Jame' Atiq Mosque of Qazvin (current) Wave equation Liberty Records Dry run (terrorism) Stephen I of Antioch Dual Spires *Dʰéǵʰōm Brianzöö dialect Categorical imperative USS Nautilus (SSN-571) Giles Stibbert Cartoon Orbit Ronald Walker (weightlifter) Radionuclide Battle of Jahra Zero-crossing rate History of the Hindu–Arabic numeral system