
Fig. 204. §10 Shapes
Neon Knot
A glowing tube tied in a trefoil knot, the simplest true knot.
1Facts
- Shelf
- Shapes
- Kind
- Generated shape
- Sound
- Yes
- Licenses
- Own work (made in the page)
2How to play
Tap it to make it twist and writhe.
3About it
A glowing tube tied in a trefoil knot, the simplest true knot. Tie a knot in a string and join the two ends, and you get a loop that can never be untangled without cutting it; the trefoil crosses itself three times. Mathematicians study knots like this in a field called knot theory.
Tap it and waves of swelling loops run around the tube, lifting and twisting it as it glows pink, then it settles back into its trefoil. Real neon signs glow because electricity makes the gas inside the glass tube shine; pure neon glows red-orange.
4Sources and credits
Made in Splashery. Its code is MIT.

