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“The Knowledge Library”
Knowledge for All, without Barriers…
An Initiative by: Kausik Chakraborty.
“The Knowledge Library”
Knowledge for All, without Barriers……….
Knowledge for All, without Barriers…
When you light a candle, you’ll notice the flame has a warm yellow glow. But have you ever wondered why it’s always yellow, instead of blue, green, or red? The answer lies in science—and it’s more fascinating than you might …
When you see astronauts floating outside the International Space Station or walking on the Moon, the bulky white gear they wear might look like a heavy uniform. But in reality, a space suit is much more than clothing—it’s a life-support …
Imagine floating hundreds of kilometers above Earth, with nothing but the vast blackness of space around you and our blue planet beneath your feet. This breathtaking experience is called a spacewalk—and it’s one of the most daring and important activities …
All About Animal Migration: Nature’s Great Journeys Every year, millions of animals set out on incredible journeys across land, sea, and sky. From tiny butterflies to mighty whales, these migrations are some of the most fascinating events in the …
Why Do Dolphins Jump Out of the Water? Few sights are as breathtaking as a dolphin soaring gracefully above the waves. Whether it’s a quick splash or a high, spinning leap, these playful jumps never fail to amaze onlookers. But …
Dolphins are often called the “talkers of the sea,” and for good reason. These intelligent marine mammals have an incredible way of exchanging messages with each other. From whistles and clicks to playful leaps, their communication system is one of …
Can Dolphins Live in Freshwater? When most people think of dolphins, the first image that comes to mind is a sleek, playful creature leaping out of the ocean waves. It’s true—dolphins are usually associated with salty seas and vast …
All About Dolphins: Fascinating Facts You Didn’t Know Dolphins are among the most intelligent and fascinating creatures in our oceans. Known for their playful nature, friendly personalities, and extraordinary abilities, they continue to capture human imagination across cultures. But …
Today in History – September 22 | Important Events, Birthdays & Deaths 27 सितम्बर इतिहास के पन्नों में – आज के दिन 1290 – चीन के चिली की खाड़ी में भूकंप से करीब एक लाख लोगों की मौत हो गयी …
Daily Current Affairs, News Headlines 27.09.2025 National Updates The Ministry of Information and Broadcasting is exploring ways to officially recognise digital creators, especially YouTubers with large followings who advocate public causes, MIB Secretary Sanjay Jaju said at the 3rd Digital …
Carbon Nanotubes (CNTs) – Detailed Explanation Definition Carbon Nanotubes are allotropic forms of carbon (like graphite, diamond, graphene) that exist in the shape of long, hollow cylinders made up of carbon atoms arranged in a hexagonal lattice.They are nanostructures with …
Definition of Nanoscale The nanoscale refers to the size range from 1 nanometer (nm) to 100 nanometers (nm). At this scale, materials behave very differently compared to their bulk (larger) form. This is the scale where atoms and molecules interact …
What is Nanotechnology? Nanotechnology is the science and technology of working with materials and devices at the nanometer scale (1 to 100 nanometers). At this size, materials show unique physical, chemical, and biological properties that are very different from their …
What is a Nanometer? A nanometer (nm) is a unit of length in the metric system, equal to one billionth of a meter (10⁻⁹ m). It comes from the prefix “nano”, which means one billionth (10⁻⁹). 1 nm = 0.000000001 …
Today in History – September 22 | Important Events, Birthdays & Deaths 22 सितम्बर इतिहास के पन्नों में – आज के दिन 1789 – अमेरिकी कांग्रेस ने पोस्ट मास्टर जनरल के कार्यालय को अधिकृत किया था। 1792 – फ्रांस गणराज्य …
Today in History – September 21 | Important Events, Birthdays & Deaths 21 सितम्बर इतिहास के पन्नों में – आज के दिन 1621 – सर अलेक्जेंडर स्टरलिंग को नोवा स्कॉशिया उपनिपेशीकरण का अधिकार मिला था। 1677 – नीदरलैंड के जॉन …
Today in History – September 20 | Important Events, Birthdays & Deaths 20 सितम्बर इतिहास के पन्नों में – आज के दिन 1831 – भाप से चलने वाली पहली बस गोर्डन ब्रान्ज़ ने बनाई थी। 1854 – क्रीमियाई युद्ध में …
Today in History – September 19 | Important Events, Birthdays & Deaths 19 सितम्बर इतिहास के पन्नों में – आज के दिन 1755 – ब्रिटेन और रूस के बीच सैन्य संधि हुई थी। 1891 – शेक्सपीयर के नाटक मर्चेंट ऑफ …
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