pp 1-2 January 2012 Editorial

Editorial

K L Sebastian

pp 3-3 January 2012 Science Smiles

Science Smiles

Ayan Guha

pp 4-5 January 2012 Table of Contents

Table of Contents

pp 6-10 January 2012 Series Article

Dawn of Science - Measuring the Heavens

T Padmanabhan

pp 11-22 January 2012 General Article

Antoine-Laurent Lavoisier

Gopalpur Nagendrappa

pp 23-32 January 2012 General Article

Ehrenfest's Theorem and Nonclassical States of Light - Ehrenfest's Theorem in Quantum Mechanics

Lijo T George C Sudheesh S Lakshmibala V Balakrishnan

pp 33-43 January 2012 General Article

Do Trees Tell About the Past?

H S Suresh

pp 44-52 January 2012 General Article

From Hipparchus to a Helix Ruler

Jerold Mathews

pp 53-75 January 2012 General Article

States of Physical Systems in Classical and Quantum Mechanics

K S Mallesh S Chaturvedi R Simon N Mukunda

pp 76-82 January 2012 Classroom

A Walk Which Must be Irrational for the Same Reason That 1 is Not Congruent

B Sury

pp 83-91 January 2012 Reflections

Darshana Jolts - More on Force

V V Raman

pp 92-100 January 2012 Classics

Elements of Chemistry

Antoine-Laurent Lavoisier

pp 101-101 January 2012 Information and Announcements

Science Academies Refresher Course in Statistical Physics

pp 103-103 January 2012 Flowering Trees

Canthium parviflorum

pp 104-104 January 2012 Featured Scientist

Antoine-Laurent Lavoisier (1743-1794)