1. Editorial

   • Biman Nath

   Departments Pages: 1 - 1

2. Panchanan Maheshwari FRS — A karmayogi (1904–1966)

   • N. S. Rangaswamy

   Departments Pages: 2 - 5

3. What can we learn from the electromagnetic spectrum?

   • A. W. Joshi
   • Alok Kumar

   General Article Pages: 8 - 25

4. A promising approach to the twin prime problem

   • Bhaskar Bagchi

   General Article Pages: 26 - 31

5. Twin primes and the Pentium chip

   • C. S. Yogananda

   General-Article Pages: 32 - 32

6. IPv6: The next generation Internet Protocol

   • Harsha Srinath

   General Article Pages: 33 - 41

7. Chemistry triggered the first civil disobedience movement in India

   • Gopalpur Nagendrappa

   General Article Pages: 42 - 48

8. Nothing in biology makes sense without the flavour of mathematics

   • H. A. Ranganath

   General Article Pages: 49 - 56

9. How much flour should you pack in a 1 kg packet: Use of a Gaussian model

   • T. Krishnan
   • L. Shankar Ram

   Classroom Pages: 57 - 63

10. Project lifescape -11 hunter plants

    • Dipanjan Ghosh

    Classroom Pages: 64 - 70

11. Brownian motion: Theory and experiment a simple classroom measurement of the diffusion coefficient

    • Kasturi Basu
    • Kopinjol Baishya

    Classroom Pages: 71 - 80

12. Classroom experiment to verify the Lorentz force

    • Somnath Basu
    • Anindita Bose
    • S. Chatterjee

    Classroom Pages: 81 - 86

13. Review of a ‘A Primer on Logarithms’

    • P. D. Chawathe

    Book Review Pages: 87 - 88

14. The World of the Worm

    • S. Mahadevan

    Research News Pages: 89 - 94

15. Refresher Course in Molecular and Developmental Genetics July 2–14, 2003

    Information and announcements Pages: 95 - 95

16. KVPY FELLOWSHIPS 2003

    Information and Announcements Pages: 96 - 96