the universe must also is isotropic. Now we know that no matter what direction we look at, the noise change will not exceed 1/10000. In this way, Penzias and Wilson inadvertently confirmed FriedmaAbout the same time, two American physicists in the nearby Princeton, Robert Dick and James Pipars also interested in microwave. They are studying George Gamov (who was Alexander Friedman's student) a view: the early universe must be very dense, whiten's first hypothesis.