— Info
The Torus, in more detail.
The shape
A torus is the form energy takes when it returns to itself — a closed loop with no
beginning and no end. Rendered flat, the winding reads as a lattice of arcs that spiral
inward and meet at a single dense centre. It is the same geometry that shows up in a
smoke ring, a magnetic field, and the field the heart throws off; drawn in two dimensions,
it becomes the rosette you see on the piece.
Conductive filament
This one is not printed in ordinary plastic. It is made with conductive
filament — the same reasoning behind the copper lattice in the hand-woven toroid:
a closed, conductive loop carried against the chest rather than an inert ornament.
If you want the long version of why that matters, the
science page walks through copper, toroidal
fields, and what 150 years of electromagnetism does and doesn't say.
The research
We don't ask you to take our word for it. Below is independent, peer-reviewed work — from
Science, Nature Materials, Chemical Reviews and others — on how the
shape and placement of conductive elements govern electromagnetic fields. They examine the
underlying physics, not this pendant.
Science · 2010
Toroidal Dipolar Response in a Metamaterial
An engineered array of loops arranged with toroidal symmetry produced a resonant response at
microwave frequencies that electric and magnetic multipoles cannot account for — the first
experimental evidence that a torus-shaped current arrangement carries an electromagnetic
signature of its own.
Read the paper →
Nature Materials · 2016
Electromagnetic toroidal excitations in matter and free space
The canonical review of toroidal electrodynamics: currents running on the surface of a torus
form an excitation distinct from the electric and magnetic dipole, contributing to how matter
absorbs light, disperses it, and rotates its polarisation.
Read the review →
Chemical Society Reviews · 2017
Electromagnetic theories of surface-enhanced Raman spectroscopy
Four decades of theory on why nanostructured conducting surfaces amplify optical signals so
dramatically: the structure concentrates the electromagnetic field itself. Designing the
surface is, in effect, deciding where the field gathers.
Read the review →
Chemical Reviews · 2011
Plasmons in Strongly Coupled Metallic Nanostructures
When conductive elements sit close together, the gaps and junctions between them —
not the elements alone — set the resonance and produce intensely concentrated field
"hot spots." Placement is its own variable.
Read the review →
IEEE Trans. Microwave Theory & Techniques · 1999
Magnetism from conductors and enhanced nonlinear phenomena
The founding paper of modern metamaterials: rings cut from ordinary non-magnetic conductor
develop an effective magnetic response whose resonant frequency is set purely by geometry —
radius, gap width, spacing, lattice.
Read the paper →
SIAM Review · 2015
Mathematics of the Faraday Cage
A rigorous account of the most familiar shaped-conductor effect of all, showing that shielding
depends on how the wires are arranged — linearly on their spacing, only logarithmically on
their radius. Arrangement decides what the field does.
Read the paper →
Wearing it
Matte black, light on the neck, and hung from a simple black cord. The printed texture is
deliberate — raked light catches the grain of each pass, so the surface reads as woven
rather than moulded. Keep it dry, wipe it with a soft dry cloth, and take it off before
water; the same habits in the care guide apply here.
Ordering
Set the quantity on the card and the price follows: the second piece is 10% off, and every
piece after that another 5% off. Pay with Cash App or PayPal — the buttons carry the exact
total — and put your full name in the payment note so the order can be matched to you.
Pieces ship in 5–10 days from the workshop. Want something sized differently, or in a run?
Ask the maker →
Aethertek makes no medical claims. The pendant is a wearable object, not a treatment.