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On zoos and magnets: the physics behind sounds

The Allen Forest Zoo in Kanpur is one of India’s largest zoological parks. Located in the middle of the city, it’s a vast expanse of fresh air, tall trees, and animals and birds of all shapes and sizes, and these early winter months are the best time to soak in the filtered sun when you...

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How can India benefit from neurotechnology? | Explained

The story so far: The brain remains humanity’s final frontier. In the decades ahead, neurotechnology will stretch the boundaries of what it means to understand, and even shape, the functioning of the human brain.  What is neurotechnology? Neurotechnology is the use of mechanical tools to talk directly to the brain. It includes systems that can...

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How new DGCA rules put human limits at the centre of air safety

The recent disruptions in India’s aviation sector, in particular IndiGo’s wave of flight cancellations, have placed the spotlight firmly on the new fatigue and rest norms developed by the Directorate General of Civil Aviation (DGCA). The public frustration is understandable. The cancellations appear to have stemmed from IndiGo’s scheduling gaps and inadequate crew planning rather...

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India needs a diversified portfolio of future-ready power system technologies, say experts

Energy leaders and policymakers have called for creating a diversified portfolio of future-ready power system technologies, including advanced transmission networks, flexible generation resources, and modern distribution systems to ensure reliability, resilience, and security of supply, with India steadily moving to achieve a target of 500 GW non-fossil capacity. At the conclusion of the Global Energy...

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What are cosmic filaments?

Cosmic or galaxy filaments are the largest ‘threads’ in the universe’s cosmic web. A single cosmic filament is a structure spanning hundreds of millions of lightyears, formed as a result of gravity pulling in gas, dark matter, and galaxies into long, thin strands that link giant clusters of galaxies. Filaments also surround large, empty regions...

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Science quiz: Tools of writing

Science quiz: Tools of writing Visual: Name this insect. The natural dye carmine is derived from an acid it secretes to protect itself. START THE QUIZ 1 / 6 | Name this insect. The natural dye carmine is derived from an acid it secretes to protect itself.

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Why do faucets drip even when you close them tight?

Why is the leaky faucet – that most irksome domestic malaise – so universal? A new scientific breakthrough seems to have cracked the physics of this incessant drip-drip. A new paper published in Physical Review Lettershas explained how a water jet breaks up into unstoppable droplets. Researchers from the University of Amsterdam found that the...

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Low-pH cements could let microbes seal cracks in deep nuclear vaults

Nuclear activities worldwide generate around 200,000 m3 of radioactive waste every year. Of this about 10,000 m3, less than 5% by volume but containing most of the radioactivity, needs deep, long-term geological storage in the form of geological disposal facilities (GDFs). These caverns purpose-built hundreds of metres underground are packed with waste containers, cement backfill,...

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Malaria parasites corkscrew their way deeper through skin

Helical paths are everywhere in the microscopic realm. Many bacteria and parasites don’t simply swim or glide in straight lines. In three dimensions, they trace corkscrew-like tracks through their surroundings. Malaria parasites, for example, glide through soft 3D gels and, in the skin of a bitten host, on paths that look like stretched springs. For...

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