Archives for posts with tag: Julie F. Hill

Lode – a way or path, a watercourse, a vein of metallic ore.

A lodestone is a naturally occurring magnet possibly created by a lightning strike. Early compasses were made of lodestone suspended on a cord.

Magnetite is a common mineral that has an attraction to a magnet but is not magnetic in itself.

The image shows magnetite, sold on eBay as a Lodestone though at £2 what did I expect.

Fluid activity hidden deep in the Earth’s interior can be visualised through plotting the magnetic field and its fluctuations.

The geomagnetic field, generated by the Earth’s molten core, varies through time; the magnetic poles migrate, go on excursions or reverse polarity. During these periods of flux the strength of the magnetic field changes and this phenomenon is recorded in archaeological artifacts, volcanic rocks, and sediments. The mineral deposits of stalactites store a paleomagnetic history of declination (the deviation of magnetic from geographic north).

Thinking about how magnetic pole reversals are stored in geology. I am modelling some paper clay rocks for future filming visualising the magnetic field using iron filings.

Early navigators using the compass around the 15th century became aware that geomagnetic north would roam position. In 1701 the first map charting the magnetic field declination was produced by British astronomer Edmund Halley.

In the 19th century the study of geomagnetism became one of many passions for explorer polymath Alexander von Humboldt who studied

“what keeps the innermost of the world together, how all is woven together”

and was the first to connect climate with interactions between atmosphere, oceans, land and plant ecology. From meticulous observations he noticed the Earth’s magnetic field intensity increases from the equator to the pole, and that it was also influenced by auroras and solar activity causing magnetic storms.

Magnetic observatories to monitor the Earth’s magnetic field were set up around the globe including one at Greenwich which had to relocate twice due to infrastructure interference (electric railways) and is now based in Devon with a permanent azimuth mark on a concrete obelisk viewed from the north window of the Absolute Hut. I wonder if it is possible to visit.

Magnetotactic bacteria align themselves with the Earth’s magnetic field to navigate using nanoparticles of magnetite crystals covered in biological material called magnetosomes. Each nanoparticle is about 100,000 times smaller than a grain of rice. They are mostly found in water and sediment with little or no oxygen. It has been found that magnetosomes can be biodegraded (dissolved) in human stem cells losing magnetism at first but then reforming into human cells with magnetic sensitive qualities.

There is a daily variation in the magnetosphere caused by sunlight hitting the ionosphere, a layer of the atmosphere about 1000km up. The electrical conductivity of this layer is affected by the solar wind which pressures and squashes the field on the sunlit side while creating a magnetotail pluming from the dark side of the Earth.

Capturing garden activity through the solar cycle with a spycam.

The rotation of the Earth around its axis results in a molecular clock evolved by organisms in alignment with the solar cycle. The Earth’s magnetic field can influence animals’ circadian clocks, through the photoreceptor cryptochrome, which is activated by blue light.

I have recently acquired a drone and have been for a couple of practice flights in Richmond Park’s designated area taking along a few pentagon mirrors. Excited by the possibilities.

Up at 5am to see the tiny points of light that are Venus and Jupiter approaching their conjunction which they performed the following morning hidden by clouds

Research trip to RSPB Snettisham in North Norfolk to see the Whirling Wader Spectacle. The high spring tides push the birds from their feeding grounds on the mudflats of The Wash onto the lagoons of the reserve. The spectacle occurs when the tide is super high during daylight hours in early spring or late autumn when the birds are migrating to and from this site. It is surprising how fast the tide comes in. On arrival in the early evening the sea is a distant strip of light.

Suddenly the gullies are filling and the first murmurations of knots are forming low over the incoming water. The speed of the birds is extraordinary. I was totally ill equipped to capture the spectacle on video.

Fascinating research discussed in the webinar Scientific American live: Bird Migration and Song featuring Professor of Chemistry University of Oxford, Peter Hore, an expert on magnetoreception.

Radicals are molecules that contain an odd number of electrons and are therefore unstable. For most molecules the electrons are paired which cancels out the magnetic force. Birds use three different compasses to navigate across the globe; the sun, the stars and the magnetic field. The Artic tern makes the longest migratory journey, a staggering 25,000 miles.

