Sunday, June 27, 2010

Sasha and Dima

Tomorrow I fly back to China! This means I get to see my dogs for the first time in six months. I just about literally can't wait.

Here are some photos of them, including a few puppy photos.

Sasha's (the white-ish one) about five, now, and Dima is her half-brother, now about four years old. They're the sweetest dogs anyone could ever have :)


Saturday, June 26, 2010

Clouds

Undulus Asperatus

In 2009, a previously unclassified type of cloud became official, the first since 1951: Undulatus Asperatus. It looks really cool: 


The Cloud Appreciation Society has a whole bunch of pictures. The only explanation I've found so far is they're caused by "Turbulent motions between differing air masses."

Hole-Punch Clouds

From Wired: "As propeller or jet airplanes pass through the right atmospheric conditions, they make liquid water droplets freeze and immediately drop as snow, leaving a circular fissure behind... Normally, snowflakes or raindrops need a speck of dust or another imperfection to form around. But supercooled water can freeze instantly, if it cools quickly to around minus 35 degrees Fahrenheit."


Kelvin-Helmholz Waves

These are some of the coolest clouds I've ever seen. They're formed when two layers of air of different densities move past each other at different speeds, creating shearing at the boundary.Parts of the boundary move up and parts move down. Because one layer is moving faster than the other, the shear causes the tops of the waves to move horizontally.









Cloud physicist Patrick Chuang's got some words: "They are some seriously weird looking clouds."

He goes on to say, "In mammutus clouds, evaporation causes pockets of negative buoyancy as it cools the air inside the cloud. This makes the clouds puff downward instead of up like cumulus clouds, and they end up being like upside-down bubbles."






Night-Shining (Noctilucent) Clouds


These ones are by far my favourites. Noctilucent clouds are ice crystals about 45 nanometres thick (that's 4.5 x 10^-8 metres) . For comparison, the diameter of a DNA helix is  2nm, the height of a hark disk head over the disk, 3nm. 40nm is the wavelength of extreme ultraviolet waves. These ice crystals form at around -145C without needing dust particles, 80 kilometres up -- that's way up near the end of the friggin' Mesophere, higher than any other clouds around. You get the most during the Summer, when the Mesophere is coldest (see why) .

Here's a diagram to show at what time of day you can see them:


The article where I found most of these shows a few other cool clouds, too. It's worth checking out.

Friday, June 25, 2010

Coming to like Rachmaninov (slowly) ?

Last year's winner of the Stanford Concerto Competition had their concert during Spring quarter this most recent academic, as always. When I went to the concert last year, the pianist (Jack Yang, then a Junior, if you know him) played Beethoven's fifth piano concerto, a really pretty, monstrously large piece. 'in my favourite key, too: Eb major. Anyway, the soloist for this most recent concert, whose name I can't remember, played Rachmaninov's third piano concerto. Before this I'd never listened to any Rachmaninov before, but the first movement, at least, stuck in my mind.

I started listening to music when I was about seventeen. For three or so months, I listened to what my dad listened to -- R&B and rock from when he grew up. Co-incidentally, at this time, I became more serious about playing piano. My previous teacher, from when we were in Russian, had never taught me anything about technique or interpretation. Or sight-reading, for that matter: I sight-read really terribly. After my first five years of playing, I was under the impression that to play a piece well was to play it as ostentatiously as possible, at the greatest speed possible while paying no attention to dynamics.

When we arrived in South Africa, my new teacher worked hard to undo everything my previous teacher had taught me. Eventually, she gave me had some impact. At this point, my dad started to like classical music, given that I was playing better. I then followed him. We started out listening to Alicia de Laroccha's really pretty recordings of the Mozart piano sonatas and then branched out slowly. When I got to college, I thought Beethoven was way too late a composer for me to like, 'cause I only liked Mozart (who still remains my favourite composer) and Bach (second-favourite) and Haydn. Slowly, through influence from friends, I came to like later and later composers. I would have said I've reached my limit with Chopin. Until, that is, I heard Rach 3. It seems, now, quite conceivable that I could eventually come to like some of Rachmaninov's music, even though I'd always dismissed him as "hotel music" or "elevator music." Part of it may be that he reminds me of Russia; I'm finding myself occasionally listening to some Tchaikovsky, too.

Perhaps I can no longer divide my music tastes purely chronologically: Liszt , for example, lived almost completely before Rachmaninov, yet I'm about as convinced as I can be that I'll never come to love his music. I can't group it as dissonant vs. non-dissonant, either, though that was once the case. Mozart, even, uses dissonance in wonderfully interesting ways -- just look at the C major string quartet or his absolutely gorgeous c minor fantasia.

What is it that makes composers like Liszt, Prokofiev, Stravinsky, Britten, Adams and others so different, then? They're different from each other, too. As much as I'd like to say that their music, collectively, just sounds random, it clearly isn't.

If I had to guess, I'd say that by far the majority of my musical friends are Romantic-era - oriented, with just a few Modern-oriented (modern classical) and even fewer preferring Baroque- and Classical-era music.

