Showing posts with label Time. Show all posts
Showing posts with label Time. Show all posts

Friday, January 25, 2013

Nostalgia


Now… I just feel like I am going down and down, feeling so lonely and found no one to care about me.. I just wanna sit alone in the locked room to think what I am and what I pretend to be. Because sometimes it is very important to give time to you analyzing what are the gains and losses in life. This calculation is bringing me madness. How beautiful it could be I wish if we get all things settled with no worries and wounds. But it is just a Utopian thought. Life is nothing but a bunch of harsh realities.

I understand this but still I am not able to kick out a gloomy hopeless feeling that has made a permanent place in me like something sucking my blood and making me weak day by day. A fictional scene reminds me feeling like I can see the light at the end of tunnel and but I am powerless to reach the end. Light is going far and far gradually. Time seems to be stuck and everything is crumbling down. Now it is the time to think that had I ever expected all about this, perhaps not but still everything is going on. Time cannot wait to come along. A great headache in the back of my head slowly creating a dire catastrophe and feels like nothing can aid this infection.

Reminding this again filling me up with Nostalgia, but it’s hard to dwell in the past anymore. All those memories have become grief but I am still struggling to save me from myself. I feel like I am sinking in deep in the tepid water. Everything is passing by with such swiftness with erratic clock that I am much confused that what to do and what should I not. I know somehow I’ll be okay but thoughts remain linger in the past.

Tuesday, November 13, 2012

Inscrutability Of Black Holes

Hey guys, this is Umar with my new blog post about ‘Black Holes’. There are some mysteries in this world to think upon. Some are resolved and some are under observations and some are still irresolvable and those who are irresolvable is due to because I believe human mind is in a bound state or what I consider is our brain can only think in a limited state of affairs. We can’t imagine beyond this blue sky because we don’t have the capability to do so. “Black Holes” are also one of those mysteries. So actually, what science says about it, it is a place where gravity is much powerful even light cannot escape through it. It crumbles the matter into small little pieces. Such things happen when a star dies after Supernova stipulation. Black holes are invisible. We cannot see them because they sop up the light as well. Scientists use some special sort of space telescopes to figure out where the black holes are and how they act in a different way from other things in space. Scientists imagine that these black holes are found nearly in any size even as petite as an atom or as huge as gigantic Sun.


Another category of black hole is called ‘Stellar’. Its mass can be up to 20 times more than our Sun. Those black holes which are found largest by our scientists are called ‘Super Massive Black holes’. These super massive black holes have masses that are more than 1 million Suns pooled together. Scientist believes that there is a super massive black hole in centre of every galaxy including our ‘Milky way’. The super massive black hole at the centre of ‘Milky Way’ galaxy is called ‘Sagittarius A’. It has a mass equal to about 4 million suns and would fit inside a very large ball that could hold a few million earths.


NASA is using satellites and telescopes that are traveling in space to learn more about black holes. These spacecraft help scientists answer questions about the universe. All common sense of physics like Newton's laws are simply thrown out of the window because Black holes completely distort time and space. As scientists get closer and closer to understanding the physics behind the Black hole, many equations are starting to not make sense anymore because the physics of Black holes are simply impossible to calculate perfectly. Some scientists believe it’s possible that black holes are ‘Worm Holes’ in Space: doorways to other points in the universe, or even other universes. But if you think about it, even if you made it in alive, it’s not clear how you’d escape the door on the other side, since this would be a Black Hole too.

Thursday, November 1, 2012

Emanating Time

Time, this word can sound to you very frequent but actually it is not. Maybe no one ever has tried to think about it or maybe that’s what i think. Time is keep passing and keeps on but where does it go? What is it? According to science time is a 4th dimension where some events or things are ordered from past to present and the interval in b/w such events occur is called ‘time’. So actually here i am talking about space and time not the physical one which can be measured through devices.  According to Einstein’s ’theory of relativity’ rules of physics are always equal to the observer! Einstein’s famous equation ‘E= MC ^2’ has always been very interesting to me because it sounds cool to me and kind of interesting. It states something like mass of body is equivalent to its own energy where ‘e’ stands for energy, ‘m’ for mass and ‘c’ is used for speed of light. Alright now let’s talk about ‘time dilation’. In the theory of relativity time dilation is the disparity b/w two actions either moving towards each other or situated from gravitation masses. An accurate at rest with respect to one observer maybe measured to tick at the different rate when compared to second observer’s own equally accurate clocks. In 1905, Einstein explained that this was simply the way that light behaved and that it only seemed strange because our common sense notions of how relative speeds were supposed to add up were only true for very slow moving objects (as compared to the speed of light). So the speed of light is unaffected by the speed of its source. Let's see what falls out of this...imagine having two horizontal mirrors facing each other and that one mirror is spaced above the other by the distance d. Also imagine that there is a pulse of light that bounces vertically between the two mirrors as shown in the left part of the drawing below. The time it takes for the pulse of light to do a round trip (from the top mirror to the bottom mirror and back to the top) is twice the distance d divided by the speed of light. This device would actually make a great clock since the pulse can be relied on to always travel at the same speed while doing its round trips and thus always counting out consistent time intervals.