منابع مشابه
Why We Need A Revolution
By Calvina Fay, guest columnist, Executive Director, Drug Free America Foundation, Inc., www.dfaf.org The word on the street is that marijuana is not addictive and not harmful. Frequently, you will hear people justify its use by claiming that it is safer than alcohol. Thatâ€TMs like saying it is safer to slug someone in the face with a boxing glove, instead of with a bare fist. Both techniques ...
متن کاملWhy do we need theories?
Theories organize knowledge and construct objectivity by framing observations and experiments. The elaboration of theoretical principles is examined in the light of the rich interactions between physics and mathematics. These two disciplines share common principles of construction of concepts and of the proper objects of inquiry. Theory construction in physics relies on mathematical symmetries ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: EPMA Journal
سال: 2011
ISSN: 1878-5077,1878-5085
DOI: 10.1007/s13167-011-0065-2