An arbitrary waveform generator (AWG) is a specialized electronic test instrument that can create any waveform shape the user ...

Pattern recognition brain teasers are designed to challenge your ability to identify trends, sequences, and relationships ...

Infinitely many copies of a 13-sided shape can be arranged with no overlaps or gaps in a pattern that never repeats. David Smith, Joseph Samuel Myers, Craig S. Kaplan and Chaim Goodman-Strauss () ...

A 13-sided tile called “the hat” forms a pattern that covers an infinite plane yet it cannot repeat, making it a long-sought shape known as an “einstein.” ...