pp 817-819 September 2017 Editorial
pp 823-828 September 2017 Article-in-a-Box
pp 829-833 September 2017 General Article
The Nobel Prize in Physiology or Medicine 2016 was awardedto Yoshinori Ohsumi of the Tokyo Institute of Technology,Japan, for his discoveries of mechanisms for autophagy .
pp 835-845 September 2017 General Article
The Nobel Prize in Chemistry for the year 2016 was awardedto three illustrious chemists, Professors Jean-Pierre Sauvage,Sir Fraser Stoddart, and Ben Feringa. Pioneering works ofthese chemists on designing molecules, chemically synthesizingthem, and extracting a work out of such designedmoleculesopen-up a new area of chemistry in a paradigm shifting manner.Beginning with controlling the molecular motions, particularlyinvolving interlocked macrocycles in late 1980s, theadvancement progressed to envelop energy storage and retrieval,and varieties of examples around the concept. Molecularmotion alone can also be a rich source for such a workoutput has also been established. These developments possessthe required momentum to uncover a new area of chemistry,wherein energy input-output can be used beneficially to conducta useful work, in a close analogy to machines such as anelectric motor.
pp 847-866 September 2017 General Article
The brachistochrone problem posed by Bernoulli and its solutionhighlights one of the most famous experiments in physicswhich illustrates the variational principle. This pedagogicalstudy is designed to ignite a classroom discussion on the variationalproblem. We overview the Euler–Lagrange formalismof the variational principle and obtain the solution to thebrachistochrone problem. We demonstrate the success of thevariationalmethod using brachistochronemodels which werefabricated specially for this purpose.
pp 867-872 September 2017 General Article
The vibrating string problem is the source of much mathematicsand physics. This article describes Lagrange’s formulationof a discretised version of the problem and its solution.This is also the first instance of an eigenvalue problem.
pp 873-878 September 2017 Classroom
In this series of articles, the authors discuss various phenomenain fluid dynamics, which may be investigated via tabletopexperiments using low-cost or home-made instruments. Theseventh article in this series explores the formation, structure,and properties of antibubbles.
pp 879-887 September 2017 Classroom
The combinatorial problem discussed in this article is verysimple to state but needs the algebraic machinery of charactersof abelian groups.
pp 889-897 September 2017 Classics
pp 899-899 September 2017 Information and Announcements
pp 900-900 September 2017 Information and Announcements
pp 901-901 September 2017 Information and Announcements
pp 902-902 September 2017 Information and Announcements
pp 903-903 September 2017 Information and Announcements
pp 905-905 September 2017 Flowering Trees