mach

غير معدود · اسم علم

A proper noun referring to a specific person, typically a surname of a notable individual.

• 🌐اسم علم شخصي، يُستخدم غالبًا كاسم عائلة لشخصيات مشهورة، كما يشير إلى وحدة قياس سرعة الصوت في الطيران.

1. Austrian physicist and philosopher B2 formal

   Ernst Mach (1838–1916), a physicist and philosopher known for his work in shock waves and the philosophy of science, and for founding logical positivism.

   • Mach's work on supersonic flow revolutionized aerodynamics.
   • The term 'Mach number' is named after Ernst Mach.
   • Mach's principle influenced Einstein's theory of relativity.

   🌐فيزيائي وفيلسوف نمساوي

2. Unit of speed B1 formal scientific

   A dimensionless unit representing the ratio of an object's speed to the speed of sound in the surrounding medium.

   • The fighter jet flew at Mach 2, twice the speed of sound.
   • The aircraft broke the sound barrier at Mach 1.
   • The rocket achieved Mach 5 during re-entry.

   🌐وحدة سرعة

   المرادفات: mach number

• machs plural form
• machs' possessive plural form
• mach's possessive singular form