Every great physical theory starts as a hearsay and ends as a dogma. Given some exaples from the history of science, of the validity of this incivise remark.

Every great physical theory starts as a hearsay and ends as a dogma. G

1.	Every great physical theory starts as a hearsay and ends as a dogma. Given some exaples from the history of science, of the validity of this incivise remark.
Answer» Solution :The statement is true. For example in ANCIENT times, Ptolemy postulated that earth is stationary and all the HEAVENLY bodies like SUN, plents etc. revolve AROUND earth. Later, an Italian scientist, Galieo postulated that sun is stationary and earth alongwith other planets is revolving around the sun. Galileo was punished by the then authorities for spreading wrong concepts. However, later on Newton and Kepler supported Galileo's theory and now it is no more then a dogma.