The Cosmic Microwave Background radiation was emitted 13.7 billion years ago, that is hundred thousand years after the Big Bang.
The radiation is known to be the remnant leftover of the big bang. The temperature of earth was very hot previously. The radiations emitted at that time has been considered as the leftover thermal energy from the Big Bang.
First generation: 4 students. Second generation : 16 students ( or 4^2 )... Fifth generation: 4^5 = 1,024 Answer: For 5 generations 1,024 people will know this art.
