خرید و دانلود نسخه کامل کتاب The Scientific American book of projects for the amateur scientist

CONTENTS
INTRODUCTION BY VANNEVAR BUSH XVII
“. . . the motivation of the scientist, professional or amateur, is the sheer joy of knowing.”
PREFACE BY C. L. STONG XXI
“. . . the fact that an experiment delivers an
unexpected answer means simply that you
have not asked the question you assume you
have asked”
I. ASTRONOMY
1. ASTRONOMICAL DIVERSIONS 3
A note about the delights of stargazing and
some fascinating instruments devised to overcome the limitations of the human eye.
2 . A SIMPL