A symbol with diagonal lines dividing a red circle is often used to mean 'prohibited' or 'NG.' In addition to being seen on road signs in Japan, the United States Patent and Trademark Office (USPTO) ...
This optical illusion is a fairly simple one, but it’s still a very impressive effect. A triangle and some cunningly positioned diagonal lines are all that’s needed for your brain to tilt a perfect ...
Parallel lines are indicated by arrows going in the same direction. Parallel lines are indicated by arrows going in the same direction. If there is more than one set of parallel lines in a diagram, ...
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