Jai Sai Master!
Today, the natural leaning of human kind, or of the majority of human kind, stands somewhere between believer and non-believer of the word GOD. Many a people feel shy to talk about GOD or the related matters, feigning mostly based on the situation they are in. In sly, however, they tend to fear to do anything that remotely feels "against GOD". Why do people develop this perspective? Do we feel inferior thinking that current science contradicts belief in GOD? I feel, this is purely due to improper handing over of knowledge or Knowledge transfer from generation to generations or IMPROPER UNDERSTANDING OF OUR HOLY SCRIPTURES.
We look up to the west thinking that development is happening there and science is progressing rapidly, while it is a fact that our older generations had better knowledge of everything. In this information technology age, when everything can be searched for, we rarely do the right thing, but still depend on tit-bits or hearsay. Unfortunate!
How many of us know that Sri Bharadwaja Maharshi wrote a book named "Yantra Sastram" which describes various machines, planes and their parts? It explains in detail how one can escape enemy planes or directional guides etc..(Vymanika Sastram). Sri Rama asks Bharata whether the fort is being protected by machines appropriately. Raja Bhoja in his scripture "Samarangana Sutradhara" explains what qualities should be there for machine parts, their inter-dependence, perfection and tuning etc for sound proof movement and fuel efficiency. In chapter 31, the generation of hydraulic power is explained.