Wednesday, June 23, 2010

Schumann's piano concerto

I was digging through music files the other day, and ran into Schumann's piano concerto, in a. It's a really pretty piece! I think I might try it this Summer. Here's what it sounds like, played by Svyatoslav Richter, one of my favourite pianists:

: I. Allegro Affetuoso (first link, second link)
: II. Intermezzo, which is attacca
: III. Allegro Vivace

The third movement is in 3/4, but if you listen carefully, sometimes it's interestingly ambiguous. And it's way fast, too, so no good for waltzing :(

Schumann tried two piano concerti before this, but neither worked out, apparently. This one was written for his wife, Clara Schumann, who was an amazing pianist. She even wrote some cadenzas for other concertos, including Mozart's 20^th. Supposedly Grieg used this one as a model for his concerto.

Tuesday, June 22, 2010

Handfish

This is cool: "Using its fins to walk, rather than swim, along the ocean floor in an undated picture, the pink handfish is one of nine newly named species described in a recent scientific review of the handfish family."


Strange-looking guy. Apparently he's only ten centimetres long, and only four Pink Handfish have ever been found, all off the coast of Tasmania. All in all, there are fourteen species of Handfish.




Monday, June 21, 2010

Google Silliness

Google searches on "recursion" and "anagram" result in interesting suggestions. Anyone know of any others?

Vuvuzela Concerto in Bb

This is pretty funny. If you've ever heard a vuvuzela, you'll understand why.

Sunday, June 20, 2010

Youtube video encoding quality

This is interesting: some guy uploaded a video of himself to youtube, then downloaded the same video from where he uploaded it, then uploaded that newly downloaded video again, and repeated the process. It's cool to see how the audio/video really deteriorates. Here's the video at 25 times, 100, 250, 500 and 1000. By 1000 (the last one) , it's completely unintelligible.

Popcorn Paws

If you've ever had a dog, you might have noticed that the bottoms of their paws smell like popcorn. It seems to lessen as they get older, too. Eventually, I got curious and Googled it. The folds on the paws have high moisture levels, creating a nice environment for bacteria and yeast, in particular, a bacterium called Pseudomonas, which is known for its "Frito"-y smell.

Apparently cats get this smell, too, but because they groom themselves, it's not as pungent.

Saturday, June 19, 2010

Serenity

'just finished watching Serenity (for the second time) . It's the movie that follows Firefly, a reallyreallyreally great TV series that got cancelled after the first 14 episodes. I watched it with my family, after showing all of them Firefly. Of course, everyone loved it. If you haven't seen it, I'd highly recommend you watch the TV show and then the movie sometime. Space cowboys speaking Chinglish -- what more could you want?

Friday, June 18, 2010

Gail Collins on the Oil Spill Politics

Gail Collins is my favourite columnist; she's just hilarious. Here's her take on the Republican Party's craziness about making BP pay for damages.

Sleep for Spring Quarter Sophomore Year

In the middle of Winter quarter this academic year I started recording my sleep. Here are two graphs and some data:
  • Average sleep time: 3:24.45
  • Average sleep length: 6 hours, 45.6144 minutes
  • Total sleep debt: 101 hours, 40 minutes
  • Time spent asleep: 554 hours, 20.4 minutes
  • % of time spent asleep: 28.1677%
(all-nighters are treated as sleeping at 24:00 for 0 minutes for calculation purposes)
The graphs are too large to fit nicely on a post, so here are the two URLs:


I'm hoping to keep a better schedule next quarter. Anyways, this quarter is way better than last quarter, when I pulled 7 or 8 all-nighters. Oh, well. That's what being a college student is like.

Thursday, June 17, 2010

Vuvuzelas


With the World Cup going on and all, there's naturally a lot of vuvuzela-blowing going on. Vuvuzelas, in case you don't know, are these long plastic horn-like instruments that produce a most wonderful loud sound. They're common at rugby and soccer games back in SA.

If you've ever played Legend of Zelda, another cool puzzle video game, you'll find this funny.

For those with CS interest, here's how you can selectively mute out the vuvuzela sound through equalizers (though I don't know why you would ever want to do that) .

Here's some information on how they work and why they're "annoying:" http://www.newscientist.com/article/dn19041-what-makes-the-sound-of-vuvuzelas-so-annoying.html?full=true&print=true

And last, but not least, Vuvuzela Hero! I would totally play this all day. This reminds me of a discussion with some friends earlier this academic year; we were hoping someone would someday make Orchestra Hero or Harpsichord Hero.

Biological Immortality

There's a species of jellyfish, the turritopsis nutricula, which can revert to its polyp (immature) state from a fully mature state; hence, it can indefinitely live. Barring being eaten or something, of course. They're 2mm long, too. 'pretty much the only creature that can, save for Hydra, Water Bears and colonies of bacteria (effectively).

Portal 2!

Portal 2 is coming out sometime in 2011. Portal was an awesome puzzle game; they recently made it free for Macs as a promotion for the sequel for a brief period.