{"product_id":"handmade-glass-klein-bottle","title":"Acme Klein Bottle Handmade Glass Klein Bottle — Clear Borosilicate, 8in Decorative Mathematical Sculpture","description":"\u003cp\u003e\u003cstrong\u003eAcme Klein Bottle is a hand-blown, one-sided glass sculpture that demonstrates a Klein bottle’s continuous surface in clear borosilicate glass.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis handmade glass Klein bottle blends precise glasswork with playful mathematical curiosity. Each piece is hand-blown from low-expansion borosilicate to highlight the continuous, nonorientable surface characteristic of a Klein bottle. It arrives with a removable calibration decal and a short informational insert to explain the geometry and talk-through practical handling tips. Because every bottle is made individually, shape and minor dimensions vary slightly, making each one unique.\u003c\/p\u003e\n\n\u003ch3\u003eWhat exactly makes this bottle a Klein bottle?\u003c\/h3\u003e\n\u003cp\u003eThe form is a three-dimensional model of the Klein bottle: a closed surface with a single continuous side and no boundary. Unlike ordinary bottles, it connects \"inside\" to \"outside\" smoothly so that the surface is nonorientable; topologically it does not separate space into interior and exterior volumes. The surface visually conveys mathematical concepts without needing any assembly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHand-blown clear borosilicate glass shows continuous, seamless curvature.\u003c\/li\u003e\n  \u003cli\u003eNonorientable topology: single-sided surface with no distinct edge or lip.\u003c\/li\u003e\n  \u003cli\u003eIncluded documentation explains the topology and handling tips.\u003c\/li\u003e\n  \u003cli\u003eRemovable calibration decal for scale or display measurements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow big is the glass Klein bottle and how fragile is it?\u003c\/h3\u003e\n\u003cp\u003eThe bottle measures roughly 8 inches tall with about a 4-inch diameter (approx. 20 x 10 cm) and weighs near 8 ounces (≈230 g). Borosilicate glass is chosen for its thermal stability and relative durability compared with ordinary glass, but the piece is still a delicate, decorative sculpture and should be handled with care. Avoid dropping or striking it; store on a stable surface or display stand.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eApproximate dimensions: 8\" tall x 4\" diameter (20 x 10 cm).\u003c\/li\u003e\n  \u003cli\u003eWeight: about 8 oz (230 g) for easy display placement.\u003c\/li\u003e\n  \u003cli\u003eMaterial: quality low-expansion borosilicate—more resistant to thermal shock.\u003c\/li\u003e\n  \u003cli\u003eCare tip: keep out of reach of pets and small children, use padded base for display.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use the Klein bottle for liquids or everyday use?\u003c\/h3\u003e\n\u003cp\u003eThe form allows liquid to be poured and to flow, but the Klein bottle’s continuous surface and narrow necks make thorough drying and cleaning difficult. It is primarily intended as a mathematical model and decorative object rather than a practical vessel for frequent liquid use. If you choose to introduce liquid for demonstration, do so cautiously and accept that residual moisture may remain inside.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFunctionally demonstrative: can hold liquid for short demonstrations.\u003c\/li\u003e\n  \u003cli\u003eNot recommended as a regular drinking vessel due to drying challenges.\u003c\/li\u003e\n  \u003cli\u003eCleaning: gentle rinse and slow air-dry; internal cloth access is impossible.\u003c\/li\u003e\n  \u003cli\u003eDocumentation includes safe-handling and demonstration suggestions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat’s included and what makes each unit unique?\u003c\/h3\u003e\n\u003cp\u003eEach Klein bottle ships with a removable calibration decal and a short informational sheet that explains the topology and practical handling. Because these are individually hand-blown, small differences in curvature, wall thickness, and exact scale are expected and intentional—the variations are part of the handcrafted appeal. The clear glass finish highlights the shape and refractive lines of the glasswork.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncluded: Klein bottle, removable calibration decal, printed documentation.\u003c\/li\u003e\n  \u003cli\u003eHandmade variability: slight differences in silhouette and dimensions per piece.\u003c\/li\u003e\n  \u003cli\u003eFinish: clear, non-colored glass that emphasizes form and light play.\u003c\/li\u003e\n  \u003cli\u003eMade by: Cliff Stoll, produced in low-expansion borosilicate for stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? This Acme Klein Bottle is ideal for math and physics enthusiasts, educators, collectors of scientific curiosities, programmers and students who enjoy tactile demonstrations of abstract concepts, and anyone who appreciates artisanal glass. It works well as a classroom prop, study-room accent, or thoughtful gift for a scientist or teacher—just keep in mind it’s a sculptural model first and an occasional demonstration vessel second.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the Klein bottle safe to wash?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Gentle rinsing is fine, but internal drying is difficult; avoid dishwashers and abrasive cleaning.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does each Klein bottle look exactly the same?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No—each is hand-blown, so small variations in shape and curvature make every piece unique.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Acme Klein Bottle","offers":[{"title":"Default Title","offer_id":48030856446113,"sku":"B017UY60MK","price":227.61,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/6532\/5729\/files\/acme-klein-bottle-front-view.jpg?v=1791414154","url":"https:\/\/canadiansporting.ca\/products\/handmade-glass-klein-bottle","provider":"Canadian Sporting","version":"1.0","type":"link"}