syedfaisal

October 24, 2010

Searching for our origin.The journey must go on!

Right from the early days of humanity , curiosity has been a key element in the development of mankind. Either this curiosity is induced in it or it developed on its own is also a question of debate like the existence of mankind itself. Probably the most appealing question for human curiosity is the creation of this universe and what brought us to the point of existence.

If we see the endeavors by humanity, from the invention of wheel and use of fire to landing on moon and aiming to discover the farthest places of the universe , we see the purpose of life as exploring things to satisfy the hunger for knowledge and to discover the unknown.

More on : http://infocrats.org/mag/2010/10/sciencetechnology/searching-for-our-origin-journey-must-go-on/

March 14, 2010

First Time Exhibition of Einstein’s Original Manuscript on Relativity

Filed under: physics — Tags: , , , , , , , , , , — syedfaisal @ 3:18 am

Jerusalem- The masterpiece of a true genius in the history of Physics and mankind as a whole will be on display at Israeli Academy of Sciences. The first public exhibit of the complete, original manuscript, The Foundation of General Relativity started on March 7 2010 and will continue till 25th of March 2010.

The research is considered as the founding work of modern age in the study of space, time and their relation in our universe and its existence. The pages were written in 1916 at Einstein’s Home in Berlin. Later Einstein donated them to Hebrew University Jerusalem in 1925 during its inauguration.

First Time Exhibition of Einstein’s Original Manuscript on Relativity.

March 2, 2010

Astronomically Large Lenses Measure the Age and Size of the Universe

Filed under: exploration, physics — Tags: , , , , , , , , , , , , — syedfaisal @ 4:45 pm

Menlo Park, Calif. -Using entire galaxies as lenses to look at other galaxies, researchers have a newly precise way to measure the size and age of the uni…

via Astronomically Large Lenses Measure the Age and Size of the Universe.

February 21, 2010

When molecules leave tire tracks:LMU

Here’s some interesting work going on.

If we some how get hold of the molecular patterns then it can also lead to some cutting edge developments in micro level gadgets. I think we are getting closer to a complete nano-era with making current electronics obsolete or making it a legacy.

When molecules leave tire

tracks:LMU

A new approach to optimizing molecular self-organization

Munich-Some classes of molecules are capable of arranging themselves in specific patterns on surfaces. This ability to self-organize is crucial for many technological applications, which are dependend on the assembly of ordered structures on surfaces. However, it has so far been virtually impossible to predict or control the result of such processes. Now a group of researchers led by Dr. Bianca Hermann, a physicist from the Center for Nanoscience (CeNS) at LMU Munich, reports a significant breakthrough: By combining statistical physics and detailed simulations with images obtained by scanning tunnelling microscopy (STM), the team has been able to formulate a simple model that can predict the patterns observed.

Read Complete : http://infocrats.org/mag/2010/02/sciencetechnology/when-molecules-leave-tire-tracks-lmu/

December 17, 2009

TIME

If I say, “I know something that has already happened in the future.” then you may think I am wrong but many philosophers and physicists believe the possibility of such statement being true.

Present, past and future are relative terminologies used with the events occurring in a particular time. Then question arises what is time? This is one of the burning questions with many contradictory answers.

“A successful unification of quantum theory and relativity would necessarily be a theory of the universe as a whole. It would tell us, as Aristotle and Newton did before, what space and time are, what the cosmos is, what things are made of, and what kind of laws those things obey. Such a theory will bring about a radical shift – a revolution – in our und2erstanding of what nature is. It must also have wide repercussions, and will likely bring about, or contribute to, a shift in our understanding of ourselves and our relationship to the rest of the universe” (Lee Smolin)

Physicists define time as what the clock reads. But this is not simple as it looks, this statement it self opens another series of confusing questions like what is the starting point of time? Does time has a start? Is time finite? Is time always real?