The theory that birds may use the Earth’s magnetic field to navigate began in the middle of the 19th century, but experiments in Germany with European Robins in the 1960s were the first to prove the connection. The Earth’s magnetic field is extremely weak so the mechanism that can detect this weak force must be very sensitive. Because free radicals are very unstable it doesn’t take much energy to have big effects. The particular cryptochrome molecule used is found in the retina of the eye with the photoreceptor cells. Blue light shined onto Cryptochrome 4 produces radical pairs which are sensitive to the magnetic field. It is excited by blue light but does not respond to red light. The molecules work like a pendant compass, distinguishing the direction of the magnetic field towards pole or equator. This feature arises from the spin direction of the free radical pairs. Both radicals may spin in the same direction or one may spin one way and the other the opposite. There is a lot of processing in the eye before a signal is sent to the brain to act upon.

It is possible birds form a visual perception of the magnetic field. The cone cells in the eye are used by day but may be taken over at night for navigation as this is when birds migrate. Light pollution and electromagnetic noise pollution such as AM radio masts can cause disorientation.

I still have questions about how the birds know where to head for. They may have a map but they still need a destination.

Stunning North Norfolk coastline. It’s so flat here that cliffs are unexpected. Hunstanton Beach was once under a tropical sea 108 million years ago when sea levels were 200m higher. Somewhere in these strata evidence of magnetic pole reversals will be stored.

So much to explore at the National Physical Laboratory Open Day but my favourite room was Magnetic Materials and Sensors. They don’t allow any photography so I can’t share some of the amazing experiments I saw but I have been able to recreate my favourite as it was also the simplest; a magnet dropped into a copper pipe creates an electric current as it falls which gently slows its progress through the tube. So cool. I will be filming this.

Experiments with lenses. It’s often the way that having spent time on a proposal that doesn’t get accepted those ideas do not get wasted but ultimately feed into new work.

Testing ‘The Forms’ as a floor piece.

The immutable truths Plato discovered in geometry belong to the realm of abstract thought and ideals he called The Forms. Twelve pentagons form a dodecahedron which Plato defined as ‘a fifth construction, which the god used for embroidering the constellations on the whole heaven.’ Today it is dark matter that science believes holds the stars in the heavens. In visualisations of dark matter created from cosmological data we see familiar organic patterns emerge; the fronds of dark matter spanning between galaxies could be the spreading branches of trees or the veins under our skin.

Thanks to KIPAC Stanford University for the data visualisations.

Enjoyed a one day 3D Geometry class with Leila Dear at the Princes School of Traditional Arts. I gained so much from the RCA exchange week here that fed into my work for the past several years that I thought a refresher would be useful – and that was before I knew we would be making geometric bubbles. Irresistible.

Out of Studio

Reflections at Workplace Gallery

Sculpture by women artists Nicola Ellis, Hsi-Nong Huang, Patricia Ayres and Olivia Bax.

All works offer up a satisfying conjunction of materiality and form but especially loving Nicola’s ‘Quite a Structure’ which is like a slice of the Earth’s molten core.

HEAVEN NEITHER BURNING FARTHER at The Crypt, St. John on Bethnal Green

Erika Blumenfeld writes “The material comprising our bodies shares cosmic origins with the material comprising the planets, asteroids and comets in our solar system. Scientifically, this material, having derived from distant stars across time, threads back to the primordial material that emerged moments after our universe burst into being. Culturally, our star gazing has filled us with wonder across all civilizations, sparking art and architecture, philosophy and science, mythology, folklore as well as navigation and place-making”.

Visual journeys have been created using the archive, modern science, performative poetry, scanned glacier-ice sent by image transmission, laser-based mapping originally sourced from the Rosetta space mission, the use of historic adaptations, the layering of earthly minerals, and a hunt for asteroid fragments. Held in a crypt under-ground the exhibition takes a poignant look at the myth and science that surround comets, which in theory brought life to Earth but could also end it.

Artists: Julie F Hill, Leah Beeferman, Barry Stone, Pedro Torres, Fryd Frydendahl, Ports Bishop, Claudio Pogo & Magdalena Wysocka Curated by Lucy Helton

Fascinating and beautiful work in this subterranean gateway to the cosmos which rewards following up each artist’s research.

POST TOTEM at OHSH Projects pop up on Oxford Street, curated by Adam Dix and Dale Adcock.
I found the concept of this exhibition very appealing. Reaching back to what connects us. Some innate sense of the sacred.

‘Imagine an artist holding the metaphorical hand of an artist from the previous generation and that artist, doing the same, and so on, back through time, back 30 to 40 thousand years into the unimaginably distant past, when we made the great cave paintings of Lascaux and Maros-Pangkep karst. This imaginative exercise creates an image of an unbroken woven human connection, stretching back through time uniting, individuals into a group, linked by imagination, action and materials.’

Artists showing: Dale Adcock, Simon Burton, Adam Dix, Tim Ellis, Lisa Ivory, Simon Burton, Rachel Howard, Henry Hussey, Dean Melbourne, Yelena Popova, Chantal Powell, Joanna Rajkowska, Alexis Soul Gray, Suzanne Treister.

