{"product_id":"kopero-koperen-tensorring","title":"Kopero Copper Tensor Ring","description":"\u003cp\u003eThe tensor ring is a closed ring of solid copper, 4 centimetres across. You slide it just above the spout of your kitchen tap, where it stays put without anything to fasten. The water moves through the open centre; the ring does not touch it.\u003c\/p\u003e\u003cp\u003eIt does not have to go on the tap. \u003ca href=\"\/blogs\/knowledge-base\/how-to-use-a-tensor-ring\"\u003eUsing it loose\u003c\/a\u003e works just as well: beside a water bottle or a glass, next to a small personal object, on your desk or simply in your hand.\u003c\/p\u003e\u003cp\u003eThose 4 centimetres are the visible diameter of the closed ring. The measure this tradition is built on is a different one: the length of copper wire the maker measures out before bending it into a loop, the sacred cubit. Kopero uses a compact fraction of it, so the ratio holds and the ring still fits a tap. \u003ca href=\"\/blogs\/knowledge-base\/sacred-cubit-lost-cubit-and-new-cubit-explained\"\u003eSacred Cubit, Lost Cubit and New Cubit\u003c\/a\u003e explains those measures, and \u003ca href=\"\/blogs\/knowledge-base\/tensor-rings-who-was-slim-spurling-and-what-did-he-claim\"\u003ewho was Slim Spurling\u003c\/a\u003e tells you where the modern ring comes from.\u003c\/p\u003e\u003cp\u003eWhy copper and not some other metal? Copper is the yardstick the world measures electrical conductivity against: the international unit, IACS, is literally defined on a piece of annealed copper wire, and of all metals only silver conducts better. That this tradition bends copper wire in particular follows from that. How the conduction works physically is in \u003ca href=\"\/blogs\/knowledge-base\/why-copper-conducts\"\u003ewhy copper conducts\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eThat same conductivity is why an MRI room is lined with copper sheet and why the lightning protection standard specifies copper. Where the engineering turns into tradition is in \u003ca href=\"\/blogs\/knowledge-base\/copper-shielding-and-earthing\"\u003ecopper as a shield\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eHow to get the most out of your copper\u003c\/h3\u003e\u003cp\u003eA tensor ring works with shape, not with filtration. It removes nothing from the water and does not take the place of a filter, but it sits happily alongside one: purifying and structuring are two different things. Where the idea comes from that a closed copper form does something is set out in \u003ca href=\"\/blogs\/knowledge-base\/shape-power-how-form-focuses-energy\"\u003eShape Power\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eIf your spout is thicker than 4 centimetres, use the ring loose rather than prising it open. Copper is pliable, and opening it up changes the very measure the ring was made to.\u003c\/p\u003e\u003cp\u003eAbove the sink it gets water and steam every day, so you will see the discolouration there sooner than on a ring that sits on a desk. Polish it now and then with lemon and salt (not too hard: salt is mildly abrasive and dissolves well in the lemon juice) and dry it straight away. \u003ca href=\"\/blogs\/knowledge-base\/why-is-my-copper-turning-green-or-black-and-is-that-a-problem\"\u003eWhy is my copper turning green or black\u003c\/a\u003e explains what that colour means.\u003c\/p\u003e","brand":"Kopero","offers":[{"title":"Default Title","offer_id":54696164196693,"sku":"8720726791410","price":24.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1071\/7259\/4005\/files\/kopero-tensorring-1.jpg?v=1791102152","url":"https:\/\/kopero.com\/products\/kopero-copper-tensor-ring","provider":"Kopero","version":"1.0","type":"link"}