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When I was a kid, I liked to dig holes in my backyard in Cincinnati (in Ohio). My grandfather joked that if I kept digging, I would end up in China. In fact, if I had been able to dig straight through the planet, I would have come out in the Indian Ocean, about 1,800…
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Ripples of wind pass through the Indian tricolour flutters near Wagah village, Pakistan, July 24, 2018. | Photo Credit: Naveed Ahmed A: The fluttering of flags is a dynamic phenomenon involving three forces. The first one is a constant pulling force due to the rope used to tie the flag to a pole. The second…
Image used for representation only. | Photo Credit: ANI The story so far: The Union Cabinet on Monday, November 25, 2024, approved the ‘One Nation One Subscription’ (ONOS) initiative for centralised access to research articles and journal publication for government higher education institutions and research and development (R&D) laboratories of the central government. The central…
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The blue spot at the centre of the red ring is an isolated neutron star in the Small Magellanic Cloud. Neutron stars are formed after heavy stars go supernova, in the process emitting gamma rays alongside radiation at other energies. | Photo Credit: ESA and NASA The Major Atmospheric Cherenkov Experiment (MACE) telescope is a…
Read More “MACE in Ladakh opens its one-of-a-kind eye to cosmic gamma rays” »
The colorful trompo on a brown background With just a flick of the wrist, a spinning top balances on its tiny tip, seemingly defying gravity. This dance of physics introduces us to the concept of angular momentum, a force that keeps it upright and steady. The physics of spin To understand the magic behind a…
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The story so far: The air quality in the national capital has been struggling to recover from the lows to which it dropped right after Deepavali despite the implementation of GRAP stage IV measures, the active intervention of the Supreme Court, and stop-gap measures by the Delhi government. Many fingers are currently pointed at the…
Read More “The discrepancy between satellite data of farm fires and air pollution | Explained” »
Imagine yourself in a mathematics class. The teacher is working out a problem on the board, and deftly arrives at an answer and starts explaining it to the class. Even while they were at it, you noticed that a mistake had been committed along the way, thereby arriving at an erroneous answer. Would you raise…
Read More “The first recorded observation of the transit of Venus” »
Researchers have discovered that in a foraging ant’s search for food, it will leave pheromone trails connecting its colony to multiple food sources when they are available, successfully creating the first model that explains the phenomenon of trail formation to multiple food sources. Foraging for resources is an essential process for the daily life of…
HPV 16 and HPV 18 are responsible for about 70% of cervical cancers A population-based observational study from 1988 to 2016 in Scotland has found zero cervical cancer cases in women who were fully vaccinated with a HPV vaccine when they were 12-13 years of age. The HPV immunisation programme began in Scotland in 2008….
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For the first time, scientists have directly measured the hearing range of minke whales, discovering that the species can detect high-frequency sounds as high as 90 kilohertz (kHz), according to a new study, demonstrating hearing sensitivity far greater than previously believed. The findings suggest that baleen whales — the planet’s largest mammals — may be even more impacted by…
Read More “Hearing tests show that minke whales can hear high-frequency sounds” »