Seth Price – Art Is Not Human at Sadie Coles

An interesting entanglement of hand and digital process. Raw paintings are photographed and imported to a 3D digital space of geometric shapes, tubes and directional lighting. The effects are then exported and printed onto the original painting.

Melanie Manchot Alpine Diskomiks at Parafin.

Questioning the mediation of the mountain experience. A mountain skyline created from album covers and soundscape from the combined mix of recorded content. Imagine a steady build of music to accompany the climb to a dramatic mountain peak and the overwhelming crescendo as you reach that majestic summit of the sublime. Downstairs choreographed snowploughs score grooves in looping folkdance sequence.

This painting by Luchita Hurtado at Hauser and Wirth made me think of the practical demonstration by Brian Cox showing that in a vacuum a feather and a rock (bowling ball) would fall at the same speed.

 “The reason the bowling ball and the feather fall together is because they’re not falling. They are standing still. There is no force acting on them at all.”

“(Einstein) reasoned that if you couldn’t see the background, there would be no way of knowing that the ball and the feathers were accelerating toward the Earth.”

Larry Bell at Hauser and Wirth

‘Although we tend to think of glass as a window, it is a solid liquid that has at once three distinctive qualities: it reflects light, it absorbs light, and it transmits light all at the same time.’ Larry Bell

Everything is Made of Light at Bermondsey Project Space. The artists refer to Jacques Rancière, in his essay, Are Some Things Unrepresentable?, who scrutinizes the challenges faced by images in depicting the world around us.

Mark Kasumovic tackles the problem of trying to represent the invisible through a juxtaposition of images of spaces of discovery and text listing scientific non sequiturs. Mary O’Neill presents us with a world of fragments from which personal narratives must be assembled. Isabella Streffen’s work explores perception and the spaces between digital and emotional communication. Matthew Pell stretches time through capturing light in otherwise transient momentary events.

I felt very in tune with intent of the work here. Particularly Mark Kasumovic’s texts that felt like a snapshot of a research artist’s notebook. All those tantalising lines of enquiry. I liked the premise from Mary O’Neill of the introduction of creatures from the mundanity of an overlooked life, that when situated in a new context, conceive paradise.

Marcus Cope Silver Linings at Peer

Fabulous potent paintings of those vivid memories that are seared into the synapses from times of heightened emotions.

Beautiful and terrible.

Alice Bucknell Swamp City at Hoxton 253 Project Space

Like a dollop of dream topping on a large turd the work offers up a speculative future of luxury ecotourism as investment opportunity in the face of a climate crisis that feels almost inevitable.

Charlotte Johannesson Circuit at Hollybush Gardens.

“Nature speaks in symbols and signs.”

Evolution from weave to code and back again. Beautiful works full of metaphor and shared history.

Reading – Braiding Sweetgrass Robin Wall Kimmerer; reciprocity – don’t take more than you need and always give something back.

Mercurius Patrick Harpur; no easy route to the conjunction of soul, spirit and matter.

Work in progress experimenting with ideas for some new video pieces that will develop from my collaboration with the high altitude balloon student society at Imperial College London and participation in the Continuum residency at Allenheads Contemporary Arts.

We will be attempting to launch a cloud chamber into space and film the outcome. 1803 filming cloud chamber (1)

 

It will be interesting to see how much cosmic ray activity we can record at high altitude. This is where protons emitted from the sun or distant galaxies crash into the Earth’s atmosphere and break apart.

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There may be other methods of recording we can try such as stacked layers of very thin plastic sheet which are ionised as the particle passes through and can later be etched to show the resulting track.

On Earth we are also protected from cosmic rays (which are high energy radiation) by the Earth’s magnetic field which is caused by the spinning molten iron core setting up convection currents in a geodynamo process.

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I am exploring magnetism and its powers. To be drawn to some powerful source. To fall into a black hole. I am trying ideas of a portal that offers transformation. This is also about returning to Allenheads, being drawn back. A black hole transforms matter, a wormhole deals with exotic matter.

 

Theoretically, to pass through a wormhole you need negative energy.

‘Negative energy is a concept used in physics to explain the nature of certain fields, including the gravitational field and various quantum field effects. In more speculative theories, negative energy is involved in wormholes which may allow for time travel and warp drives for faster-than-light space travel.’

So a portal that transports or transforms you (matter) could channel any ‘negative energy’ present and this could be dissipated by using black tourmaline which is supposed to clear negative energy. This could be the fuel to ignite the process.

