🌐EnglishEnglishDeutschEspañolFrançaisItalianoPolskiPortuguêsTürkçeРусский한국어中文日本語EntityQ1424492· pop 15· linked from 21 articlesPrandtl–Glauert singularityAlso known as Prandtl-Glauert Singularitythe point at which a sudden drop in air pressure occursAvailable in 15 languagesEspañolFrançais中文日本語PortuguêsItalianoBasqueBelarusianCatalanHebrewConnectionsspeed of soundEntityMach numberEntityCategoriesAerodynamicsObsolete theories in physicsPhysical phenomenaShock waves