photo from NYT Weekender
photo of works by Dale Chihuly
photo of the inside of the human eye hanging on the wall of the Havener Eye Institute at OSU
photo taken of the Milky Way by the Hubble telescope
These four photographs came into my awareness during the past month and they are the inspiration behind this blogpost. Please examine them carefully.
"If I were called upon to define briefly the word Art, I should call it the reproduction of what the senses perceive in nature, seen through the veil of the soul." Paul Cezanne
“Nature is not only all that is visible to the eye… it also includes the inner pictures of the soul.” Edvard Munch
“You don’t make a photograph just with a camera. You bring to the act of photography all the pictures you have seen, the books you have read, the music you have heard, the people you have loved.” Ansel Adams
“Beauty is in the eye of the beholder.”
Optics is a branch of physics that deals with the determination of behavior and the properties of light, along with its interactions with the matter and also with the instruments that are used to detect it.
ROYGBIV or Roy G. Biv is an acronym for the sequence of colors commonly described as making up a rainbow: red, orange, yellow, green, blue, indigo and violet. A rainbow spans a continuous spectrum of colors; the specific bands are an artifact of human color vision.
In 2003, I took a class at OSU entitled “Holography I”. It was a fascinating cross-listed course between Art and Physics that allowed the students to understand and create several types of holograms. My creations were poor at best, but I was exposed to the world of wavelengths. I learned that visible light from the sun is actually composed of the colors of the rainbow that can become distinguishable when sunlight passes through a prism. I learned that light travels through waves with properties of wavelength and frequency. Wavelength is the distance between identical locations on adjacent waves.
Frequency is the number of complete wavelengths that pass a given point each second. All light travels at the same speed, but each color has a different wavelength and frequency. It is the different wavelengths that cause the different colors of light to separate and become visible when passing through a prism.
Like all the different types of light, the spectrum of visible light is absorbed and emitted in the form of tiny packets of energy called photons. These photons have both the properties of a wave as well as a particle.
The typical human eye is only capable of perceiving wavelengths between 390 and 750 nanometers. A nanometer is a billionth of a meter.
All the different parts of our eyes work together to help us see. First, light passes through the cornea (the clear front layer of the eye). The cornea is shaped like a dome and bends light to help the eye focus. Some of this light enters the eye through an opening called the pupil (PYOO-pul). The iris (the colored part of the eye) controls how much light the pupil lets in. Next, light passes through the lens (a clear inner part of the eye). The lens works together with the cornea to focus light correctly on the retina. When light hits the retina (a light-sensitive layer of tissue at the back of the eye), special cells called photoreceptors turn the light into electrical signals. These electrical signals travel from the retina through the optic nerve to the brain. Then the brain turns the signals into the images we see.
Art is created by a human artist (photographer) who is influenced by the world around her or him. An image of that world freely expresses her/his inner thoughts, feelings, passions, ideas, and vision. The camera is just a tool that allows the photographer to share from her/his “soul” to the eyes of the beholders.
CPW
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