I have a obtained a small two way mirror to test for the portal interface so the viewer can witness their own transformation.

1901 two way mirror

This could involve the vital fluids of Animal Magnetism or suggestion therapy of Mesmerism/ Hypnotism.

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Magnetoreception is the detection of a magnetic field by an organism. We have a protein (a crytochrome) in the human eye which could serve this function of navigation.

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How can we be equipped for physical or subconscious navigation/transformation?

I will be looking at tracking the electromagnetic field, sending messages and reading codes for new work to be made responding to this years incredible communications double anniversary, for Lizard Lighthouse (400 years) and Goonhilly Earth Station (50 years: transmission of the first lunar landings). I am excited to have been offered a place on the Lizard Point Residency run in partnership with Mayes Creative, Lumen London and the National Trust.  We will be visiting wireless and semaphore stations along the Lizard coastal path, considering the Scilly Isles 30 miles out to sea and the important prehistoric menhirs offering ‘beacons’ for travel & procession across the land.

I have a lovely frosted glass Fresnel lens (as used in lighthouses) to experiment with.

1901 fresnel lens

 

With the prospect of using more technology in my work I spent an intense weekend with Aphra Shemza and Jamie Howard at Ugly Duck learning a quick guide to interactive light art. Had a chance to program an Arduino, solder it to a PCB and connect up individually programmable LED’s to respond to sound with variable colour and brightness. Also first time soldering which was very satisfying.

Not sure how I will cope when I start my own project but at least I know what an Arduino looks like now and some of its possibilities. Also it’s good to know Aphra and Jamie do offer support consultation.

I followed this up joining a Flux event hosted by Maria Almena, Oliver Gingrich and Aphra Shemza at The Library where a diverse mix of artists, musicians and various tech geeks from the creative media arts community come together monthly to network and share crits.  Was fun and welcoming.

Out of the Studio..

The Alicja Kwade installation in Space Shifters at Hayward Gallery was clever

and of course I liked Helen Pashgian’s resin spheres

I do like shiny things and reflective surfaces but this show was overload and works became just that – light entertainment.

Pierre Huyghe Uumwelt at The Serpentine Gallery was not so light and felt a bit like being stranded under medication in some apocalyptic lost outpost trying to make sense of incoherent images morphing into something almost but not quite recognisable.

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The walls were sanded to reveal layers like the dissections of the brain that was scanned to produce the data used to try and build an image from the electrical impulses.

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The dust filled the air, purposefully bred flies swarmed in vain to escape leaving little corpses on the floor.

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Francis Upritchard Wetwang Slack at the Barbican Curve. Gorgeous glazes and uncanny mystics.

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Left unsure if this was archaeology or evolution.

Attended the talks accompanying In the Dark curated by Genetic Moo, a London Group event at The Cello Factory.

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Talks by Nick Lambert and Sean Clark from the Computer Arts Society who are celebrating their 50th year anniversary this year, and Jack Addis from the Lumen Prize. Artists discussed their practices and Tim Pickup and Nicola Schauerman from Genetic Moo talked about the challenges of working in the dark when overspill of light from other peoples work reduces the impact of all works.

Tim was wishing for a bulb that emits darkness. I remember Cham telling us about the photomultiplier tubes in the dark matter detector at Boulby Underground Laboratory which he said were in effect reverse lightbulbs, in that they absorb photons rather than emit them.

Made use of a free ticket to London Art Fair, Brockett Gallery had managed to shake of the fair vibe in their installation and I was glad to discover the 1974 film Space Is The Place in the Art Projects Screening Room.

1901 art fair john coney 1974

Presumed lost in space Sun Ra returns to do battle, outwit the white NASA scientists and transport the black race to a new planet in outer space.

Also good to see Thom Bridge’s intriguing self portrait of himself and his twin Theo One Ear Both Eyes which was a requirement of their visa application photograph. Shown so you can’t see both portraits at the same time unlike below. Which is Thom?

Thoughtful and prescient video based work looking at natural selection/personal choice from David Blandy and Larry Achiampong in Genetic Automata at Arts Catalyst. What colour skin would you choose? How far back do we reach for our identity? What can I claim as my own? Net migration google map was fascinating to watch.

Where are those phrenology bumps developing on our contemporary skulls?

1901 larry achiampong and david blandy 3

Falling Stars/Stelle Cadenti exhibition at The Crypt Gallery was a display of work created in response to last years Lumen Atina Residency where the group experiences local astronomical sights and dark skies.

Of Stars & Chasms at ArtHouse1 showing stellar work from Julie F. Hill bringing the astronomical sublime to a bodily encounter.

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