Why does our temperature go up when we are ill?

A: The increase in core temperature observed during illness is commonly called fever and occurs in response to infection by a pathogen or certain types of physical injury. When a person becomes infected with bacteria, the white blood cells of the immune system recognise the incoming pathogen as foreign and initiate the first stages of … Read more

Parachutes for uncrewed spaceflight of Gaganyaan mission flagged off

Representative purposes. | Photo Credit: DRDO A set of parachutes developed for the first uncrewed mission of India’s Gaganyaan human spaceflight programme was shipped from Agra on Monday (May 5, 2025). The parachutes were developed by the Aerial Delivery Research and Development Establishment (ADRDE), an Agra-based laboratory under the Defence Research and Development Organisation (DRDO). … Read more

AI: is India falling behind?

The Government of India and a clutch of startups have set their sights on creating an indigenous foundational Artificial Intelligence large language model (LLM), along the lines of OpenAI’s ChatGPT, Google’s Gemini, and Meta’s Llama. Foundational AI, or LLMs, are manually trained systems that can churn out responses to queries. Training them requires large amounts … Read more

AI: is India falling behind?

The Government of India and a clutch of startups have set their sights on creating an indigenous foundational Artificial Intelligence large language model (LLM), along the lines of OpenAI’s ChatGPT, Google’s Gemini, and Meta’s Llama. Foundational AI, or LLMs, are manually trained systems that can churn out responses to queries. Training them requires large amounts … Read more

Daily Quiz | On Space Firsts

Daily Quiz | On Space Firsts 1 / 7 | Who was the first woman in space in 1963? 2 / 7 | What first was achieved on November 3, 1957? Answer : The dog Laika, the first living creature, was launched into space by USSR DID YOU KNOW THE ANSWER? YES NO SHOW ANSWER … Read more

Hubble’s 35-year journey is a blueprint to understand the cosmos

From breathtaking snapshots of distant galaxies to game-changing discoveries about the universe’s expansion, the Hubble Space Telescope (HST) has dazzled humankind for 35 years. After launching on April 24, 1990, Hubble overcame early flaws to become one of NASA’s greatest triumphs. Its vivid images and countless scientific breakthroughs have reshaped our understanding of the cosmos, … Read more

Do public-funded R&D units innovate enough? | Explained

Image used for representational purpose. | Photo Credit: S.R. Raghunathan The story so far: The office of the Principal Scientific Adviser to the Government of India, Confederation of Indian Industry (CII) and the Centre for Technology, Innovation, and Economic Research have released a detailed assessment of public-funded research and development in India. In all, 244 … Read more

The mechanics of crowd control: anticipation, preparation, prevention

In his 1997 book ‘Dominance Without Hegemony’, historian Ranajit Guha recounted how Mahatma Gandhi, “perhaps India’s foremost ideologue of self-discipline”, created an “elaborate” set of rules about how people should behave around him as they travelled the country. To Gandhi, Guha wrote, a haphazard crowd was “unmanageable”, “uncontrollable”, “undisciplined”, and ultimately entailed a “mobocracy”. Gandhi … Read more