{"product_id":"fieldex-electric-field-energy-density-pixel-sticker","title":"Fieldex – Electric Field Energy Density Physics Sticker","description":"\u003cp\u003eMeet Fieldex, a spark who knows the space between charged plates is not really empty. An electric field stores energy density ½ε₀E², so doubling the field stores four times the energy. At air's 3 × 10⁶ V\/m sparking limit that is about 40 J per cubic metre. Pixel-art kiss-cut sticker in 2, 3, 4 and 6 inches; equation, symbols and sources in the physics panel below.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"2\" × 2\" \/ White","offer_id":50658588557415,"sku":"17635572657470809292","price":4.99,"currency_code":"USD","in_stock":true},{"title":"3\" × 3\" \/ White","offer_id":50658588590183,"sku":"16584086753667518994","price":6.99,"currency_code":"USD","in_stock":true},{"title":"4\" × 4\" \/ White","offer_id":50658588622951,"sku":"52805161661598394210","price":8.99,"currency_code":"USD","in_stock":true},{"title":"6\" × 6\" \/ White","offer_id":50658588655719,"sku":"28838067627166750901","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/01_clean_ba9a8d8a-3a62-450e-8bad-55dc42b18c3a.jpg?v=1792803571","url":"https:\/\/pixelatedphysics.com\/products\/fieldex-electric-field-energy-density-pixel-sticker","provider":"Pixelated Physics","version":"1.0","type":"link"}