Number of words: 297 Certainly to this audience I need not say that if you take a rocket and if you want to project it and have it escape the gravitational field of the earth, you must project it with a velocity in excess of a certain limit, and this limit is called the velocity … Read more
Number of words: 256 Geometrical curves, their beauty and their forms, held fascination for the Greeks; they are enshrined in their sculptures and their architecture. The straight line and the circle dominate Euclid; and the perfection of the circle was sacrosanct: it underlies Aristotle’s conception of celestial bodies and it provides the basis for Greek … Read more
Number of words: 173 Before the imperious insistence of the Pope, Michelangelo was forced to give in. And not only did he accept, but after a time unsatisfied with the theme (of the twelve Apostles), he proposed to the Pope that it should be modified. Indeed, we have documentary evidence on the origin of the … Read more
Number of words: 440 For discussion of the motivations which impel one to pursue the goals of science, no example is better than that of Johannes Kepler. Kepler’s uniqueness derives from the position he singly occupies at the great crossroads where science shed its enveloping dogmas and the pathway was prepared for Newton. Kepler, in … Read more
Number of words: 2,201 The theory that SARS-CoV-2 may have originated in a lab was considered a debunked conspiracy theory, but some experts are revisiting it amid calls for a new, more thorough investigation. Paul Thacker explains the dramatic U turn and the role of contemporary science journalism For most of 2020, the notion that SARS-CoV-2 may … Read more
Number of words: 2,272 As COVID-19 vaccination rates pick up around the world, people have reasonably begun to ask: how much longer will this pandemic last? It’s an issue surrounded with uncertainties. But the once-popular idea that enough people will eventually gain immunity to SARS-CoV-2 to block most transmission — a ‘herd-immunity threshold’ — is … Read more
Number of words: 483 Some people feed pigeons bread crumbs or keep them as pets in rooftop coops. Others see the animals as pests, carriers of disease or simply “rats with wings.” But whatever you think about these birds, there’s one fact no one will argue: Pigeons are everywhere. Have you ever wondered how one … Read more
Number of words: 500 Lying flat’ gains traction in China as youngsters defy norms, Beijing not happy Chinese millennials are taking part in the ‘lying flat’ (tangping) movement, defying the country’s long-held prosperity narrative of working hard. There have been protests in the country against the prevalent 996 regime, which means working from 9 am … Read more
Number of words: 1,157 Resident Joe Biden and many lawmakers in Washington are worried these days about computer chips and China’s ambitions with the foundational technology. But a massive machine sold by a Dutch company has emerged as a key lever for policymakers — and illustrates how any country’s hopes of building a completely self-sufficient … Read more
Number of words: 245 Bankers working in sensitive positions, including treasury operations and currency chests, will get a surprise holiday of at least 10 working days in a single spell every year under the modified risk management guidelines of the Reserve Bank of India (RBI). As a prudent operational risk management measure, banks should have a “mandatory … Read more
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