Many of the scientists consider time has roots leading to the Big Bang. But on the other hand another argument waits what was Big Bang and also whether there was any Big Bang ?
Time is also considered to be relative with respect to space that’s why we use the term space time coordinate. This can be understood by a simple example:

If I say a point was on x=0, y=0 and z=0 position at t=0 time and then moved to x=1,y=2 and z=2 at t=1 time means in 1 unit of time the point moved 3 position units (using difference formula).

Another question arises is the time same or the clock same for every observer? Einstein’s special theory of relativity did away with the idea that events can be simultaneous if they are in different locations. The difference in time between two events depends on their difference in distance and how fast the observer is moving.

Time is considered by some as linear such as Newton and Bacon who considered time as one way with no coming back but in the twentieth century, Gödel and others discovered solutions to the equations of Einstein’s general theory of relativity that allowed closed loops of proper time. These causal loops or closed curves in space-time allow you to go forward continuously in time until you arrive back into your past. Which means we can go to our past meet our childhood self. On the other hand time dilation concept allows you to see the future.

There are other terminologies we use which are related to time such as duration, occurrence of events, instants. Events occur in a particular duration of time. Time is also defined as the collection of instants and instants are said to be the boundaries of durations. Durations are considered to be an ordered set of instants means instants are not part of duration but a member of duration.

Now at the end of my article I quote Albert Einstein who once said, “The development during the present century is characterized by two theoretical systems essentially independent of each other: the theory of relativity and the quantum theory. The two systems do not directly contradict each other; but they seem little adapted to fusion into one unified theory. For the time being we have to admit that we do not possess any general theoretical basis for physics which can be regarded as its logical foundation.If it is true that the axiomatic basis of theoretical physics cannot be extracted from experience but must be freely invented, can we ever hope to find the right way? I answer without hesitation that there is, in my opinion, a right way, and that we are capable of finding it. I hold it true that pure thought can grasp reality, as the ancients dreamed.”

I hope we will be able to find the right way.

See Also:https://syedfaisal.wordpress.com/2007/10/12/my-articles-and-tutorials-for-ieee-nuces-karachi-e-newsletter-on-different-topics-2/

(This is something I wrote in University days some of you may find it a real basic intro of the topic)

December 31, 2007

Mysterious Cosmic Powerhouses Explored.

Filed under: exploration, physics — Tags: , , , , — syedfaisal @ 11:56 am

By working in synergy with a ground-based telescope array, the joint Japanese Aerospace Exploration Agency (JAXA)/NASA Suzaku X-ray observatory is shedding new light on some of the most energetic objects in our galaxy, but objects that remain shrouded in mystery.

MysteriousCosmicPH

These cosmic powerhouses pour out vast amounts of energy, and they accelerate particles to almost the speed of light. But very little is known about these sources because they were discovered only recently. “Understanding these objects is one of the most intriguing problems in astrophysics,” says Takayasu Anada of the Institute for Space and Astronautical Science in Kanagawa, Japan. Anada is lead author of a paper presented last week at a Suzaku science conference in San Diego, Calif.

These mysterious objects have been discovered in just the last few years by an array of four European-built telescopes named the High Energy Stereoscopic System (H.E.S.S.), located in the African nation of Namibia. H.E.S.S. indirectly detects very-high-energy gamma rays from outer space. These gamma rays are the highest-energy form of light ever detected from beyond Earth, so H.E.S.S. and other similar arrays have opened up a new branch of astronomy.

The gamma rays themselves are absorbed by gases high up in Earth’s atmosphere. But as the gamma rays interact with air molecules, they produce subatomic particles that radiate a blue-colored light known as Cherenkov radiation. H.E.S.S. detects this blue light, whose intensity and direction reveals the energy and position of the gamma-ray source.

Full Story:
http://www.sciencedaily.com/releases/2007/12/071220102247.htm

December 10, 2007

Words of Wisdom…….

Filed under: thoughts — Tags: , , , , , , , , — syedfaisal @ 12:51 pm

“Ethical axioms are found and tested not very differently from the axioms of science. Truth is what stands the test of experience.(Albert Einstein)

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