PETRA HART

From dusk till dawn LED installation

2019

This sculpture object is a wall-based shape of white diffused acrylic with magenta fluorine colored acrylic on the back. The slowly looping gradient of color of 24 hours is animated by integrated computer-programmed LED lights. The shape of this luminous artwork varies from rectangle to square which symbolize the infinity of rays of light.

195x95x11 cm / 145x95x11 cm / 95x95x11 cm

 

From dusk till dawn LED installation simulates day and night and shows a 24 hours animated light between sunrise and sunset on the equator when the sun is perpendicular to the equator, but without the extra-spectral colors from dusk till dawn. In this case Volcano Wolf, Galápagos Islands in Ecuador September 23, 2019. At 12 am we see pure white light. Adding RGB rays together yields white. Regarding to the visible spectrum and the color temperature white light is equal to the green wavelength. I replace green into white, how human being experience light. The complementary color of white/green is black/magenta. Magenta is an extra-spectral color. It doesn’t correspond to a wavelength on our visible spectrum. We will not find this color on the rainbow. It’s like we are looking at a globe but we can’t see the back. As if it’s in another dimension. At 12 pm we are in the middle of ‘invisible’ magenta (the opposite of green) which is located exactly in the middle of the Pacific Ring of Fire. This ring forms a belt of oceanic trenches, island arcs, volcanic mountain ranges and plate movements that encircles the basin of the Pacific Ocean. The ring is home to 90% of the world’s earthquakes. Caroline Island in Kiribati is in the middle of the Ring of Fire. Caroline Atoll is best known for being the first place (since 1994) on Earth to receive sunlight each day during much of the year.

 

This work of art comes together with 2 QR codes. The blue QR code shows pictures of endemic animal species who lives all in harmony at The Galápagos Islands (galapagosconservation.org.uk). The magenta QR code shows (internet) pictures of destruction of nature in the Ring of Fire plus one endemic magenta colored crown Fruit dove. Apart from the natural disasters, did this pigeon survived because its enemies can see magenta, leaving the Fruit dove out of sight?

 

With my research of light, time and space I put on various issues. Time goes very slowly. What exactly happens from dusk till dawn? Does the sun rise and set at the same place every day? Or does it save a yoctosecond? A fraction of a second that we cannot comprehend?

 

On show BIG ART 2019, PK37, PAN Amsterdam 2019

#0100ff - #ff0001 LED installation

2019

This sculpture object is a wall-based shape of white diffused acrylic with magenta fluorine colored acrylic on the back. The slowly looping gradient of color of 24 hours is animated by integrated computer-programmed LED lights. The shape of this luminous artwork varies from rectangle to square which symbolize the infinity of rays of light.

195x95x11 cm / 145x95x11 cm / 95x95x11 cm

 

#0100ff - #ff0001 LED installation simulates extra-spectral colors like crimson, magenta, bright pink, and purple. These colors don’t correspond to a wavelength on the visible spectrum and are located between red and blue, between the hex color codes: #0100ff and #ff0001.

 

This work of art comes together with a QR code which shows (internet) pictures of destruction of nature in the Ring of Fire plus endemic magenta colored crown Fruit doves.

 

With my research of light, time and space I put on various issues. Is the universe an illusion? Are we looking at a sphere? Are there multiple dimensions?

 

On show BIG ART 2019, PAN Amsterdam 2019

Reality LED installation

2019

This sculpture object is a wall-based shape of white diffused acrylic with magenta fluorine colored acrylic on the back. The slowly looping gradient of color of 24 hours is animated by integrated computer-programmed LED lights. The shape of this luminous artwork varies from rectangle to square which symbolize the infinity of rays of light.

195x95x11 cm / 145x95x11 cm / 95x95x11 cm

 

Reality LED installation simulates the electromagnetic spectrum, time, light and space when the sun is exactly perpendicular to the equator, it shows day and night. Reality is the sum or aggregate of all that is real or existent, as opposed to that which is only imaginary. Reality is the totality of the universe, known and unknown.

