

Here are 3:2 (a:b), and 9:8, respectively:

As you can see, the higher the ratio, the more complex and dense the figure. If you add all the figures up together, you should be able to fill the entire unit square.

There are all sorts of interesting special cases. For example, if you set a and b equal, you will get a circle. If you additionally set the φ to zero, you will get a straight line. Finally, you can mess with different values of φ, like 0.3 in the first drawing below, or set a and b to non-integer values, to get all sorts of interesting variations:

It is interesting to think about these sorts of functions by relating them both visually and aurally (i.e., synthesizing the corresponding waveforms), but we will leave that as an exercise for interested readers, perhaps returning to the topic in a future article.






Trying a little experiment. Trackposted to Gone Hollywood, Conservative Cat, The Crazy Rants of Samantha Burns, and The Pet Haven Blog, thanks to Linkfest Haven Deluxe. The links here and in the trackbacks do not necessarily reflect the opinions of this site or its contributors.

Charles Mingus Cat Toilet Training Program

Speaking of Mingus and cats, I might as well post this surprising article from the legendary Jazz bassist himself. Here is the Charles Mingus Cat Toilet Training Program. It ends with the following:

It took me about three or four weeks to toilet train my cat, Nightlife. Most of the time is spent moving the box very gradually to the bathroom. Do it very slowly and don't confuse him. And, remember, once the box is on the toilet, leave it a week or even two. The main thing to remember is not to rush or confuse him.

Good luck. Charles Mingus

Yes, I wasn't sure this was for real, either, but it does appear on an official site that includes information about the Mingus Bands as well as the life and activities of his wife Sue Mingus following his death in 1979.

As one other bookmark on del.icio.us states, “I respect Mingus even more now.”