{"product_id":"the-flat-spiral-n-tesla-1897","title":"The Flat Spiral — N. Tesla, 1897","description":"\u003cp\u003e\u003cstrong\u003eXVI — The Tower · Drop 1\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eTo reach the enormous voltages his wireless dreams demanded, Tesla needed a better coil. In this transformer patent he winds the coil as a flat spiral, a shape meant to reach very high voltages while keeping the windings safely insulated from each other. It's the heart of the machinery behind everything else in this collection.\u003c\/p\u003e\u003cp\u003eRestored from the original U.S. patent and printed in amber on black.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eU.S. Patent No. 593,138 · Granted 1897\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e→ \u003ca href=\"\/blogs\/archive\/tesla-flat-spiral-coil-transformer-patent-593138\"\u003eRead the full story in The Archive\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThe shirt\u003c\/strong\u003e\u003cbr\u003e• Bella + Canvas 3001, unisex fit\u003cbr\u003e• 100% combed and ring-spun cotton\u003cbr\u003e• Fabric weight: 4.2 oz.\/yd.² (142 g\/m²)\u003cbr\u003e• Pre-shrunk, side-seamed, shoulder-to-shoulder taping\u003cbr\u003e• Printed to order, just for you\u003c\/p\u003e\u003cp\u003eNote: the fabric is lightweight and slightly sheer under some lighting.\u003c\/p\u003e","brand":"SEEKER VII","offers":[{"title":"S","offer_id":67790775812395,"sku":"1651438_4016","price":36.0,"currency_code":"USD","in_stock":true},{"title":"M","offer_id":67790775845163,"sku":"1651438_4017","price":36.0,"currency_code":"USD","in_stock":true},{"title":"L","offer_id":67790775877931,"sku":"1651438_4018","price":36.0,"currency_code":"USD","in_stock":true},{"title":"XL","offer_id":67790775910699,"sku":"1651438_4019","price":36.0,"currency_code":"USD","in_stock":true},{"title":"2XL","offer_id":67790775943467,"sku":"1651438_4020","price":38.0,"currency_code":"USD","in_stock":true},{"title":"3XL","offer_id":67790775976235,"sku":"1651438_5295","price":40.0,"currency_code":"USD","in_stock":true},{"title":"4XL","offer_id":67790776009003,"sku":"1651438_5310","price":42.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1026\/8783\/4411\/files\/unisex-staple-t-shirt-black-front-6ad3716b9d293.jpg?v=1792242044","url":"https:\/\/seekervii.com\/products\/the-flat-spiral-n-tesla-1897","provider":"SEEKER VII","version":"1.0","type":"link"}