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Topology Explorer NEW
Twist, stretch and loop through shapes, knots and surfaces! 🔁🍩🪢
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🔵Shapes & Surfacesspheres, cubes, donuts
🪢Knotsloops, no loose ends
🔁Homeomorphismstretch, don't tear
🧮Euler's FormulaV − E + F = 2
♾️Klein Bottleno inside or outside
Choose your level:
Answer questions about shapes, loops, knots and surfaces. Learn a fun topology fact after every answer!