Rajaram Nityananda
Articles written in Resonance – Journal of Science Education
Volume 1 Issue 2 February 1996 pp 2-3 Article-in-a-Box
Chief Editor's column - After the Eclipse
Volume 1 Issue 2 February 1996 pp 111-114 Research News
Bose-Einstein Condensation Observed
Volume 1 Issue 9 September 1996 pp 83-85 Research News
Galaxies — Off to a Flying Start? New Telescopes Tell us Stars Were Made Very Early
Volume 2 Issue 3 March 1997 pp 82-84 Think It Over
Volume 2 Issue 3 March 1997 pp 85-86 Research News
The Space Telescope Looks for Black Holes - Monsters Lurk at the Centres of Many Galaxies
Volume 2 Issue 4 April 1997 pp 4-4 Article-in-a-Box
Bare nuclei and relativistic electrons
Volume 3 Issue 5 May 1998 pp 2-2 Article-in-a-Box
Thermal Ionisation and the Saha Equation!
Volume 3 Issue 8 August 1998 pp 74-75 Reflections
Volume 4 Issue 1 January 1999 pp 67-67 Think It Over
Volume 4 Issue 2 February 1999 pp 24-26 General Article
Schrödinger’s Uncertainty Principle? - Lilies can be Painted
Volume 4 Issue 2 February 1999 pp 82-82 Think It Over
Answer to ‘Locate the Electrons’
Volume 4 Issue 4 April 1999 pp 88-90 Research News
The 1998 Physics Nobel Prize - Electrons Behave as if Split into Three
Volume 4 Issue 12 December 1999 pp 1-1 Editorial
Volume 5 Issue 1 January 2000 pp 1-1 Editorial
Editorial / Associate Editor’s Column
Volume 5 Issue 2 February 2000 pp 1-1 Editorial
Editorial / Associate Editor’s Column
Volume 5 Issue 2 February 2000 pp 63-67 Classroom
Poincaré and Celestial Mechanics
Volume 5 Issue 3 March 2000 pp 1-3 Editorial
Volume 5 Issue 4 April 2000 pp 1-3 Editorial
Editorial / Associate Editor’s Column
Volume 5 Issue 4 April 2000 pp 46-51 General Article
Bose–Einstein Condensation - Birds of a Feather Flock Together
Volume 6 Issue 9 September 2001 pp 8-18 General Article
The Importance of Being Ignorant - Using Entropy for Interpretation and Inference
Volume 6 Issue 10 October 2001 pp 101-101 Classics
Volume 10 Issue 12 December 2005 pp 52-54
Schrodinger's Uncertainty Principle? - Lilies can be Painted
Volume 10 Issue 12 December 2005 pp 142-147
Bose-Einstein Condensation - Birds of a Feather Flock Together
Volume 10 Issue 12 December 2005 pp 163-163
Thermal lonisation and the Saha Equation
Volume 16 Issue 4 April 2011 pp 299-301 Article-in-a-Box
Robert H. Dicke – Physicist Extraordinaire
Vasant Natarajan Rajaram Nityananda
Volume 18 Issue 1 January 2013 pp 7-8 Article-in-a-Box
Volume 18 Issue 1 January 2013 pp 29-38 General Article
Volume 18 Issue 4 April 2013 pp 299-300 Editorial
Volume 18 Issue 4 April 2013 pp 301-305 Article-in-a-Box
S Pancharatnam (1934–1969): Three Phases
Rajaram Nityananda Kausalya Ramaseshan N V Madhusudana G W Series
Volume 18 Issue 4 April 2013 pp 309-322 General Article
The Interference of Polarised Light - The Pancharatnam Phase
Volume 19 Issue 1 January 2014 pp 73-81 General Article
Fermi and the Art of Estimation
Volume 19 Issue 9 September 2014 pp 779-783 Article-in-a-Box
Vladimir Igorevich Arnold (1937-2010)
Volume 19 Issue 9 September 2014 pp 787-796 General Article
Singularities in a Teacup: Good Mathematics from Bad Lenses
Volume 19 Issue 10 October 2014 pp 966-969 Information and Announcements
B Sury Rajaram Nityananda Dipshikha Chakravortty
Volume 20 Issue 1 January 2015 pp 1-2 Editorial
Volume 20 Issue 2 February 2015 pp 91-92
General Editorial on Publication Ethics
R Ramaswamy Rajaram Nityananda
Volume 20 Issue 2 February 2015 pp 95-95 Editorial
Volume 20 Issue 3 March 2015 pp 187-187 Editorial
Volume 20 Issue 5 May 2015 pp 373-373 Editorial
Volume 20 Issue 5 May 2015 pp 389-400 General Article
Diffraction at a Straight Edge: A Gem from Sommerfeld's Work in Classical Physics
Volume 20 Issue 6 June 2015 pp 560-570 Classics
Rajaram Nityananda K R Parthasarathy
Volume 20 Issue 7 July 2015 pp 571-571 Editorial
Volume 20 Issue 8 August 2015 pp 663-663 Editorial
Volume 20 Issue 10 October 2015 pp 863-863 Editorial
Volume 20 Issue 10 October 2015 pp 869-879 General Article
Discovering the Rotation of our own Galaxy: The Astronomer as Detective
Volume 20 Issue 11 November 2015 pp 959-962 Article-in-a-Box
Edwawrd Mills Purcell (1912-1997)
Volume 20 Issue 12 December 2015 pp 1077-1078 Editorial
Volume 20 Issue 12 December 2015 pp 1079-1081 Article-in-a-Box
Charles Hard Townes (1915-2015)
Volume 20 Issue 12 December 2015 pp 1111-1127 General Article
Sun, Sky and Cloud: Where Light and Matter Meet
Volume 21 Issue 1 January 2016 pp 5-5 Editorial
Volume 21 Issue 3 March 12 pp 206-209 Article-in-a-Box
Volume 21 Issue 3 March 12 pp 289-294 Book Review
Volume 21 Issue 4 April 2016 pp 297-297 Science Smiles
Volume 21 Issue 4 April 2016 pp 369-375 General Article
The Bondi Approach to the Lorentz Transformation: From Alpha to Delta
Volume 21 Issue 5 May 2016 pp 395-400 General Article
Prasad Perlekar Rajaram Nityananda
Steven Vogel was a pinoneer in applying principles of mechanics to diverse living systems. This article first provides a brief overview of his career. It then reviews the concepts of P´eclet number and Reynolds number which are helpful in appreciating the Classics article by Vogel reproduced in this issue.
