Resonance     journal of science education

September 1998 Volume 3 Number 9
Editorial 
N. Mukunda
Emmy Noether
Mythily Ramaswamy
  SERIES ARTICLES
06 Great Experiments in Physics Discovery of Transistor Effect that Changed the
Communication World
Amit Roy
  GENERAL ARTICLES
14 Where on Earth am I? Don't Worry, GPS Satellites will Guide you Mechanisms and Uses of GPS
Makarand Phatak
26
 Listening to the Shape of a DrumThe Mathematics of Vibrating Drums
S Kesavan
35 What do Psychologists do? Two Examples from Research in Cognitive Psychology
Kamala Mukunda
45 Optoelectronic Implementation of Neural Networks Use of Optics in Computing
R Ramachandran
56 Ultrasound: A Boon in the Synthesis of Organic Compounds
Vasundhara Singh, Kanwal Preet Kaur, Anupam Khurana and G L Kad
  FEATURE ARTICLES
61 Digital WatermarksAuthentication of Digital Data
H R Madhusudan
70 CLASSROOM
  Buffon's Needle Problem Revisited
S Chakraborty & S Natarajan
  Teaching Biological Evo-lution Effectively
M S Rajadhyaksha & B S Mahajan
81 THINK IT OVER
  How much can pH Change through Dilution?
Anirban Sadhu
  Answer to Burning Question, March 1998
Vilas Gohad
83
 REFLECTIONS
Hardy’s “A Mathematician's Apology”
L J Mordell
90
 INFORMATION AND ANNOUNCEMENTS
National Centre for Radio Astrophysics
V K Kapahi
International Maths Olympiad
C S Yogananda


Front Cover
Listening to the heavens: a view of the Giant Metrewave Radio Telescope near Pune

Back Cover
Emmy Noether
(1882–1935)
( Illustration by Prema Iyer )

 

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