Uploaded February 2013 | Updated September 2026, 1 week ago
On the channel ledwatchman several double helices are shown. The shape shown here is a variety with heptagons, the difference is that the spiraling is caused by the way size 2 heptagons form a flat double heptagon. They are rotated a little compared to each other, whereas ledwatchman connects hexagons straight and forces the spiral with a twist of the units. See for example his video 'Double Helix Variations (Magnetic Spheres)':
youtube.com/watch?v=21jBpcQqfdg
On the channel ledwatchman several double helices are shown. The shape shown here is a variety with heptagons, the difference is that the spiraling is caused by the way size 2 heptagons form a flat double heptagon. They are rotated a little compared to each other, whereas ledwatchman connects hexagons straight and forces the spiral with a twist of the units. See for example his video 'Double Helix Variations (Magnetic Spheres)':
youtube.com/watch?v=21jBpcQqfdg
