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The Hindu

Science/Tech / The Hindu

How did landline phones work during power cuts?

Imagine theres a power cut, but your phone still works. Sounds impossible today, but for decades, thats exactly what traditional landline phones could do.

27 Jul 2026 2:42 pm
Comet which makes appearance once in 5.5 years now visible in Bengaluru sky

The comet has been becoming brighter during June and July, and it will continue to be observable through late July and the first half of August, with peak visibility occurring around August 2 and 3

27 Jul 2026 1:52 pm
Lets go round and round: the history and science behind carousels

Carousel, carrousel, merry-go-round, flying horses, galloper... this amusement ride goes by many a name, but the joy it brings is always the same. A.S.Ganesh hops aboard this evergreen ride, picks a horse to seat himself and regales you with stories about it...

27 Jul 2026 12:51 pm
Indias first dengue vaccine arrives with a crucial safety caveat

Qdenga could be responsible for enhancing dengue in children who have not had an infection yet in their lives. In such cases, the vaccine could simulate a primary dengue infection in the body, resulting in protection against DENV-1 and DENV-2 infections but not against a DENV-3 infection

27 Jul 2026 10:59 am
Anthropic rolls out Opus 5 AI model in efficiency upgrade

Open-weight models allow users to download, run and customise the virtual brains of an AI, unlike proprietary models

27 Jul 2026 9:53 am
South Korea's SK Hynix, Samsung Electronics sign $950 billion partnership with U.S. big tech

Samsung Electronics and SK Hynix will pursue memory chip supply partnership with U.S. big tech companies

27 Jul 2026 9:39 am
Nvidia in talks with OpenAI to guarantee $250 billion financing for data centre: Report

OpenAI, which has been in advanced talks for several weeks to lease the site, is among the companies showing the strongest interest in the project, per the report

27 Jul 2026 9:31 am
PRAXIS: a NASA mission to graze planet rings

The mission will consist of a bio-inspired robotic explorer driven by an AI model, and will be capable of directly sampling particles from planetary ring systems something no mission has attempted before

26 Jul 2026 4:23 pm
Girls death in China reveals human cost of unregulated science

The case has prompted debate about first in human gene-editing trials, particularly for rare but serious disorders

26 Jul 2026 3:53 pm
AI toys are gaining ground, but do they help childrens language skills?

Language acquisition, at its core, is a social dance. A caregivers response, its tonal quality, and content adapted to the childs level, controls what and if a child learns. This cannot be outsourced to a machine

25 Jul 2026 4:22 pm
OpenAI vs ANI case: what it means for the future of information

The Delhi High Court order is the first detailed attempt by an Indian court to place AI training within the Copyright Act.

25 Jul 2026 10:39 am
Disabling BitChat in India? | Explained

The notice was issued close to midnight on July 23

24 Jul 2026 6:36 pm
Government orders GitHub to remove Bluetooth-based chat app Bitchat over security concerns: Jack Dorsey

The notice comes after several users participating in the Jantar Mantar protest were observed using Bluetooth-based messaging apps after the government imposed temporary restrictions on internet services

24 Jul 2026 5:05 pm
Google rolls out new selfie video sign-in feature

Google will allow users to set up verification by recording a brief video of themselves performing guided head movements that would capture multiple angles

24 Jul 2026 12:05 pm
U.S. Pentagon awards Oracle nearly $7 billion deal in latest software consolidation push

The agreement spans five years, with a further five-year option, and covers the entire Pentagon, along with the U.S. Coast Guard and the intelligence community

24 Jul 2026 10:00 am
Why did the EU fine Google | Explained

European Union fined Google460 million for search abuses and 430 million forthe Play Store breaches

24 Jul 2026 8:50 am
Googles Sundar Pichai hails amazing quarter during earnings call as investors fret about delayed Gemini 3.5 Pro

Google CEO Sundar Pichai defended the companys frontier models amidst worries about the delayed release of the Gemini 3.5 Pro model that was expected last month

23 Jul 2026 2:58 pm
How magnetic levitation lifts and propels high-speed maglev trains

Maglev trains use powerful magnetic fields to move above the track without wheels, eliminating rolling friction, enabling speeds of over 400 km/hr; however, the technology requires dedicated guideways with precision engineering, making construction and operation expensive

23 Jul 2026 10:40 am
Physical AI is now mainstream, reveals TCS survey

Data integration, legacy modernisation, workforce capability, governance, and clearly defined accountability will determine whether promising pilots become repeatable, enterprise-scale deployments, TCS said in the report.

23 Jul 2026 8:30 am
Science Quiz: Exceptional gases

A quiz on chemistrys dangerous molecules

22 Jul 2026 12:40 pm
Space Exploration Day | How are astronauts trained?

If you want to be in space, youll need training. A lot of it. Heres a look at all the different training from spacewalk to simulation that astronauts undergo to be efficient and valiant when, after much waiting, they finally get to space!

22 Jul 2026 10:19 am
Microsoft to fund Mistral's European AI expansion in multibillion-dollar deal

Mistral, meanwhile, has added its AI models called Medium 3.5 and OCR 4 to Microsofts app builder known as Foundry

22 Jul 2026 9:00 am
Parts of Assam were once under sea: Study

A team from Nagaland University probed a prominent middle-Eocene sedimentary rock formation in Karbi Anglong district to arrive at a conclusion

21 Jul 2026 2:41 pm
What makes the brain the most complicated object in the universe

For the first time, the thoughts and impressions of people unable to communicate with the outside world were translated into continuous natural language, using a combination of AI and brain imaging technology

21 Jul 2026 12:53 pm
Are new neurons born in the adult human brain? Study revives debate

Amid a morass of conflicting studies, new research from researchers at the Karolinska Institutet in Stockholm has provided further evidence for adult neurogenesis using modern sequencing and machine-learning methods, infusing new life into a long-standing debate with important scientific and practical implications

21 Jul 2026 12:48 pm
How groundbreaking new brain atlases capture development in motion

New brain atlases combine several advanced mapping methods to trace how neurons and glia form, migrate, and diversify across time and species, turning static brain charts into a dynamic developmental reference

21 Jul 2026 12:46 pm
Psychedelics are revealing how the brain builds the sense of self

Psychedelics can temporarily loosen the brain patterns that support the feeling of a me, allowing researchers to watch that system reorganise itself in real time

21 Jul 2026 12:45 pm
Scientists compile largest meta-dataset of tree inventory studies from India

InvenTree-meta brings together information from 465 published studies conducted between 1991 and 2023, spanning more than 4,650 hectares of forests across all of Indias biomes

21 Jul 2026 12:44 pm
Meta faces Tennessee trial over allegations Instagram was designed to be addictive

Tennessees trial is the second to test claims in a lawsuit brought by a state against Meta

21 Jul 2026 12:31 pm
Why are five anonymous female users suing Elon Musks xAI? | Explained

After AI chatbot Grok enabled users to create a barrage of sexual deepfakes and morphed photos earlier this year, a proposed class action lawsuit in the U.S. saw five people claiming that their lives have been shattered as a result of child abuse material

15 Jul 2026 2:52 pm
Deadly bird virus PaBV-4 identified for first time in India

The parrot bornavirus 4, circulating among captive birds, has raised fresh concerns for aviculture and conservation efforts involving threatened parrot species

9 Jul 2026 12:00 pm
When might life on the earth end?

Previous studies had tried to answer this question using simplified climate models, finding the biospheres twilight could occur in 100 million to 900 million years

7 Jul 2026 2:44 pm