Knowledge for All, without Barriers…
Blood is composed of cells and plasma. The cells include red blood cells, white blood cells and platelets. The red blood cells carry oxygen from the lungs and give blood its red color. The white blood cells fight infections.
The silk is produced in silk glands with the help of the spider’s spinnerets. Spinnerets are special organs that allow the spider to decide what type of thread it needs for
Made from the grains of the oat plant, the dish we know as oatmeal is made from ground oat groats (sometimes called “milled oats”), steel-cut oats or rolled oats.
When a new invention is created, developers often invest thousands — or even millions — of dollars into the product or idea. Once the invention
Stars, like the Sun, fill the universe. The core of a star constantly converts hydrogen, its fuel supply, into helium. This process, called nuclear fusion, makes stars shine so brightly. After billions of years of
In 1821, Louis Braille, a blind Frenchman, created a system that people with visual impairments, such as blindness, could use to read and write. Although
Would you believe January was not always the first month of the year? The ancient Romans used a different calendar system, and their year began
When you go to sleep each night, your mind goes on a sort of sleep roller coaster. As you sleep, your brain passes through different
Each grain of sand consists of a tiny piece of a mineral, rock, coral, or shell. The forces of nature create sand through the erosion
The air-breathing lungs of mammals, including humans, must be dry and empty of fluids to work properly. When we take a breath, tiny air
You may be surprised to learn that chili peppers are native to the Americas and have been a part of the human diet for thousands of years. Archaeologists in
A burp is nothing more than the sound of gas escaping your body. When you drink or eat, you also swallow air. As you continue
The teddy bear is named after U.S. President Theodore “Teddy” Roosevelt. In 1902, President Roosevelt participated in a bear-hunting trip in Mississippi. While hunting, Roosevelt declared the behavior of the other
Each leaf on a tree is like a tiny solar panel, gathering sunlight the tree uses to make food. Sunlight helps turn water and carbon dioxide into oxygen and glucose,
No single person or culture invented the alphabet — it has evolved over the centuries. In order to understand the modern alphabet, we must take
In order to understand banana bruising, let’s take a peek at the banana’s ripening process. Meet ethylene. Ethylene is a hormone found in the peel
It’s true! We call these exotic things carnivorous plants. Although most carnivorous plants eat small insects, larger carnivorous plants in tropical areas have been known
Flamingos are some of the best-dressed birds in the avian world. They weren’t born that way, though! Baby flamingos are actually born with gray feathers.
This is because black absorbs heat faster and better than other colors. At the same time, it emits heat in a faster manner. So that,
Scientists have discovered that the closest human relatives, chimpanzees, cannot speak due to the fact that their analog of the speech gene, inherited from our
If you’ve ever bought a brand-new DVD, video game, or computer software package, you know you have to tear the plastic packaging to open it. Often,
If we define “largest” in terms of length, then the longest snake in the world today is the reticulated python. Although reports of large snakes
Glitter is made up of hundreds — even thousands or tens of thousands! — of tiny pieces of various materials. What types of materials? Some common glitter materials include
Bloodhounds have a very, very good sense of smell. Researchers estimate that their sense of smell is at least 1,000 times stronger than a human’s.
The colors of traffic lights — green, yellow (or amber), and red — serve specific purposes to regulate traffic flow and ensure safety on the
The notion that humans only use a small percentage of their brains is a common myth. In reality, the brain is a highly active organ,
What water does do is affect the way light bounces off of your hair. Objects have the color we see because they reflect certain wavelengths
When honey bees sting, they release pheromones that stir up nearby bees. Often, those other bees join the attack. One stinging bee can turn into hundreds or
Why Swiss cheese has holes was a mystery for many years. Then, in 1912, a U.S. Department of Agriculture chemist named William Mansfield Clark published a manuscript in which he set
Memories are mental records of past events. As such, they consist of recollections of our personal experiences. Memory begins with the senses since that’s how
Science doesn’t yet have a final answer for why moths, flies, and other insects. There are several theories that might explain why certain insects seem
Getting sleepy and eventually falling asleep after reading a few pages is a phenomenon that many, if not most, of us can relate to. So what is it about
Before we get to how erasers work, though, let’s learn a bit about what exactly is on the paper that you’re erasing. Although we call
Thousands, millions, and maybe even billions of years ago, extreme heat and pressure turned pure carbon into colorless diamond crystals 100 miles or more below
That’s right! Your brain is an incredible tool that can hold more information and do more things than any piece of modern technology in the world today.
