Human chromosomes revealed by spectral karyotyping. (Credit: Dr Thomas Ried, NCI/NIH)
April 2009 Volume 14 Number 4 Contents
Walter Sutton and the Chromosome Theory of Heredity
--- S Mahadevan
Snippets of Physics
Lagrange has (more than) a Point! --- T Padmanabhan
Aerobasics An Introduction to Aeronautics
The Airplane Configuration
--- S P Govinda Raju
Molecule Matters van der Waals Molecules
History and Some Perspectives on Intermolecular Forces --- E Arunan
The Simple Pendulum: Not So Simple After All!
--- H P Kaumudi and Vasant Natarajan
Algorithms as Machines
--- Kamal Lodaya
Perfect Medians, Euler, and Ramanujan
--- A K Mallik
Solution to Are you Better off than Your Friend?
--- K B Athreya
The Scientific Enterprise
The Methods in Science --- V V Raman
On the Morphology of the Chromosome Group in Brachystola magna
--- Walter S Sutton
Erratum
--- Vidyanand Nanjundiah