seems we all agree the guy in the video was a lousy shot
there's one more thing though - i imagine it's hard switching from 5.56 mm to 7.62 mm caliber weapon and still be as effective because of the totaly different balistic trajectory of the rounds. at this distance with an AK you'd have to aim quite low because the amplitude of the balistic trajectory is higher - the 7.62 bullet is heavier, bigger and goes in an arch, while the 5.56 slug from a M16 goes more in a straight line. that was also one of the reasons AK outperformed M16 in a jungle environment such as in vietnam - the lighter 5.56 bullet is more likely to be deflected from its intended path by dense vegetation while leaves and even small branches won't make the AK slug deviate so much as it has more kinetic energy

Didn't really like the piece itself, but I know how hard quartets are, so voting up.

Once I went to a fancy concerto by Kim Dong Kyu when I was in Korea and pretended to like some wanna-be quartets.

Off sync, different amplitude etc etc. They were so caught up playing the piece fast and furious that they forgot to coordinate with each other. And yet, the audience cheered, because they didn't really give a shit about the music. They were just so happy pretending to be high class, enjoying this lovely western art etc etc.

Terrible, terrible night for me. My cousin thought I was complaining too much that night. I say I was justified. UGH!

I dunno if they are the loudest ever, but I've seen them many times and they are VERY FRIGGIN LOUD! Moreso than just sheer amplitude, they are very "noisy." You have to have a good ear to hear all the melodies amongst all the various sounds they're putting out. I saw them play in Austin once with 5(!) lead guitars!

The second yawn clips off too dramatically to be unedited. Also the carrier frequency and the fast modulation do not even slightly change in pitch or tempo (respectively); only amplitude is ramped up and down to mime the cat's mouth. Maybe I'm just a perfectionist... and a nerd.

... either BS or,... its a ROBOT CAT!

The first one I've measured is my wife's favorite singer, Happy Rhodes. I'm using a program called "Transcribe" from a company called Seventh String Software. It's usually intended for people trying to transcribe guitar solos. It displays a waveform envelope; the X axis is frequency, and the Y axis is amplitude; and a piano keyboard right underneath it. So if someone plays or sings middle C, there will be a big peak in the graph right above that key. If you check the Talk page on Happy's Wikipedia entry, you'll see a discussion involving myself (k8fan), my wife (xenussister) and Ben Wing.

http://en.wikipedia.org/wiki/Talk:Happy_Rhodes

I wish there was an open source program to accomplish this, but I've not found one.

"So is that damaging to your ears? Or do only high pitched sounds do significant damage?"

Damage to your (inner) ear occurs when enough energy is transferred to your hair cells, causing them to break.

A loud low sound like in this video has a low frequency (pitch) and a high amplitude (volume). As sound is just a displacement of air, at low enough frequencies with high amplitude it would basically just be a gust of wind (as you can clearly see).
The energy in a wave depends on its frequency and amplitude, imagine the hairs just swaying about 1 time per second..no big deal.
  15000 times per second however, all the while swaying just as far, the stress would cause them to break.
High-energetic waves have the potential to do more damage, just think of visible light ("low" frequency) and x-rays (high frequency). Even ultraviolet light, which is just beyond the visible light in frequency, can cause skin cancer.

A low sound that blows your hair about won't damage your inner ear.
Lower sounds could theoretically kill the hairs but your eardrum would sooner rupture..ouch?
The basic rule probably should be, if it hurts turn down your volume down to about 30% of that volume : S long term higher frequency exposure is a bitch.

I can't explain it . . . but they can:


<Protrude, Flow> uses magnetic fluid, sound, and moving images. Affected by the sounds and spectators' voices in the exhibition place, the three-dimensional patterns of magnetic fluid transform in various ways, and simultaneously its flowing movement and dynamic transformations are projected on the wide screen.

The magnetic fluid appears as a black fluid. It is made by dissolving ferro magnetic micro-powder in a solvent such as water or oil, and it remains strongly magnetic even in the fluid condition. Therefore, it is more flexibly transformable than iron sand and so it is possible to create more complicated three-dimensional organic patterns. That appear occasionally as pointed mountains or pliable organic shapes, sometimes as flowing particle streams.

The transformation of magnetic fluid is caused by the interaction with environmental sound. The sounds in the exhibition place (sounds created by artists, and voices of spectators) are caught by a microphone hanging from the ceiling, and then a computer converts the sound amplitude to electromagnetic voltage which determines the strength of the magnetic field. At the same time, the magnetic fluid changes its three-dimensional patterns sequentially. Each pattern appears synchronized to the environmental sound and the points of the shapes move correspondingly. As a result, magnetic fluid pulsates according to the sound. A digital video camera captures images of the moving magnetic fluid, and projects it on the screen.

I can't explain it . . . but they can:


<Protrude, Flow> uses magnetic fluid, sound, and moving images. Affected by the sounds and spectators' voices in the exhibition place, the three-dimensional patterns of magnetic fluid transform in various ways, and simultaneously its flowing movement and dynamic transformations are projected on the wide screen.

The magnetic fluid appears as a black fluid. It is made by dissolving ferro magnetic micro-powder in a solvent such as water or oil, and it remains strongly magnetic even in the fluid condition. Therefore, it is more flexibly transformable than iron sand and so it is possible to create more complicated three-dimensional organic patterns. That appear occasionally as pointed mountains or pliable organic shapes, sometimes as flowing particle streams.

The transformation of magnetic fluid is caused by the interaction with environmental sound. The sounds in the exhibition place (sounds created by artists, and voices of spectators) are caught by a microphone hanging from the ceiling, and then a computer converts the sound amplitude to electromagnetic voltage which determines the strength of the magnetic field. At the same time, the magnetic fluid changes its three-dimensional patterns sequentially. Each pattern appears synchronized to the environmental sound and the points of the shapes move correspondingly. As a result, magnetic fluid pulsates according to the sound. A digital video camera captures images of the moving magnetic fluid, and projects it on the screen.