Why didnt Prophet bring any new scientific discovery to enhance peoples life?

Why didn't Prophet bring any new scientific discovery, that would enhance peoples life and also show he had connection to a higher power that **knows** everything? A new medical discovery, a new engineering discovery, etc? I find it very hard to grasp why this didnt happen? Update : I believe some prophets did this, for example David did, Also Solomon invested heavily in building constructions of any kind of massive proportions. The point is, Islam engulfs all aspects of ones life, **literally** all aspects, and not only spirituality, and it always preaches about scientific symbols everywhere, and using ones brain to see God every where in everything. So its only logical, it brings some crafts in that regard.