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How many colours are there?

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H o w m a n y c o l o u r s a r e t h e r e ? How many colours can you see in this image? (Answer in the last) Well the main question is, How many colours are there in total? Some say there are 3 colours (red, green and blue). Some say it would be in 100s to 1000s. But, Scientists have determined that in the lab we can see about 1,000 levels of dark-light and about 100 levels each of red-green and yellow-blue. So that's about 10 million colors right there.  Still, the exact number remains unknown. But it is believed that the exact number would at least be greater than 10 million. So, How many colours can a human eye see? The human eye can see around 7-8 millions of colors. But believe it or not, some colors exist in our world that the human eye can’t see. So, a healthy human eye can not see 2-3 million colours that actually exists in our world. Humans don’t typically develop full color vision until they are about half a year or so old. The retina in the back of your eye has mi...
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Which animal can go farthest without drinking water?

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 Which animal can go farthest without drinking water? Hello Everyone!! When you here someone asking about an animal that go farthest without drinking water, you would think that even a small kid would know the answer. But, I would like to ask you the same question and see if you can answer. Can you name the animal that can go farthest without drinking water? Your first answer would be Camel. Camel: Yes, they can survive for weeks without water, but it is not the animal that can live the longest without water. Actually, it maxes out at about 15 days. They need this ability in their desert environments. Giraffe: Giraffes can actually last longer without drinking water than camels! They will go up to 3 weeks without a drink. When they do drink, they’ve been known to down 12 gallons in one sitting. Kangaroo Rat: Believe it or not, this little animal can last longer without drinking water than any other animal. They go their whole lives (for about 3-5 years) without drinking a...
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Are you Left or Right brain dominant?

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Are you Left or Right brain dominant?   Have you ever heard people say that they tend to be more of a right-brain or left-brain thinker? Many people say that left brain thinkers have strong math and logic skills. Whereas those described as right-brain thinkers are considered to have talents more on the creative side of things. Well, it might surprise you, that the idea of " right-brained " and " left-brained " is a  myth. Left-brain, Right-brain Dominance Theory According to the theory of left-brain or right-brain dominance, each side of the brain controls different types of thinking. A person who is "left-brained" is often said to be more logical, analytical, and objective and a person who is "right-brained" is said to be more intuitive, thoughtful, and subjective. Do you know , the left hemisphere of brain controls the muscles on the right side of the body while the right hemisphere controls those on the left. This is why damage to the left si...
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Can our tongue taste more than 4 flavors?

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Can our tongue taste more than 4 flavors? Hey Everyone! Today, I am going to tell you about the 5 most common flavors in food. This is a very different topic. But I hope that you like it. Many people say that ' WE, HUMANS CAN ONLY TASTE 4 FLAVORS ( i.e. sweet, bitter, sour & salty). ' But this is a myth . Well, the 5th flavor that we can taste is 'Umami (meaty, savory taste )' Do you know that every taste—sweet, sour, salty, bitter, and umami—is a message that tells us something about what we put into our mouth, so we can decide whether it should be eaten. Sweetness Sweetness seems to be a marker for sugars, which gives the body fast energy, and carbohydrates, which replenish the energy stores in our body. From a nutrition point of view, both of these functions are extremely important for survival. Sugar gives the energy necessary for the fight or flight response in the presence of danger, and caloric intake prevents you from becoming malnourished, starving, and was...
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Some Fun Facts!

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Some Fun Facts!  Hey Everyone, today i am going to share with you some fun and amazing facts of different things. So here they are: 1. Elephants are the only animal that can't jump . 2. An adult human is made up of 7 octillion atoms . 3. There were actually 4 wise monkeys , not 3 wise monkeys, depicting the principles of See No Evil (Bura Mat Dekho), Hear No Evil (Bura Mat Suno), Speak No Evil (Bura Mat Bolo) and Do No Evil (Bura Mat Karo).    4. Humans are luminous . Yaa, you heard it right. We all are like the sun, but are very, very faint. That is why we are luminous. But our eyes can't see that luminosity because it is very faint . 5. R a i n b ow s appear as full circles when you're in the sky. Then only appear as half circles from the ground as there is no rain below the person viewing it. 6. Bats are the only mammal that can actually fly . 7. Cheese is the most stolen food in the world. 8. Eating peaches reduces acne and dark circles around eyes and wri...
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10 Short Facts about Space

