1. Editorial

   • T. N. C. Vidya

   EditorialNotes 19 April 2023 Pages: 503 - 504

2. Science Smiles

   • Ayan Guha

   Announcement 19 April 2023 Pages: 505 - 505

3. August Friedrich Leopold Weismann (17 January 1834 to 05 November 1914)

   • Amitabh Joshi

   Article-in-a-Box 19 April 2023 Pages: 509 - 511

4. August Weismann and the Growth of Biological Understanding Between Darwin and the Rediscovery of Mendel

   • Amitabh Joshi

   General Article 19 April 2023 Pages: 513 - 525

5. Generating Planar Diffracting Apertures and Fraunhofer Diffraction Patterns Using Discrete Convolution and Fast Fourier Transform Techniques Part. 1

   • Pragati Ashdhir
   • Anshika
   • Chaudhary Eksha Rani

   General Article 19 April 2023 Pages: 527 - 536

6. Valleytronics

   • Jayakrishna Khatei
   • Babita Ojha
   • D. Samal

   General Article 19 April 2023 Pages: 537 - 546

7. Dark Skies and Bright Satellites

   • Priya Hasan

   General Article 19 April 2023 Pages: 547 - 565

8. Frontier — World’s First ExaFLOPS Supercomputer

   • V. Rajaraman

   General Article 19 April 2023 Pages: 567 - 576

9. Indispensable Assets for Rechargeable World

   • Pappu Naskar
   • Subhrajyoti Debnath
   • Anjan Banerjee

   General Article 19 April 2023 Pages: 577 - 596

10. Commuting Probability of Finite Groups

    • Snehinh Sen

    General Article 19 April 2023 Pages: 597 - 612

11. Bitesize Epidemiology for General Awareness of All Students — II

    • Shinjini Bandopadhyay
    • Angana Das Gupta
    • Prabuddha Gupta

    General Article 19 April 2023 Pages: 613 - 632

12. Research Work: Accidental, Repetitive or Fundamental?

    • Ahana Saha
    • Chandan Saha
    • Suchandra Chakraborty

    General Article 19 April 2023 Pages: 633 - 652

13. Linear Maps Between the Sequence Spaces c and c₀

    • Subiman Kundu
    • Manisha Aggarwal

    General Article 19 April 2023 Pages: 653 - 658

14. Writing Electronic Configuration: An Easy Approach

    • Simiyon G. Gnanamani

    Classroom 19 April 2023 Pages: 659 - 664

15. Proof Without Words but With Colors

    • David Fraivert
    • Moshe Stupel

    Classroom 19 April 2023 Pages: 665 - 667

16. Intersections 21: A (mostly) Scientific Crossword

    • Madhavan Mukund
    • Shobhana Narasimhan

    Crossword 19 April 2023 Pages: 668 - 670

17. Intersections 20: A (mostly) Scientific Crossword

    • Madhavan Mukund
    • Shobhana Narasimhan

    Crossword 19 April 2023 Pages: 671 - 671

18. Science Academies’ Refresher Course on ‘Quantum Chemistry’ (28 August to 12 September 2023)

    Information and Announcements 19 April 2023 Pages: 672 - 672

19. Birds in the Backyard

    • T. N. C. Vidya

    Announcement 19 April 2023 Pages: 674 - 674