The BBC has produced a documentary podcast titled ‘Hope and fear: India’s space revolution’. Its host, Alok Jha of The Economist, interviewed me late last year as part of it, to provide a media perspective of the Indian space programme, in particular Gaganyaan, access to ISRO scientists, the role
A happy Lord of the Rings Day to you. This year I almost didn’t write this post because I don’t have anything to say about The Lord of the Rings itself. Chiefly, I have tired of the antics of men. It’s not about some good men and
A friend recently told me about a tool called climate.you that shows "temperature change, over land and sea", at all points on the earth's surface in a bid "to show how warming is already affecting people everywhere". You can enter the name of
Daily writing promptWhat is one word that describes you? View all responses Tall. I'm tall for India, around 6'3''. My height has recently been on my mind. India is not a good place for tall people. The public infrastructure is geared towards shorter people
On March 10, the Supreme Court said a balance has to be struck between warding against misinformation online and protecting citizens’ right to free speech. The context was the Centre’s attempts to defend the 2023 IT Rules: when the comedian Kunal Kamra asked who would decide if online content
Tungsten diboride (WB2) is extraordinarily stiff and resistant to deformation and scientists have long suspected it could be a superhard material, meaning it scores at least 40 gigapascal (GPa) on a hardness test. This is important because diamond, the hardest natural material on Earth, scores 70-100 GPa but because it
Daily writing promptWhat movies or TV series have you watched more than 5 times? View all responses I'm afraid the answer is F.R.I.E.N.D.S. My sister and I watched it growing up, then rewatched it, the re-rewatched it, and now then have it
From ‘Formalizing the stability of the two Higgs doublet model potential into Lean: identifying an error in the literature’, uploaded to arXiv on March 9, 2026: Firstly, we believe this to be the first time a non-trivial error in a research level physics paper has been identified through the process
Google News picks up on science stories that many outlets are covering. Its reasoning is that the more outlets publish a particular story, the more reader interest the story has. However, the flaw here is that news outlets don’t evaluate all kinds of science developments on an equal footing
Everyone who knows me knows that my intellectual coordinates are defined by scientific ideas, even when they’re about sociology or the humanities. This is why I found a new book, Decolonial Keywords: South Asian Thoughts and Attitudes, edited by anthropologists Renny Thomas and Sasanka Perera, so compelling. The book
A quantum battery is a system that stores energy and whose working parts are quantum systems, such as atoms, ions, spins, superconducting circuits or quantum dots, so the processes of storing and extracting energy are governed by quantum mechanics. Imagine you have a row of toy boxes. Each box can
The science writer Philip Ball has described “nerd tunnel vision” as the rationalisation scientists who maintained ties with Jeffrey Epstein after his 2008 conviction for soliciting underage sex offered, hinting at something more calculated than just oversight. “Nerd tunnel vision is a defining feature of much of the Edge discourse,
Scicomm
The nucleus of the thorium-229 isotope has a special property: it has an excited state that's incredibly close in energy to its ground state. The existence of such an isomer is remarkable because when nuclei normally get excited, they need enormous amounts of energy — hundreds of thousands or
Culture
One of the advertisements during the ongoing T20 cricket World Cup on Star Sports India has been for Sprite, the carbonated beverage from the Coca-Cola Company. In the ad, it's a hot day, two people are irritated by the heat and humidity, and they beat it by taking
Scicomm
On Monday night, I kid you not, I dreamt of the Birch and Swinnerton-Dyer conjecture. It was only by name, a fleeting mention in a heated conversation I was having with a friend. I'm not sure who spoke it or why. When I woke up, I looked it
Op-eds
“If the National Democratic Alliance (NDA) comes to power, it will ruin the developed State of Tamil Nadu” — Tamil Nadu Chief Minister M.K. Stalin said this in his address to a local conference organised by the Indian Union Muslim League in Kumbakonam on January 28. While Stalin’s claim
Culture
The following post was motivated by this exchange (on X.com), which prompted me to write out my understanding of the Copenhagen interpretation of quantum mechanics and the part the Heisenberg cut plays in it. I haven’t gone into the variants of the interpretation that Maria Violaris brings up;
Analysis
From 'Cosmic dawn: the search for the primordial hydrogen signal', Physics World, November 18, 2025: The EDGES instrument is a dipole antenna, which resembles a ping-pong table with a gap in the middle. It is mounted on a large metal groundsheet, which is about 30 × 30 m. Its
Analysis
For all the ways in which the Indian people are divided these days, they're seemingly united in their desire to set records. On January 22, a tinkerer named Sohan Rai, a.k.a. “Zikiguy”, said on Instagram that he and his team “are planning to do India’s
Analysis
A.k.a. the importance of public scrutiny
Analysis
According to particle physics, the fundamental building blocks of the universe are point-like particles, essentially small dots of energy with no dimension. String theory posits that these dots are actually minuscule vibrating loops of energy. A violin string vibrating at different frequencies produces different musical notes; similarly these filaments are
Scicomm
The search for dark matter, the invisible ‘glue’ that holds galaxies together, has long focused solely on subatomic particles and this could be a mistake if a new study Physical Review D is to be believed. Its sole author, William DeRocco, a postdoctoral scholar at the Maryland Centre for Fundamental
Uncategorized
Daily writing promptDo you play in your daily life? What says “playtime” to you? View all responses I work in an office with many lovely and smart people and I find engaging them in conversation is playtime. It's a social activity, almost always enlivening, and I (and hopefully
Analysis
Daily writing promptHow have your political views changed over time? View all responses When I first had any views at all, I think I was in the second year of my engineering studies, in 2007, and decided I was a right-winger. Of course I understood very little of what that