NCERT launches new Class 5 Maths book with puzzles and real-life activities
While the physical and digital copies of the new books are yet to be made publicly available, listings have appeared on Amazon and NCERT's official website. The council has confirmed that the books will soon be published and accessible to students, teachers, and schools across the country.With Maths Mela, NCERT aims to shift the narrative around mathematics from fear and rigidity to curiosity and discovery—an approach many educators and parents have long advocated for.- Ends
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Time of India
4 hours ago
- Time of India
Active lifestyle at any point in adulthood may extend lifespan: Study
London: Adopting a physically active lifestyle at any stage of adulthood significantly lowers your risk of dying from any cause, especially from cardiovascular disease . A sweeping analysis of 85 studies confirms that those who stay active consistently reduce their mortality risk by 30-40%, while even those who become active later in life enjoy a 20-25% reduction. The study has been published in the British Journal of Sports Medicine. The findings prompt the researchers to conclude that switching to a more active lifestyle at any point in adult life may extend the lifespan, and that it's never too late to start. Currently, it's recommended that adults should aim for 150-300 weekly minutes of moderate intensity physical activity, or 75-150 weekly minutes of vigorous intensity physical activity, or a combination of the two, note the researchers. But while these recommendations were based on the best evidence available, most of it captured measurements of physical activity at only one point in time, which might hide the potential impact of changing patterns during adulthood, they add. The researchers therefore wanted to find out if differing patterns of physical activity, as well as its cumulative impact during adulthood, might be associated with a lower risk of death from all causes, and specifically from cardiovascular disease and cancer. They scoured research databases for relevant studies that assessed physical activity at two or more points in time, and included in their review 85 studies published in English up to April 2024, with sample sizes ranging from 357 to 6,572,984 participants. Fifty nine of the studies looked at long term patterns of physical activity across adulthood; 16 looked at the average benefits of different physical activity levels; and 11 explored the potential impact of cumulative physical activity on risk of death. To overcome the challenges posed by different analytical methods used, the researchers carried out separate analyses for each of them. Pooled data analysis of the study results showed that, overall, a higher level of physical activity was associated with lower risks of all the included outcomes. Consistently active people (32 studies) had around a 30-40% lower risk of dying from any cause, while those who increased their levels of physical activity (21 studies) from below those recommended had a 20-25% lower risk of death from any cause. Specifically, participants who switched from being physically inactive to being active were 22% less likely to die from any cause than those who remained inactive, while those who increased their leisure time physical activity levels were 27% less likely to do so. On the other hand, swapping an active lifestyle for an inactive one wasn't associated with a lower risk of death from any cause. Generally, the associations observed between a high level of physical activity and a lower risk of death were more evident for cardiovascular disease than for cancer. Compared with participants who were consistently inactive over time, those who were consistently active, overall, or only in their leisure time, were around 40% and 25% less likely to die from cardiovascular disease and cancer, respectively. But in general, the evidence for the associations between physical activity patterns and death from a specific cause remained inconclusive, especially for death from cancer. The pooled data suggested that people who were consistently active or who became active had lower risks of death from any cause, and specifically from cardiovascular disease, when meeting the recommended weekly physical activity levels. But being consistently physically active and clocking up more than the recommended maximum weekly amount of moderate to vigorous intensity exercise was associated with only a small additional reduction in risk. Maintaining or increasing physical activity at levels below the recommended weekly amount, however, was associated with appreciable health benefits, indicating that some physical activity is always better than none, say the researchers. The researchers acknowledge some limitations to their findings, including that most of the studies included in the pooled data analyses relied on subjective assessments of physical activity, which may not always have been accurate.
NDTV
11 hours ago
- NDTV
Shubhanshu Shukla's Family "Excited" As Axiom-4 Crew Set To Undock From ISS
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India Today
11 hours ago
- India Today
Japan's internet is so fast it can download all of Netflix in 1 second: Check speed and others details here
Imagine being able to download everything on Netflix in just one second. That might sound futuristic, but you may not have to wait 20–30 years to see it in real life. This massive internet speed limit is exactly what researchers in Japan have managed to achieve. Scientists at Japan's National Institute of Information and Communications Technology (NICT) have set a new world record for internet speed, reaching 1.02 petabits per of us measure internet speed in megabits per second (Mbps). One petabit equals one million gigabits — or a billion megabits. So this new record is roughly 1,020,000,000 Mbps. For comparison, the average internet speed in the United States is around 300 Mbps, while in India it's closer to 64 Mbps. This new speed is millions of times faster and fast enough to download Netflix's entire content library in under a speed on existing infrastructureSo, how did the researchers manage to pull this off? According to NICT, their research team used a special type of optical fibre with 19 cores. It contains 19 tiny channels that can each carry data. Normally, fibre-optic cables have just one core, but these experimental cables multiply the amount of data that can be sent, without increasing the overall size of the cable. In fact, the cable used in the experiment is the same standard size (just 0.125 mm thick) as those used globally sent over thousands of miles Notably, this test was not limited to a short distance either. The researchers transmitted data over 1,808 kilometres (about 1,123 miles), using a setup that looped the signal through 19 different circuits, each 86.1 km long. A total of 180 data streams were transmitted simultaneously, resulting in bandwidth of 1.86 exabits per second per kilometre.'Our goal was to demonstrate that incredibly fast internet speeds can be achieved using infrastructure that already exists,' said possibilitiesNow, if you're wondering what kind of real-world tasks could benefit from this speed — think big. Really big. From downloading the entire English version of Wikipedia (with all revisions) thousands of times per second, to instantly streaming 8K ultra-high-definition video, the possibilities with this massive internet speed are endless. In the future the high-performance cloud computing, AI model training, large-scale remote collaboration, and global data storage systems would all benefit from this internet speed while this technology is still in the research and development stage, the fact that it utilises standard-sized fibre cables makes real-world implementation more feasible in the near future. For now, there's no specific timeline for public rollout, but the record does offer a glimpse into the future of internet connectivity.- Ends
