LHCsound is a project that transforms collision data collected from the ATLAS detector at the LHC, into audio files like this one.
Collisions data is associated with spatial position and direction, changing in time and multi-dimensional. Trying to classify this data is difficult, because there is so much going on in the data. Physicists often use artifical neural networks (computers programmed to behave a bit like very simple brains), and complex ‘black-box’ computer programmes, because there is no other way to deal with large amounts of multi-dimensional information.
Sound seems the perfect tool with which to represent the complexity of the data, because with our hearing sense we’re able to distinguish many properties of sounds, (source, location, frequencies, timbres, picth and tempo) making it easier to understand the data. And this could allow scientists to make full use of the neural networks between them.
The sound featured here corresponds to a Higgs jet composition: A jet made up of lots of cells containing energy deposits is sonified in terms of their energy, distance from interaction point and angular distance from jet axis, as illustrated in this image. Each cell can be heard as a separate note in this example.
Visist www.lhcsound.com for more info about the project and more Higgs jet sounds.
Correct me if I'm wrong, but AFAIK:
velocity is the rate at which distance increases
acceleration is the rate at which velocity increases
jerk is the rate at which acceleration increases,
but what's after that?
This question is so inappropriate to the usual FYPhys D:
Correct. After jerk is jounce, also called snap. It’s the rate at which jerk changes. It’s the fourth order derivation of the position vector, where velocity is the first. The fifth and sixth have been called, somewhat jokingly, “crackle” and “pop” but the terms aren’t widely used.
When working on the Hubble Telescope, NASA engineers actually specified limits on the jounce.