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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…
The idea of infinity is used mainly in the fields of math and physics. It describes a quantity without end. In fact, infinity comes from the Latin word infinitas. That word means “unboundedness.” Infinity has its own symbol: ∞. It’s called the lemniscate, which …
The word “crocodile” comes from the Ancient Greek word for “lizard.” The crocodile is no ordinary lizard, though. In fact, crocodiles have more in common with birds and dinosaurs than today’s reptiles! How big do crocodiles get? That depends. There are sixteen species of …
People who study plants — called “botanists” — don’t consider strawberries to be true berries. True berries, such as cranberries and blueberries, have seeds inside them. If you cut open a strawberry, you will notice right away that there are no seeds inside. …
Leukemia occurs when many abnormal white blood cells—called leukemic blasts—take over the bone marrow and enter the bloodstream. Instead of helping to fight against infection, leukemic blasts multiply and disrupt the body’s production of other important blood cells, including platelets and red blood cells. Leukemia is one of the most common types of childhood …
Many people don’t know that their own stomachs contain powerful acid. You may know all about stomach acid and how it helps us digest food. But it’s not that powerful, is it? You bet it is! Stomach acid, sometimes called gastric acid, is made up …
Instead, submarines have a special device called a periscope. It allows people inside the submarine to see what’s going on above water. Where does the word “periscope” come from? It’s a combination of the Greek words “peri” and “Scopus,” which …
Where is the Bermuda Triangle? It starts in Miami, Florida. Then, it connects to the islands of Bermuda and Puerto Rico. The area is also called “The Devil’s Triangle.” Some also call it “The Hoodoo Sea.” The size of the Bermuda …
When you’re injured, platelets and clotting factors rush to the location of your wound. They help form a blood clot, which is a semisolid clump of blood cells. This will stop the bleeding. Later, that blood clot may turn into a scab. In cases of cuts and scrapes, …
Scientists define combustion (what we call burning) as a reaction between a fuel, such as natural gas, oil, or wood, with an oxidant compound, such as oxygen. Combustion creates both heat and light. We can easily feel the heat from combustion, and we can see the emitted light in the …
Have you ever heard of the Big Bang theory? It’s a scientific explanation of the history of our universe. Based on the name, you might expect that it starts with an explosion. However, that’s not the case. Instead, the Big Bang starts with an expansion. …
If you define “largest” in terms of length, then the longest snake in the world today is the reticulated python. Although reports of large snakes are notorious for exaggerations, the longest pythons easily stretch over 28 feet! Pythons live in parts of Africa, Asia, and …
The word anesthesia comes from the Greek words for “without” and “sensation.” If a potentially painful procedure is in your future, then you may certainly prefer to experience it with anesthesia and, therefore, “without sensation.” Anesthesia is usually given to patients by either a doctor — called an …
If you’ve ever gotten a cut or scrape, you may have had a friend or family member grab a brown plastic bottle of liquid that looks like water. When they poured it over your scrape, it fizzed and stung a little bit. What was it …
To understand where wrinkles come from, we must first know a little bit more about the skin. Did you realize that your skin is an organ? It’s true! In fact, it’s your body’s largest organ. And it’s an important organ. It keeps your insides from falling …
बुढ़ापा पैरों से शुरू होकर ऊपर की ओर बढ़ता है ! अपने पैरों को सक्रिय और मजबूत रखें !! जैसे-जैसे हम ढलते जाते हैं और रोजाना बूढ़े होते जाते हैं, हमें पैरों को हमेशा सक्रिय और मजबूत बनाए रखना …
A vaccine is a biological preparation that provides active acquired immunity to a particular infectious disease. It typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins, …
SPORADIC (ADJECTIVE): (छिटपुट): occasional Synonyms: infrequent, irregular Antonyms: frequent Example Sentence: Sporadic fighting broke out. PSYCHE (NOUN): (मानस): soul Synonyms: spirit, life force Antonyms: body Example Sentence: Her work touches something profound in the human psyche. WHITTLE (VERB): (काटना): erode Synonyms: wear away, eat …
Darwin Day 1502: Vasco-da-Gama embarked on his second voyage to India from Lisbon, Portugal. 1922: Gandhi persuaded the Congress Executive Committee to end the non-cooperation movement. 1928: Gandhi signaled a satyagraha in Bardoli. 1975: India declared itself smallpox-free. 1976: Hadekki (Kerala) …