Kempegowda International Airport | HOK

 HOK

Kempegowda International Airport designed by HOK, The expansion of Terminal 1 repositions South India’s busiest airport as an important hub for international travelers and cargo. © Sam Fentress ...

Britain used these “Concrete Acoustic Mirrors” to detect enemy aircraft before radar

Yosra M. Ahmed

Have you ever wondered if there was a way to detect aircraft before the invention of the radar system in 1935? Well, yes there was, actually, a system known as ‘acoustic mirrors’ which the British ...