 

This work of art comes together with a QR code which shows (internet) pictures about species that see differently than the human eye and how animals see the world. A great example is the 400-million-year-old visual system of the mantis shrimp. They are thought to have the most complex eyes in the animal kingdom and have the most complex visual system ever discovered. Compared to the 3 types of photoreceptor cells that humans possess in their eyes, the eyes of a mantis shrimp have between 12 and 16 types of photoreceptors cells. The mantis shrimp can see wavelengths from 300-720 nm, which begins in near-infrared, spans our entire visible spectrum, and tapers off in ultraviolet and well as two forms of polarized light.

 

With my research of light, time and space I put on various issues. Is reality the totality of the universe, known and unknown? What is real or imaginary?

 

On show OBJECT Rotterdam 2020

Circadian rhythms LED installation

2019

This sculpture object is a wall-based shape of white diffused acrylic with magenta fluorine colored acrylic on the back. The slowly looping gradient of color of 24 hours is animated by integrated computer-programmed LED lights. The shape of this luminous artwork varies from rectangle to square which symbolize the infinity of rays of light.

195x95x11 cm / 145x95x11 cm / 95x95x11 cm

 

Circadian rhythms LED installation mimics daylight between 2000 - 9000 kelvin. It’s about the biological rhythm whose cycle lasts one day.

 

This work comes together with a QR code which shows (internet) pictures of a variety of different rhythms caused to light. Timing is everything. People, plants and animals all have these rhythms. The rhythm for nocturnal animals is slightly shorter than 24 hours in an always dark environment, which means that it keeps shifting forward over time over successive days.

 

With my research of light, time and space I put on various issues. Are there different time paths? Does time have a direction? Do we shift towards UV and leave the red part? Are bees in a future timeframe since they can see UV and not red part? Can changing light incidence cause climate change? Is there more UV in the atmosphere than before? Is UV responsible for forms of chemical reactions that cause fires or destroys our corals?

Black body LED installation

2019

This sculpture object is a wall-based shape of white diffused acrylic with magenta fluorine colored acrylic on the back. The slowly looping gradient of color of 24 hours is animated by integrated computer-programmed LED lights. The shape of this luminous artwork varies from rectangle to square which symbolize the infinity of rays of light.

195x95x11 cm / 145x95x11 cm / 95x95x11 cm

 

Black body shows the color temperature of a light source for white light which is defined as the temperature of a hypothetical black body whose emitted light gives the same color impression as the light source and usually expressed in kelvin. For colors based on black-body theory, blue occurs at higher temperatures, whereas red occurs at lower temperatures. This is the opposite of the cultural associations attributed to colors, in which red is hot, and blue is cold, it is the color temperature of lamps which makes them visually warm, neutral or cool.

Eye of kingfisher

2018

Water-cut aluminium, powder coated midnight blue

210x150x0,3 cm + 1 cm distance from the wall

 

Eye of kingfisher is about the ever-changing light. While the sun (or the earth to the sun) revolves during day, drop shadow changes to different shades. In morning the shade is light gray and during the day it’s getting darker and darker. During civil twilight, when sun is up to 6 degrees below the horizon, the shade changes to a blue purplish hue. When the sun drops further to 12 degrees and the nautical twilight occurs, the drop shadow becomes dark gray. At astronomical twilight, when the geometric center of the sun is 18 degrees below the horizon, the shadow is almost black.

 

Remarkable about the kingfisher is that he prefers to live in shady areas, where he is not hindered by reflection of light when hunting. He has a predominantly blue color, with iridescent feathers on head and wings and his belly side is warm orange colored as if at certain times of the day in certain sunlight he can always look different for his prey.

 

On show OBJECT Rotterdam 2018, now part of Bas Kuiper Collection

Oak branch

2017

Water-cut metal, orange organic fluorine spray-painted on the back

350x200x0,3 cm + 1 cm distance from the wall

 

Oak branch is a dynamic work due to the change in light during the day. In addition to the various colors of drop shadow the orange organic fluorine reflects on the wall.

 

Commissioned

Kingfisher

2017

Water-cut metal, orange organic fluorine spray-painted on the back

170x160x0,3 cm + 1 cm distance from the wall

 

Kingfisher is a dynamic work due to the change in light during the day. In addition to the various colors of drop shadow the orange organic fluorine reflects on the wall.

 

On show BIG ART 2017