Wow... Allahabadi, you are some piece of work. Pushpak Viman as the proof of flying vehicles? What is the evidence that the Ramayana is a historical document? None. Just becuse we hindus believe in it does not make it a historical document. The mahabharata, written after ramayana has no reference to pushpak viman. If Ravan had the technology, why didnt anyone else use it after him? Sorry, by that standard, Jesus invented the cure for leprosy and other (then) life threatening ailments. He was also the first to turn water into wine and walk on water, both feats hitherto unreplicated. Sorry mate, pushpak viman as evidence is like saying India invented the nuclear weapon in the form of Brahmastra. Greek mythology has a story of Icarus whose father makes fake wings by gluing feathers to his arms so that he could fly. These are all stories in morality, and must be treated as such, barring evidence to the contrary.
Aryabhatta made great contributions to astronomy, but hubble telescope is going much further. Aryabhatta calculated the diameter of the moon to great accuracy. However, hubble telescope studies heavenly bodies that are invisible to the human eye - (radio and microwave telescope).
Read the upanishadas and vedas to know your culture. Also read modern science, because it goes way beyond what's in the vedas.
PS: It is veda (the last 'a' pronounced as uh and not aa. Hindi has it as ved, sanskrit has it as ved-uh. The uh pronouned as the first alphabet in devanagiri. Veda is a masculine noun ending in 'uh' declining as ram-uh / dev-uh. Maybe if you studied any sanskrit, you would have known that)
