Raja muqaddar A.
"Chand Par Sunai Nahi Deti: Ek Ajeeb Si Sachaai" (Translation: "No Sound on the Moon: A Strange Reality") Yeh title isliye rakha gaya hai kyunki chand par hawa na hone ki wajah se sound waves travel
Bilkul! Chand par hawa نہیں ہے, is liye sound waves travel نہیں kar sakti. Sound waves ko travel karne ke liye kisi medium ki zaroorat hoti hai, jaise hawa, paani ya thos cheezein. Chand par vacuum hai, jahan sound waves travel نہیں kar sakti. Is wajah se, astronauts chand par ek dusre ko sun نہیں sakte, aur ve raido communication ka istemal karke ek dusre se baat karte hain. Radio waves electromagnetic waves hoti hain jo vacuum mein bhi travel kar sakti hain. Is tarah, astronauts chand par apne mission ke dauran ek dusre se رابطہ rakhte hain aur apne kaam ko aasaan banate hain.