2.33 A great physicist of this century (P.A M Dirac) loved playing with numerical values ofFundamental constants of nature. 3nis led him to an interesting observation. Diracfound that from the basic constants of atomic physics (c, e, mass of electron, mass ofproton) and the-gravitational consiant G, he eould arrive at a number with thedimension of time. Further, it was a very large number, its magnitude being close ftthe present estimate on the age of the universe (15 billion years). From the table offundamental constants in this book ty to see if you too can construct this number(or any other interesting number yot can think of ). If its coincidence with the age ohe universe were signtficant, what would this imply for the constancy of fundamentalconstants?

2.33 A great physicist of this century (P.A M Dirac) loved playing wit

1.	2.33 A great physicist of this century (P.A M Dirac) loved playing with numerical values ofFundamental constants of nature. 3nis led him to an interesting observation. Diracfound that from the basic constants of atomic physics (c, e, mass of electron, mass ofproton) and the-gravitational consiant G, he eould arrive at a number with thedimension of time. Further, it was a very large number, its magnitude being close ftthe present estimate on the age of the universe (15 billion years). From the table offundamental constants in this book ty to see if you too can construct this number(or any other interesting number yot can think of ). If its coincidence with the age ohe universe were signtficant, what would this imply for the constancy of fundamentalconstants?
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