Facts on Fire

String Theory  To understand the true nature of reality, we looked up at the things which were amazed- Wonderous landscapes in the dust, Zoos of bizarre creatures, complex proteins robots etc. All of them made from the structure of molecules made up of countless even smaller things; atoms. We thought they were the final layer of reality until we smashed them together really hard and discovered things that can't be divided, anyone; Elementary particles: But we had a problem with them. They are so small that we could not look at them. To see something, we need to light an electromagnetic wave. This wave hits the surface of the object and gets reflected from it to the eye and this is not the problem with most of the things. But this particles is very very small so small that the electromagnetic waves we used to see are too big to touch them visible light just passes over them. We can try to solve this by creating Electromagnetic waves of much smaller wavelength, B...

Black Hole Information Paradox Before 14 Sept 2015, There was a question mark on the existence of black holes because before that they only exist in our theories and some researchers believed that there is nothing like the black hole in Universe.  But at 14 Sept 2015, Ligo first detected the gravitational waves and it is proved that the black holes are not imaginary, they exist in the universe. And now we know that black holes exist but we have not fully understood it, because of this we don't know how this universe actually works. If we want to know how our universe actually works then we have to know that black holes works and that's the biggest reason why Physicists gave importance to it.  Before 1974, Black holes are not considered to be paradoxical because then we know that black holes are such places in our universe in which gravitational forces are much stronger than any other region in our universe and even light couldn't escape through it. ...

Hawking's Radiation Black holes: What is Blackhole?, What we know about black holes? How they work?, Is there is any black hole in our Universe. All these questions annoying physicist for the last 5 decades. We all know that Event horizon is Point of no return in black holes. In Actual, Event horizon is a boundary of black hole outside the event horizon an object can pass unless it faces the gravitational pull from the black hole, but if an object crosses the boundary of event horizon then it becomes impossible for an object to escapes from its strong gravitational pull, Even light cannot be able to escape from its strong gravitational pull. Normally, when we are talking about strong gravitational pull actually we're talking about the boundary of the Event horizon. Stephan Hawkings first discovered that light rays which enter event horizon and light rays which are outside the event horizon doesn't approach each other. It means that the area of even...

We humans of planet Earth benefit from a great coincidence. It's a coincidence of time, and of space and of maths. The coincidence is this: the sun is about 400 times wider than the moon and it's also an average of about 400 times farther away from the moon. The apparent size of the object in the sky depends upon how far the object is and how big it is. So these numbers being equal means Sun and the Moon means to be about the same size in the sky and that's where another interesting thing comes in: Sometimes the moon passes directly between the Earth and the sun. It doesn't happen all that often, but when it does, we get magic, We get an Eclipse. An eclipse is a generic term in astronomy for "when one object passes into the shadow of another object, darkening or blocking it. A solar eclipse happens when the Moon blocks the Sun, casting a shadow on the Earth. A lunar eclipse happens when the Earth blocks the Sun, casting a shadow on the Moon. The Moo...

Moon Phases  Besides the Sun, the Moon is the most obvious object in the sky. Bright silvery with tantalizing features on its face, it's been the target of our imagination, poetry, science and even the occasional rocket.  If we pay most the most cursory attention to it, we'll see that it changes everyday; sometimes it's up in the day, sometimes at night , and even its shape is always changing.  What's causes this Behavior?  The moon is basically a giant ball of rock 3500 km across in space. It's surface is pretty dark, with about the same reflectively as a chalkboard or asphalt. However, it looks bright to us because it's sitting in full sunlight; the sun illuminates it, and it reflects that light down to us here on Earth. And because it's a sphere, and orbiting the Earth, the way we see it lit by the Sun changes with time. That's what's causes its phases : Geometry.  The important things to remember through all is; ...

