Follow

The width/height ratio of credit cards is the golden ratio

@valleyforge isn't it ID2? that is equal to A7 which has a ratio of "1 / sqrt(2)"

@valleyforge but 1/sqrt(2) is just close to golden, squareroot of 2 is ~ 1.41, golden ratio is ~ 1.61. they both have interesting properties though :)

Sign in to participate in the conversation
Qoto Mastodon

QOTO: Question Others to Teach Ourselves
An inclusive, Academic Freedom, instance
All cultures welcome.
Hate speech and harassment strictly forbidden.