Articles by Prerna Madan
City's population, 20m from trees, open on three sides: The rules for placing air quality monitors

Updated on Nov 6, 2026 09:16 IST
Bengaluru hotel deaths: What India's safety code says for swimming pool electricals

Updated on Nov 1, 2026 12:06 IST
Isro NVS-03 satellite launch: The science and setbacks behind NavIC, India’s version of GPS

Updated on Oct 31, 2026 05:12 IST
How climate crisis is hurting India more than the world, from deaths to diseases

Updated on Oct 28, 2026 05:26 IST
The engineering that lets flex-fuel cars run on E85 and E100, and why ordinary petrol cars cannot

Updated on Oct 27, 2026 06:58 IST
Millions in Finland are watching six puppies on live stream. The science of its appeal and ‘slow TV’

Updated on Oct 25, 2026 03:40 IST
As crowds fill streets from France to Albania, the science of how protests take off and spread

Updated on Oct 21, 2026 17:40 IST
From Bastille to this month's riots, the long history and culture of street protests in France

Updated on Oct 20, 2026 09:49 IST
The whale in Whalefall could technically swallow a person. There’s no record one ever has

Updated on Oct 17, 2026 14:24 IST
Navi Pillay’s grandparents were ‘indentured labourers’: The story of how Indians reached Africa

Updated on Oct 17, 2026 09:28 IST
flydubai attack; all safety features inside an aeroplane mapped HT Immersive

Updated on Oct 14, 2026 12:15 IST
Hijack scare on Air India flight: Code 7500 and the protocols it sets in motion

Updated on Oct 14, 2026 10:24 IST
London's Hyde Park to Delhi's Jantar Mantar, idea and history of ‘designated’ protest sites

Updated on Oct 13, 2026 06:13 IST
The question of ‘energy drink’ label lands in court: Inside the cans is mostly caffeine and sugar

Updated on Oct 11, 2026 06:11 IST
Margaret Hamilton and the women behind modern computing's evolution

Updated on Oct 11, 2026 04:23 IST
CJP protest: The law that allows Delhi Police to set up barricades, checkpoints and restrict traffic

Updated on Oct 10, 2026 07:28 IST
Ambedkar wanted no voter left out due to 'prejudice, whim': Making of India's first electoral roll

Updated on Oct 6, 2026 08:56 IST
Unknown pneumonia: What Russia's first remarks say and don't say about Siberia plague fears

Updated on Oct 5, 2026 12:09 IST
Flydubai flight ‘fell 14,000 feet in about half-a-minute': What happens to a plane when it dives?

Updated on Oct 2, 2026 09:26 IST
Flydubai pilot fight: Emergency codes, locked doors & hijackings that shaped flight safety rules

Updated on Oct 1, 2026 07:32 IST
Mapping seven months of Iran war, from Hormuz to the Red Sea | HT Immersive

Updated on Oct 2, 2026 11:18 IST
Fee behind every card swipe now comes to UPI: How the charge works, how it began

Updated on Sep 16, 2026 16:41 IST
Bengaluru ‘peptide party’: The Silicon Valley trend, what science says about it

Updated on Sep 2, 2026 15:31 IST
'Covert' Khan Market reel: What Meta's smart glasses can do & how to spot them

Updated on Aug 27, 2026 12:52 IST
They loiter, then dive: The weapons ex-CDS referred to in Op Sindoor remarks

Updated on Aug 26, 2026 09:19 IST
Rain, then ruin: The science of why roads in India crater after monsoon showers

Updated on Aug 26, 2026 02:33 IST
New $100,000 walls? What H-1B visa, OPT fees could mean for Indians in the US

Updated on Aug 25, 2026 06:14 IST

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