The Science of Optics; The History of Art

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MurrayMoore
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Location: Los Alamos NM

The Science of Optics; The History of Art

Postby MurrayMoore » Thu Jan 16, 2003 9:59 am

"I have a chance to hear this seminar in person."




Professor Charles M. Falco
Optical Sciences Center
University of Arizona


The Science of Optics; The History of Art


Recently, renowned artist David Hockney observed that certain
drawings and paintings from as early as the Renaissance seemed
almost "photographic" in detail. Following an extensive visual
investigation of western art of the past 1000 years, he made the
revolutionary claim that artists, even of the prominence of van
Eyck and Bellini, must have used optical aids. However, art
historians insisted there was no supporting evidence for such a
remarkable assertion. In this talk, I will present a wealth of
optical evidence for Hockney's claim, evidence discovered during a
productive collaboration between an artist and a scientist. I will
also discuss the unique properties of the "mirror lens" and some
of this work's implications for the history of science and the
history of art. These discoveries convincingly demonstrate optical
instruments were in use-by artists, not scientists-nearly 200
years earlier than previously thought possible and account for the
remarkable transformation in the reality of portraits that
occurred early in the 15th century.

Acknowledgments: This work was done in collaboration with David
Hockney. We gratefully acknowledge David Graves (London), Ultan
Guilfoyle (Guggenheim), Martin Kemp (Oxford University), Masud
Mansuripur (University of Arizona), José Sasián (University of
Arizona), Richard Schmidt (Los Angeles), and Lawrence Weschler
(The New Yorker) for a variety of valuable contributions to our
efforts.
"...each with his sword at his side,
prepared for the terrors of the night." SOS38

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GaryGrzybek
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Location: Stillwater, New Jersey
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Re: The Science of Optics; The History of Art

Postby GaryGrzybek » Thu Jan 16, 2003 11:06 am

There was a program on cable all about this very subject. It may have been the same guy but I don't remember. Although I missed most of it I found it very facinating indeed.
Gary

G.F.S.
ARMA Northern N.J.
Albion Armorers Collectors Guild

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George Turner
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Location: Lexington KY

Re: The Science of Optics; The History of Art

Postby George Turner » Thu Jan 16, 2003 3:02 pm

Hi Murray,

Send me an update on what you find out. I grind telescope mirrors, and this sounds like a bizarre thing that someone might've stumbled across if they polish their armour or table-ware too much. Did someone notice the image they saw reflecting off their armour? Polished spheres are way too easy to make.

BTW: One of Galileo's methods of drawing a parabola was to roll a perfectly round steel ball (made a bit oily with the hands), up a slightly inclined mirror. It rolls up, comes back down, and leaves a slight smudge that traces a perfect parabola. You then highlight the smudge, and trace it onto some paper. This is too clever by half.

Best Regards,

George Turner

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MurrayMoore
Posts: 35
Joined: Wed Sep 25, 2002 5:56 pm
Location: Los Alamos NM

Re: The Science of Optics; The History of Art

Postby MurrayMoore » Fri Jan 17, 2003 9:15 am

If the method is the same as what I saw described a few months ago, they used a pinhole camera type projection device onto a flat canvas, then basically traced the image.

I will wait to see what this guy says, if I don't look it up on the net earlier.

However, this does NOT mean that med-renn artists did not understand and utilize the concepts of perspective and proportions in the artwork, which they clearly did. I'm not an artist, but I've done a lot of mechanical 3D drawings, and much of this knowledge was developed in the renn period.
"...each with his sword at his side,

prepared for the terrors of the night." SOS38

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MurrayMoore
Posts: 35
Joined: Wed Sep 25, 2002 5:56 pm
Location: Los Alamos NM

Re: The Science of Optics; The History of Art

Postby MurrayMoore » Fri Jan 17, 2003 10:06 am

"...each with his sword at his side,

prepared for the terrors of the night." SOS38


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