The first 100 people to use code SCIENCE at the link below will get 60% off of Incogni: https://incogni.com/science

This is a development of the barber pole illusion and is related to a few other illusions like the Mephisto Spiral (the spirals that won't come apart), the illusions ring and the rolling rings illusion.

Ada Cohen's 3D projects can be found here:
https://www.printables.com/@AdaCohen

You can buy the ring from Grand Illusions here:
https://www.grand-illusions.com/optical-illusion-ring-c2x21139886

My 3d printer is an Elegoo Neptune 2S:
https://www.elegoo.com/en-gb/collections/neptune-series-fdm-printers

You can buy my books here:
https://stevemould.com/books

You can support me on Patreon and get access to the exclusive Discord:
https://www.patreon.com/stevemould

just like these amazing people:

Tj Steyn
Pavel Dubov
Lizzy and Jack
Jeremy Cole
Brendan Williams
Alan Wilderland
Frank Hereford
Lukas Biewald
Damien Szerszinski
Marshall Fitzpatrick
Heather Liu
Grant Hay
John Zelinka
Paul Warelis
Matthew Cocke
Nathan Blubaugh


Twitter: http://twitter.com/moulds
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Buy nerdy maths things: http://mathsgear.co.uk