Posted:
It cannot be said with certainty that the theory never got converted to practical just b coz no physical evidence was found. Not much physical evidence wud b found about our civilz too if it perishes. Our ancestors were not known to share their knowledge readily & thus lot of it has gone into oblivion. They seemed to B more concerned about knowldg not falling into wrong hands than propagating it.
Health and Fitness
Naagin 7
