I have some comments around this discussion.
First of all, as it happens sometimes in Yasmin, now we have the discussion
divided by three names: Light is my business, Fireworks and electricity and
Yasmin discussion on LIGHT. May be is not a problem, and the discussion
would evolve by its own selecting the best name that contains it. But, i
would like to point it for the possible new discussants.
Second. Stephen, your question make me to be a kind of shameful !!, as
quick as i said "light is my business", you make a question that for sure
is not easy to answer for me. Glupsss. However, i would try. Light contains
so much kind of information. As i said in the previous post, light can be
analized as a electromagnetic wave. Sound is wave as well, and we use it to
drive information and comunicate. We can use another kinds of
comunications, for example birds or horses, by communication through waves
is fast (sound around 300 m/s and light around 300,000,000 m/s). Nowadays
electronics, radio, wi-fi, bluetooth, NFC, RFID, IRDA, ..., are
technologies that use this electromagnetic wave communication. To perform
this communication the wave must be modulated, as we know (radio is the
best example, FM, AM, ...). One important concept there is the carrier wave
and the modulated signal. If we have higher frecuency carrier waves, it is
possible to get higuer boradbands, an so on, much richer information. So,
in these sense, radio waves are less richer than microwaves. An for sure,
visible light could transport more information. One interesting TED talk
speaks about this, with the proposal of Li-Fi (The analogous of Wi-Fi but
with visible light):
https://www.ted.com/talks/harald_haas_wireless_data_from_every_light_bulb
This is not the end, for sure. Light carries lot of information: energy,
polarization, intensity, coherence, photon statistics, patterns of
vibration (modes) and many more. There are new ways to carry information
through light, as for example Twisted Light, which is a kind of information
through the transvers paterns of the light vibration:
http://www.bbc.com/news/science-environment-29953239
I attach this video, about communicating with light, from Polina Bayvel,
who is Professor of Optical Communications and Networks, and Head of the
Optical Networks Group at University College London.
https://www.youtube.com/watch?v=qezHUwou9dY&feature=youtu.be
At the same time, there is another very interesting way to send information
with light, which comes from quantum nature of light: entangled photons. In
these systems two photons are related to each other, in a way that when we
define some property in one of them (for example polarization) the second
define this property instanteneously. It is independente of how far are
both photons between them. One could be at Earth and the other at the Moon,
or even farther. This kind of pairs are called EPR pairs, at its seems they
violate special relativity and opened new kind of experiments starting from
Bells inequalities. Nowadays this kind of entangled photon pairs are used
to send secure information, or to make quantum teletransportation of photon
states. All of this new ways of send and manipulate information are by
light and its properties.
Finally, i' m very interested in which way the artistic community works
with light in its quantized version: photon. Nowadays, photonics is a word
that cover lot of new technologies, and single photons are used in more
accesible way (for example attenuated lasers) and single photon detectors
are not very difficult to opperate (as for example Silicon APDs). So, what
can expect from the artistic community when they manipulate light by
photons?
Guillermo.
Fireworks and electricity
2015-03-30 16:28 GMT+02:00 roger malina <rmalina@alum.mit.edu>:
> Yasminers
>
> I just got a post from Pierre Alain Hubert, one of the worlds foremost
> fireworks artists.
>
> He has created among other things the worlds smallest fireworks
> that we jokingly call 'nano fireworks' although they are not nano
>
> https://www.youtube.com/watch?v=a66zRsDOp7I
>
>
>
>
> dear colleagues
>
> about 2015 the year of light who is intersted by discussing about
> Fireworks as an art form
> I m a world known fireworks 'specialist
> so light is my business
> artist, scientist, specialist of large displays all over the world ,
> and working too on millimetric sources of sparks
> friend of roger Malina throught IMERA
> I will be very glad to participate at this year of light program in a team
> feel free to look at my web site and to contact me
> looking forward for your response
> all the best
> pierre alain hubert france
>
> amitiés P.A.H
> pyrohub@yahoo.fr
> www.pyrohubert.com
>
>
> Here are more details on his 'nano fireworks
>
>
> http://www.nanowiki.info/#%5B%5BSmall%20is%20Beautiful%3A%20NANO-FIREWORKS%3F%5D%5D
>
> Small is Beautiful: NANO-FIREWORKS?
> Roger Malina, 31 March 2010 (created 31 March 2010)
> Pierre-Alain Hubert is one of the worlds foremost fireworks artists
> known internationally:http://www.pyrohubert.com/
>
> I first met him when we were planning projects for the International
> Year of Physics in France and he had a proposal to create fireworks
> whose display structures were similar to those of showers of particles
> created in particle accelerators like those being created at the LHC
> at CERN as we speak. He was fascinated about the question of the scale
> of phenomena and in particular if you could tell the scale of a
> phenomenon from a photograph. What structures are particular to
> particular scales of phenomena? This is a question that has a large
> literature, with seminal works such as Darcy Wentworth Thomson's "On
> Growth and Form" with recent discussions triggered by Mandelbrot's
> work on fractals.
>
> Pierre-Alain Hubert recently met nano scientist Jim Gimzewski during a
> residency at IMERA and the question came up of whether one could make
> nano-fireworks, or at what scale does explosif release become
> impossible. Hubert went to work and has now created a series of the
> smallest fireworks ever created. You can hear him describe them and
> see the displays at: http://www.youtube.com/watch?v=a66zRsDOp7I
>
> These are perhaps not yet nano but certainly micro. In the u-tube
> video he again discusses the question of structure and scale. He is
> also intrigued by the coincidence that the structure of the displays
> of his nano fireworks reminds him of what he imagines to be the firing
> of neurons. Hubert and Gimzewski plan to continue their collaboration
> and I would be interested in other art-science work that investigates
> the question of scale and structure.
>
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