A connection was established, and Shalin tried to make a call on earth. Hello, hello, anybody can hear me? Shalin said Yes, I can hear you, sir. Voice from the opposite side Shalin : Who are you? I want to talk with Dr. Narmadeshwar Tiwari. Silence from the opposite side Shalin: Hello, what happened? Opposite side: My name is Ronald, and I'm a senior scientist from NASA. Shalin : Okay, Mr. Ronald, I have turned on the normal speed mode. Now tell me, when should I turn on the light speed mode? Ronald: After reaching optimum speed, you have to