Newcall Gallery

Thursday, July 31, 2008

24-06-08 | Two or more systems, Annie & Ashton Bradley on Eyedrops from Upstairs

Two or more systems for Eyedrops from the Second Floor

“For the spider, nearly blind, the web is a vibrating extension of its senses.1”

On the night before the opening I attempt to talk to my brother , who is a quantum physicist about the various systems operating on different scales in Eyedrops from the Second Floor, but due to a storm our phone line is not reliable, people cannot call in and now we cannot call out, thanks TELSTRA, so I rely on free minutes on cell phones from all of my flatmates to call him in Dunedin.

Ashton Bradley: Oh a lightning storm? I’m just about going to bed, I got up early to watch the cup final and eat pancakes. Hmmm maybe tomorrow when the lines not crackling, oh the show is tomorrow? What did you want to ask me?

Annie Bradley: Can you hear that chhkk, chhkk on the line? Oh well, I’ll make it up, you know give you a Steven Hawking voice.

Ashton Bradley: Ok I’ll get into bed with Ina, she can pipe up too.

Annie Bradley: One thing I was thinking of was how when we were kids and we put those mice in the fish tank, in the jar with the click clack lunch box tube for air and sealed it with blue tack, looking out at the fish, under water what a great time we thought they were having !

Ashton Bradley: Oh I forgot about that

Annie Bradley: I think maybe that’s what the work is more about, a system or pseudo science about having a new experience.

Annie describes the work Jamie and Kentaro made without having seeing it, Ashton has heard about it already but would like to see it…

Ashton Bradley: Well the dust work…have you heard of Brownian motion? Robert Brown looked at pollen grains in water with a microscope. He observed that the pollen grains moved around quite rapidly. There was some speculation at the time that they could even be alive, as they seemed to move on their own accord, but the motion also seemed very random. Einstein wrote a famous paper on it in 1905. The motion of the dust was due to individual water molecules hitting the grains from all sides.

Ina says I’m letting cold air into the bed…

Ashton Bradley: With the fish… how random is the actual signal coming off the fish motion? Has he done a Fourier transform of the signal to look for the periodic components?

Annie Bradley: I’m not sure, I can find out how random it is. Jamie says the fish stay still and then sometimes they go into a frenzy and circle the tank a lot.

Ashton Bradley: Maybe they patrol the tank so we might expect some kind of periodic motion determined by the size of the tank, so I think you might find some strong frequency components if you looked at the spectrum, heheehehe, I think you’d find some periodic behaviour in the time it takes to cross the tank, heheehe. I’d like to run some numbers.

Annie Bradley: You’d like to do a simulation?

Ashton Bradley: yes, some numerical modelling, see what the data set was like. You would take the periodic component and take away the random component and listen to the music of that part only, like a tank symphony.

[Dr Ashton Bradley, Research Fellow, Jack Dodd Center for Quantum Technologies, Department of Physics, University of Otago, Dunedin.]