CURIOSITIES

HEALING OF YOUR BLOOD VESSELS   Hey, ever got a hurt and scared of that red fluid coming out of your body. It is quite fascinating to know that the same hurt or bruise turns into a reddish - brown clot after few hours or sometimes days. Well, that's an interesting mechanism that works out here... Blood clotting or blood coagulation is an extremely important process that works out in our body when our blood vessel is injured. It helps in the prevention of excess flow of blood outside the body and is natural mechanism to heal injuries. As soon as there is a damage in our blood vessels, a mechanism comes into function. Platelets as we know are an important component of blood. Whenever there is an injury, blood clotting factors activates the platelets which arrive at the healing site. These blood clotting factors convert prothrombin to active thrombin which in turn converts fibrinogen, a soluble compound into fibrin, an insoluble compound. This fibrin develops strands over the wound hi...

TYPES OF BLACK HOLES | Whyfascintaions Types of Black Holes  Knowing so much about black holes, now let us learn something about the types of black holes. Till date, scientists have identified majorly 3 kinds of black holes: 1.)Stellar Black Holes  2.) Supermassive Black Holes 3.) Intermediate Black Holes  Stellar Black Holes  Black holes are formed when a star runs out of fuel and collapses. For a small star ( small in relative to other stars, but small stars have mass 3 times that of sun!!) After exhaustion of fuel l, it turns into a white dwarf but when a larger star collapses, it for.s a stellar black hole, which has immense gravity pulling the dust and other bodies towards it and thus growing in size... Supermassive Black Holes These are about million times massive than sun although roughly same in diameter. They are even more powerful and dominant. The following can be formed to the merge of numerous small blacks. They can also be formed due to large gas clouds...

STRUCTURE OF BLACK HOLE  STRUCTURE OF A BLACK HOLE .. Talking more about black holes, one of the most concerned questions is, how does a black hole look like, in scientific terms, what is the structure of a black hole? Black hole isn't an object that is visible, scientists predict the presence of a black hole with special instruments which detect their effect. A black hole majorly consists of 2 regions.. 1.) singularity - the massive gravitational center and 2.) event horizon - in layman's language- the boundary of  a black hole. EVENT HORIZON It is the area or an imaginary sphere where the escape velocity becomes equal to the speed of light. Escape velocity is defined as the minimum velocity required for a body to escape the gravitational pull. As mentioned earlier, the black hole is something where massive amount of mass is concentrated in relatively smaller region resulting in a really strong gravitational pull. So it's the line or the boundary where if any body...

HOW ARE BLACK HOLES FORMED| WHYFASCINATIONS  HOW ARE BLACK HOLES FORMED?? It is the bitter truth of life that each one of us has to die one day, and so do the stars. The black holes are formed as a result of the death of a star.  HOW DO STARS DIE? Well, Sun is a star, we all know, and inside the sun numerous reactions take place. The nuclei of two atoms fuse to form a single atom. Talking specifically, two H atoms fuse to form 1 He atom. And when the fuel, that is the driving force finishes, the star has died. BLACK HOLE FORMATION  When a massive star dies, it collapses resulting in concentration of mass in a point-sized area. The following results in huge DENSITY and A GREATER GRAVITATIONAL FORCE, thus gaining the ability to absorb anything, even light..  The surroundings of the star disintegrate and that's a black hole. Numerous black holes are present in Solar system.  The closest confirmed  black hole  to Earth lies in a triple-star  system ...

WHAT IS A BLACK HOLE?  Black Holes.. Hey, ever thought about the mass of a mountain or even a massive object. Just imagine if this mass resides in a really small thing, maybe as small as an atom.. Well, our nature provides us with the same and that is what is called as a black hole. Black holes are regions where a huge mass resides in a relatively compact space resulting in immense gravity that even Light cannot escape. Imagine a object that can stop light with a speed of 3*10^8 m/s.  And that's possible with a black hole. Well, our basic knowledge tells us that we see objects when either they reflect light or emit light. But black holes, as the name suggests absorbs all the light and reflects none making them invisible. Thanks to our hardworking scientists who invented some special space instruments to detect black holes. This is just a basic information on black holes, but curious people,don't worry, we will again come with something new...  Enough to fascinate you!!

  Why do we dream? Dreams. Do you see dreams? Sometimes they make us happy, some dreams make us afraid and some nervous. But do you know why we dream? What is a dream? Dream is something which includes feelings, pictures, surprises and a lot more. They usually happen in different stages of sleep. Dreams mainly take place in the rapid –eye movement which is also called as REM stage. Sometimes they may be seen at other stages also. More times, people remember the dream when they are awake in the REM phase. Why we dream? Dreams are based on our recent discussions, activities and other matters. What we think before sleeping, brain makes a dream of that. If we think of a competition, we dream about that. So, simply dreams occur because of our thoughts. If we have negative thoughts then we will have a negative dream and if we have a positive thought, we will have a positive dream. Facts 1.     People have idea that everyone dreams between 3-6 times every nigh...