Wormhole A wormhole is a theoretical passage through space-time that could create shortcuts for the long journey across the Universe. Wormholes are predicted by the theory of relativity. For most of the human history we thought space was pretty simple; a big flat stage where the events of the universe unfold even if you take down the set of planets and stars, there's still something left. That empty stage is space and it exists, unchanging and eternal. Einstein's theory of relativity changed that It says space and time make up that stage together, and they aren't the same everywhere. The things on the stage can affect the stage itself, stretching and warping it.  If the old stage like unmoving hardwood, Einstein's stage is more like a waterbed. This kind of elastic space can be bent and maybe even torn and patched together, which could make wormhole possible. In 2d, our universe is like a big flat sheet, bent in just the right way wormhole could...

Dark Matter and Dark Energy  Matter - Anything that occupies space and has some mass is known as Matter. Dark Matter - is a hypothetical form of matter. Our Universe is made up less than 5% of visible matter like stars, planets, galaxy, everything we can see. And the matter we can't see is called dark matter and scientist think 95% of the universe is made up of dark matter and dark energy. Dark Matter is the stuff that makes it possible for the galaxies to exist. when we calculated why the universe is structured the way it is!. It quickly became clear that there's just not enough normal matter. The Gravity of the visible matter is not strong enough to form galaxies and complexes structures. Stars would more likely be scattered all over the place and not form galaxies. So, we know there is something else inside and around them. Something that doesn't reflect or emit, something that dark but besides being able to calculate the existence of dark mat...

White Holes  A white hole is a hypothetical region of spacetime which cannot be entered from the outside, although matter and light can escape from it. In this sense, it is the reverse of a black  hole , which can only be entered from the outside and from which matter and light cannot escape. One of the leading theory suggests that white holes are actually very old black holes and all of the material sucked in overtime explodes out when they transform into a white hole. This means that the material in the black hole might not last forever. When a white hole blows, the material which comes out is not from this universe. Black holes have something called the event horizon and when light or matter enter in the black hole they will not be able to return once they came. When an object passes through a black hole they ended up in the interior of the black hole  It is believed that the object which enters into a black hole cannot return back whereas white...

Warp Drive  Warp Drive - A technique in which an object or spaceship travels faster than the speed of light without consuming much fuel. According to the Theory of Relativity - A body which has mass cannot travel with the speed of light and to travel with the speed of light, requires infinite energy. It seems that this theory applies to those objects which travel within the universe but not on the universe itself.  In other words, we know that the universe is made right after the big bang about 13.7 billion years ago. If we assume that right after the big bang if our universe is expanding with the speed of light then today its diameter should not greater than 28 billion light years but according to researcher our Universe diameter is about approximately 93 billions light years, it simply means that the speed of expansion of our universe is greater than the speed of light, it means that barrier's of relativity is not applied on universe itself.  It m...

Top 10 Scary Astronaut Stories Today, we share real accounts of people who have been to space - the scary things they experience, the unexplained sightings, and the memories that haunted them for years after.  10.  The Knocking - In 2003, Yang lee become the first Chinese person in space. It was a horrific occasion, but it also becomes famous for a creepy occurrence. In 2016, Yang told in an interview that he heard someone knocking on the outside of the spaceship on that trip, he described it as sounding like a wooden hammer hitting on the iron bucket. He tried to peek out of the porthole but he couldn't see anything outside. When he got back to earth, Yang described the sound to expert, he even tried to recreate it for them - but nobody could identify it. In the year since, many people have tried to explain this strange phenomenon. some say that it could have been some space debris but some others say that this is unlikely as space debris is few and far be...

Black Holes might not exist in Universe  Black Hole - A Black hole is a region of Space-Time exhibiting such strong gravitational effects that nothing can escape from the inside of it ( not even particle and electromagnetic radiations like light ). A black hole can be formed by the death of a massive star. When such a star has exhausted the internal thermonuclear fuels in its core at the end of its life, the core becomes unstable and gravitationally collapses inward upon itself, and the star outer layer is blown away. The infinitely small points within a black hole is known as the singularity. Black Holes are infinities wrapped in infinite objects containing an infinitely small point with an infinite density that wraps Space-Time to such a degree even light can't escape through it, so if nothing can escape through Black Hole .. can a Blackhole exist? but the researcher believes they exist but we have still never seen one.  What if the hulking objects that ...