The story of these stretchy, bouncy, durable bands goes back thousands of years. Experts believe it began in the regions that many today call Mexico and Central America. There,
There are several theories about why we yawn. One theory suggests that we don’t breathe as deeply when we’re bored or tired as we do when we’re excited or exerting energy. When
यह भारत और बांग्लादेश में कुल मिलाकर 2525 किलोमीटर (कि॰मी॰) की दूरी तय करती हुई उत्तराखंड में हिमालय से लेकर बंगाल की खाड़ी के सुन्दरवन
अशोक का जन्म 304 ई.पू. मे पाटलिपुत्र में हुआ था। चक्रवर्ती अशोक सम्राट बिन्दुसार तथा रानी सुभद्रंगी का पुत्र था। बिन्दुसार की मृत्यु के उपरान्त अशोक मौर्य साम्राज्य का शासक बना।
सबसे महत्वपूर्ण तथ्य यह है की इनका जन्मदिन (5 सितम्बर) भारत में शिक्षक दिवस (Teachers’ Day) के रूप में मनाया जाता है। डॉ॰ सर्वपल्ली
सूर्य हमारे सौर मंडल का सबसे बड़ा पिंड है। सूर्य ग्रह नहीं है, यह एक तारा है। सूर्य का औसत व्यास (Diameter) लगभग 13 लाख 90 हज़ार कि.मी. (13,90,000 km) है। सूर्य पृथ्वी से 900
अंतरिक्ष पर्यायवाची : अनंत, अंतरिक्ष, अभ्र, आसमान, गगन, दिव, नभ, पुष्कर, व्योम, अम्बर, आसमान। अरुण (यूरेनस) सूर्य की एक परिक्रमा 84 वर्ष में करता
The human body is one of the most complicated and fascinating living forms on Earth. Here are some interesting features that make it special, which
40 ʏᴇᴀʀs ᴀɢᴏ, ᴇᴠᴇʀʏᴏɴᴇ ᴡᴀɴᴛᴇᴅ ᴛᴏ ʜᴀᴠᴇ ᴄʜɪʟᴅʀᴇɴ. ᴛᴏᴅᴀʏ ᴍᴀɴʏ ᴘᴇᴏᴘʟᴇ ᴀʀᴇ ᴀғʀᴀɪᴅ ᴏғ ʜᴀᴠɪɴɢ ᴄʜɪʟᴅʀᴇɴ. …………………………………… 40 ʏᴇᴀʀs ᴀɢᴏ, ᴄʜɪʟᴅʀᴇɴ ʀᴇsᴘᴇᴄᴛᴇᴅ ᴛʜᴇɪʀ ᴘᴀʀᴇɴᴛs. ɴᴏᴡ
Sharks are solitary predators. Only rarely do they gather in small groups, and even only during the mating season, then immediately parted. Dolphins travel the
MOST INTERESTING UNKNOWN FACTS YOU SHOULD KNOW: 1. Hot water will turn into ice faster than cold water. 2. The Mona Lisa has no eyebrows.
1. Babies have around 100 more bones than adults Babies have about 300 bones at birth, with cartilage between many of them. This extra flexibility
Crazy Cool Facts about the Human Body The nose can detect a trillion smells! One-quarter of your bones are in your feet. Human teeth are
Spectacular Sports Facts In 1962, Wilt Chamberlain scored 100 points in a single NBA basketball game. No one has broken this record (not even Steph
Wild Facts about Animals Many people believe that early mermaid sightings can be attributed to dehydration + manatees. Sloths cannot shiver to stay warm, and so have difficulty
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