Editorial

--- C S Yogananda

Science Smiles

--- Ayan Guha

Remembering Shreeram S Abhyankar

--- Sudhir R Ghorpade

The Ladies’ Diary

Puzzles and Riddles from the Era of Newton!

--- B S Shylaja

Fascinating Organic Molecules from Nature

Using a Natural Product to Catch Fish! The Chemistry of Rotenoids

--- N R Krishnaswamy and C N Sundaresan

Challenges in the Quest for Clean Energies

Solar Energy Technologies

--- Sheela K Ramasesha

Rotational Rectification of an Alternating Magnetic Field

--- N Kumar

Grappling with ‘Natural Selection’ – Experiences of a Teacher

--- Abdul Jamil Urfi

What is ‘Natural’ in Natural Selection?

--- Abhijeet S Bardapurkar

Resolution of Singularities and Modular Galois Theory

--- Shreeram S Abhyankar