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Some Space Facts The Sun makes up 99.86% of the Solar System’s mass. The light from star takes millions of years to reach the Earth . Therefore, when you look at the stars, you are literally looking back in the time. Till the time you see the star, it is possible that it would have already died. Saturn has the second largest moon in the solar system, Titan . There is a maximum of 2500 stars visible to the naked eye at any one time in the night sky. Scientists have named a galaxy as the " Death Star Galaxy " because it is shooting an energetic blast of energy from its supermassive black hole as its companion galaxy and thereby destroying it. The vivid colors seen in Jupiter's cloud are the result of chemical reaction . Space is not complete a complete vacuum . There are about 3 atoms per cubic metre of space.  The chunks of galaxy are being pulled away into complete darkness in a phenomenon known as ' Dark Flow '. There are more trees on Earth than...
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Journey of the Stars

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  Journey of the Stars Let us see how the journey of each star begins... All the stars are formed in clouds of gas and dust, known as nebulae. Nuclear reactions at the center or in the core of stars provides enough energy to make them shine brightly for many years. This stage is known as the 'main sequence'.  The exact lifetime of a star depends much on its size (on how large it is).   -Very large, massive stars burn their fuel much faster than smaller stars and may last only for a few hundred thousand years.    -Smaller stars, however, will last for several billion years, as they will burn their fuel much more slowly.   Eventually, however, the hydrogen fuel that powers the nuclear reactions within stars will begin to run out, and they will enter the final phases of their lifetime. Over time, they will expand, cool and change colour to become red giants.    The path they follow beyond that depends on the mass of the star. Small stars, like the S...
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Lifecycle of The Sun

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Lifecycle of the Sun Hey Everyone, Do you know how the sun began and when will it end? The Solar System was formed around 4.6 billion years ago from a large cloud of dust and gas, called a nebula. This collapsed under its own gravity, transferring gravitationa l  p otential energy to kinetic energy in its particles. As the nebula collapsed it became denser, and rotated more rapidly. Collisions between particles caused kinetic energy to be transferred as internal energy and thermal energy. The core of the nebula began to form a hot, dense protostar. When the Sun’s core became hot enough and dense enough, nuclear fusion reactions began, giving out energy and radiation. A star like the Sun is at equilibrium - gravity tends to pull it inwards, and radiation pressure from the nuclear reactions tends to expand it outwards. In other words, the gravitational collapse is balanced by the expansion due to fusion energy. The Sun is currently a main sequence star and will remain so for another ...
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Knuckle Cracking

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 Knuckle Cracking Before knowing what happens when we do knuckle cracking, let's see why people do this? Most of the people usually crack their knuckles to get relief from stress or nervousness . Some think that it's cool while others just do it for fun.   But do you know what actually happens when you do this? There can be different reasons for the cracking sound produced. They are: 1. Escaping Gases:   The synovial fluid present in our joints acts as lubricants. This fluids contains many gases such as oxygen, nitrogen and carbon dioxide . When we crack or pop a joint, we stretch the joint capsule. This stretching causes the gas to release rapidly. During this, it releases carbon dioxide bubbles. The cracking sound may be produced due to the movement of synovial fluid back into the gas cavity. It is due to the movement of gases (from synovial fluids) that we have to wait for around 15 mins to crack the same knuckle again. 2. Movement of joints, tendons and ligaments: ...
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What is a Universal Donor & Recipient?

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  Universal Donor and Recipient There are 4 types of blood: Type A                                • Type B Type AB                              • Type O Universal Donor -A universal blood donor is a blood type that can be donated to any type of blood. The rarest blood type, O negative is considered to be a universal donor throughout the world. It can be donated to any person as it has no antigens. No antigens means that antibodies will not attack. Thus, it is compatible with all other blood types.  But now, some experts believe that this isn't true. They believe that O negative might have antibodies that can cause a serious reaction during blood transfusions. What is the rhesus (Rh) factor? The rhesus factor refers to the red blood cell antigen in the body's blood. If you have the antigen, then you are Rh+. If you don't, ...
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My First Blog Post!!!

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Welcome to My Blog! Hey everyone, Welcome to my first blog post. I am Naisha. In this blog, I am going to share you some amazing, unbelievable, incredible and interesting facts that you might not be aware about. I have chosen 'Did You Know' as my topic as it will enlighten people about the facts that are still unknown to many. I hope you all will enjoy the blog and get to know a lot of things. I will try my best to make my blog posts interesting and fun to read. Thank You !
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