abelleh, lets face it, learning science is only a mitzvah if you do it and keep in mind what you learnt in order to think about hashem. for 90% of the people that isnt happening, so you cant start telling everyone – -learn scince its a mitzvah d’oraisah.
so as a rule, learning science is bitul torah. besides, once you get technical with all the scientific info most people wont even equate that with “niflaos haboreh”. and according to you – -playing ball is also a mitzvah d’oraisah, which i agree it could be if it is needed. but i definitely wouldnt go out to everyone and say – -play ball, its a mitzvah d’oraisah!
dont push your agenda for secularism