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405 points blindgeek | 1 comments | | HN request time: 0.211s | source
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Rastonbury ◴[] No.42172733[source]
Some captchas are getting pretty discriminatory, not everyone lives in the West and can identify the objects they are asking you to. Another recent one sticks out where they asked me to pick a shape as the same number of conoids on screen. If you ask people on a street what a conoids I bet a significant amount will give you blank looks

Also at least now I know some people call those markings crosswalks

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croes ◴[] No.42173105[source]
But on the internet the answer to „what is a conoid“ is just a web search away.

The bigger problem is when other options of a captcha fit in another cultural context.

Taxi colors are an example for that.

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1. rovr138 ◴[] No.42173699[source]
> A conoid is a ruled surface whose rulings are parallel to a plane (called the directrix plane) and intersect a fixed line (called the axis of the conoid) (Gellert et al. 1989, p. 202). Examples include the circular conoid, helicoid, hyperbolic paraboloid, parabolic conoid, Plücker conoid, right circular conoid, Wallis's conical edge, Whitney umbrella, and Zindler conoid. If the axis is perpendicular to the directrix plane, the conoid is called a right conoid (Gray et al. 2006, p. 436).

https://mathworld.wolfram.com/Conoid.html