Volume 22 Issue 5 May 2017 pp 437-439 Article-in-a-Box
Igor Rotislavovich Shafarevich (1923-2017)
Volume 22 Issue 5 May 2017 pp 509-511 Book Review
Volume 22 Issue 7 July 2017 pp 645-657 General Article
Measuring the Sizes of Stars: Fringe Benefits of Interferometry
Stars, other than the Sun, appear to our unaided eyes aspoints of light. Large telescopes show an image whose sizeis dictated by refractive index irregularities in the Earth’s atmosphere.The size of this blurring is much greater than thatof the star, and hence it is difficult to measure the stellar size.Fizeau showed how one might overcome this limitation usingthe two-slit interference technique. It was Michelson whocarried out this programme and made the first direct measurementof the giant star Betelguse in the constellation ofOrion. His value for the angular diameter, 47 milliarcsecondsor 2.6×10−7 radians, was completely confirmed by laterwork following his methods. The key concept introduced was
‘fringe visibility’, which turned out to be very fruitful in thelater development of optics as well as astronomy.
Volume 22 Issue 11 November 2017 pp 1085-1091 General Article
The Rayleigh-Taylor Instability Among the Stars
The instability of the interface separating a denser fluid froma lighter one below it has applications to the surroundings ofmassive stars – both when they are born and when they die.
Volume 23 Issue 2 February 2018 pp 143-146 Article-in-a-Box
Volume 24 Issue 5 May 2019 pp 517-527 General Article
A Black Hole Finally (Un)Seen in the Centre of a Galaxy:The Sharpest Image Ever
The uneven ring of radio emission at the centre of the distantgalaxy,M87, has excited astronomers, physicists, and thegeneral public, as the first view of a black hole. Everythingabout the project, known as the EHT – Event Horizon Telescope
– is extreme. The observation combines signals fromradio telescopes distributed over an entire hemisphere, operatingat millimetre wavelengths on high mountains and atthe Earth’s poles. These telescopes are synchronised by thebest atomic clocks, and massive amounts of data recordingand number crunching were needed. To interpret the results,elaborate models of the energy source, based on Einstein’sgeneral theory of relativity (GTR) were constructed.The team had over three hundred scientists from more thana hundred institutions, some of whom worked for nearly adecade towards this goal.
Volume 24 Issue 7 July 2019 pp 729-734 General Article
G N Lewis and Special Relativity: A Little Known Side of a Great Chemist
In 1909, Lewis and Tolman, then physical chemists at theMassachusetts Institute of Technology, wrote a paper whichbuilt on an earlier paper by Lewis. This gave amoremechanicsbasedapproach to the subject, in contrast to Einstein’s originalwork which drew on electrodynamics. This work playeda significant role in the early development of special relativitytheory, then only four years old and still under heated discussionworldwide. This paper with Tolman, though a relativelyminor part of Lewis’s overall work, has historical and pedagogicalvalue and gives a glimpse of his breadth, early growthand influence as a scientist. The present article outlines thearguments of their 1909 paper, and places it in context.
Volume 26 Issue 6 June 2021 pp 841-850 Classroom
Mathematics of Securing a Box With a Single Rubber Band
Jayanth Vyasanakere P Rajaram Nityananda
In this article, we study the configuration of a rubber bandwrapped around a (sweet) box. The rubber band is a looptrying to attain minimum length. We, therefore, study suchcurves, also known as closed geodesics, on a cuboid whichis the typical shape of such a box. The arguments should beaccessible even to a high school student, while the conclusionshave elements of surprise and hence interest.
Volume 27 Issue 2 February 2022 pp 273-282 Classroom
Optimal Extraction of Heat: An Instructive Problem
Jayanth Vyasanakere P Rajaram Nityananda
In this article, we pose a challenge concerning an optimal algorithm for transferring heat from a hot liquid to a cold one. The solutions discussed here demonstrate the usefulness of choosing the right variables. We illustrate different possible approaches---algebra, calculus, and numerical simulation--each of which has its charm. Instructors can make good use of this to illustrate multiple methods of problem-solving in an undergraduate classroom.
Current Issue
Volume 28 | Issue 9
September 2023
© 2023-2024 Indian Academy of Sciences, Bengaluru.