pp 1-1 April 2003 Editorial

Editorial

M K Chandrashekaran

pp 2-5 April 2003 Article-in-a-Box

Thomas Bayes

Mohan Delampady

pp 6-7 April 2003 Table of Contents

Table of Contents

pp 8-16 April 2003 General Article

IPv6: The Next Generation Internet Protocol - New Features in IPv6

Harsha Srinath

pp 17-26 April 2003 General Article

Markov Chain Monte Carlo Methods - Simple Monte Carlo

K B Athreya Mohan Delampady T Krishnan

pp 27-32 April 2003 General Article

The Beginning of Biochemistry

T Ramasarma

pp 33-43 April 2003 General Article

Exploring the Atmosphere with Lidars - Basics and Applications

S Veerabuthiran

pp 43-43 April 2003 Information and Announcements

Homi Bhabha Centre for Science Education Tata Institute of Fundamental Research

pp 44-56 April 2003 General Article

Precession of the Equinoxes and its Importance in Calendar Making

Utpal Mukhopadhyay

pp 57-61 April 2003 General Article

Nitrix Oxide: The Wonder Molecule

Kushal Chakraborty

pp 62-63 April 2003 Classroom

Area and Volume of a Spherical Cap – Revisited

S N Maitra

pp 64-65 April 2003 Think It Over

On Sums of Powers of Digits

Shipra Mital

pp 65-65 April 2003 Information and Announcements

Refresher Course on Probability, Statistics and Stochastic Processes

pp 66-68 April 2003 Book Review

500 Years of Tantrasangraha – A Landmark in the History of Astronomy

B S Shylaja

pp 69-76 April 2003 Research News

Chemistry Nobel Prize 2002 - Mass Spectrometry

M Vairamani

pp 77-79 April 2003 Research News

New Results in Microwave Background Anisotropy from WMAP

Biman Nath

pp 80-88 April 2003 Classics

An Essay Towards Solving a Problem in the Doctrine of Chances

Thomas Bayes

pp 89-89 April 2003 Flowering Trees

Anogeissus sericea var. nummalaria King ex Duthie

pp 90-90 April 2003 Featured Scientist

Thomas Bayes (1702-1761)