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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…
What are animatronics? Put simply, they’re puppets that can move thanks to technology. They’re run by people using remotes or other devices to tell them how to move. Can you think of any examples of animatronics? They’re used in many movies. …
The first electric refrigerator was made in 1913. Before then, people found other ways to store their food. In cold areas, ancient people could freeze their food. They could then store it in ice and snow. Warmer places allowed for …
Did you know not all planets orbit a star? It’s true! Some planets travel through space on their own, floating in whichever direction gravity pulls them. We call these untethered flying objects rogue planets. How many rogue planets are there? No one is quite sure. However, …
You may have heard it called anarchic hand syndrome. It’s a very rare condition in which part of the body—commonly a hand—seems to move with a mind of its own. The movements caused by AHS are different from the tics associated with Tourette’s …
One type of medicine has made an especially big difference in the way we treat illness today. What are we talking about? Antibiotics, of course! It started with the discovery of penicillin in 1928. Since then, people have turned to these drugs to cure all …
Many doctors and experts have worked hard to make a vaccine that would protect against COVID-19. One leader of this effort is Dr. Kizzmekia Corbett of the National Institutes of Health. Faced with the task, she expressed that the pressure was on: “A lot …
It’s a condition in which the blood doesn’t clot the way it should. If you’ve been Wondering with us for a while, you might already understand the importance of blood clots. They help scabs form and carry out other tasks …
Edward Kennedy Ellington. He was born in Washington, DC, on April 29, 1899. He later earned the nickname “Duke” for being well-mannered. Ellington’s talent was obvious from an early age. He began playing piano at age seven and developed a love …
Who was Albert Einstein? Many would call him the father of modern physics. After all, he contributed more to the study than just about any other 20th century scientist. If you knew Einstein as a kid, though, you may not have …
Decades ago, people made puzzles by hand. They used jigsaws to cut each piece out of wood or cardboard. Some specialty puzzle makers still do so today, but it’s far less common. Instead, most puzzles are mass-manufactured. How exactly are modern puzzles …
That tiny hammer is called a gavel. It’s typically made of wood and paired with a base on which it can be hit. Why do judges use gavels? To maintain order in the courtroom, of course! After all, emotions can run high during a trial. If …
Who was Sobekneferu? She was the first woman to become pharaoh of Egypt. You may have also seen her name written as Sebeknefru. Some call her Neferusobek. Many others know her simply as the Crocodile Queen of Egypt. Why is …
Have you ever seen a Venus flytrap? If so, you may already know that its name is rather fitting. It certainly looks like a plant from another world! However, it’s very much a resident of the Earth, just like you …
In fact, the four species of echidna are the only mammals other than the platypus who do so. Female echidnas lay a single egg per year and carry it around in a pouch on their abdomen. About 10 days later, the egg …
It may come as no surprise that many animals have a strong sense of hearing. In fact, several can hear a wider range of frequencies than humans can. Cats, for example, hear noises between 45 and 64,000 hertz (Hz). Humans are limited to sounds between 64 and 23,000 Hz. …
What is a triple double? It’s a term used in basketball statistics. These are used to measure a player’s performance in each game. The main five categories measured are points, rebounds, assists, steals, and blocks. When a player reaches double digits in three of these categories, it’s called a …
A biodome is a self-contained, self-sustaining, human-made environment. One way to think of it is as an ecosystem built by people. Inside , you might find any number of life forms, including plants, animals, fungi, and more. Does that sound interesting to …
What was the helicoprion? For a long time, paleontologists thought it was a shark. Today, they know it’s most closely related to the modern ratfish. The helicoprion swam in the ocean’s depths about 270 million years ago. Around 235 million years ago, they …