Questions, Answers, Tips, and Ideas on topics of your choice.


QUESTION, ASK, DISCUSS AND BRAINSTORM!
'The ability to perceive or think differently is more important than the knowledge gained.'
(David Bohm)

Those who prefer a picture to ten thousand words might like my other blog — LIGHT COLOUR SHADE.

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Wednesday, 5 May 2010

Quantum Entanglement Questions.
Quantum Weirdness.

'We must be clear that when it comes to atoms, language can be used only as in poetry.' — N. Bohr.

What I most love of quantum mechanics is that it is nondeterministic, which means that it’s generally doesn’t predict the outcome of any measurement with certainty. Instead, it just provides the probabilities of the outcomes, so that ‘measurements of a certain property done on two apparently identical systems can give different answers’ — to put it simply, the Truth is unfathomable. That’s how I’ve always perceived the universe and therefore life: governed by the uncertain definition inherent in its very core.

Quantum entanglement, also called the quantum non-local connection, is a property of a quantum mechanical state of a system of two or more objects in which their quantum states are linked together so that to describe one object you have to take into account its counterpart — even if they’re spatially separated.

Saturday, 24 April 2010

Hawking Radiation and Black Hole Evaporation.

Bekenstein-Hawking radiation questions.

'There is no quantum world. There is only an abstract physical description. It is wrong to think that the task of physics is to find out how nature is. Physics concerns what we can say about nature...'  "The philosophy of Niels Bohr" by Aage Petersen.

How does Hawking Radiation work?



In 1974, Stephen Hawking set forth a theory that due to quantum effects black holes should emit a thermal radiation with a black body spectrum. Actually, he drew on two soviet scientists’ work who claimed that rotating black holes should create and emit particles according to the quantum mechanical uncertainty principle. That means that black holes can lose mass and, if they spew out more matter than they gain, they might shrink, evaporate and eventually vanish.

This analysis is allegedly the first serious shot at a possible theory of quantum gravity, but there’s a catch — the existence of Hawking radiation hasn’t been proved so far. NASA launched a satellite to search for the expected gamma-ray flashes from the evaporating primordial black holes, and CERN’s Large Hadron Collider is bent on creating micro black holes in order to observe their evaporation, or that’s the part they let us in on.

Tuesday, 6 April 2010

Casimir effect, vacuum fluctuations and zero-point energy.

Or what I make of it.

'Any intelligent fool can make things bigger and more complex... It takes a touch of genius - and a lot of courage to move in the opposite direction.' — Albert Einstein.

It turns out a great number of science lovers seek simple explanation of abstruse scientific topics rather than techno-babble and a pile of mind-bending equations. As one great physicist said, if you can’t break a complex scientific question down so that even your granddad understands it, you yourself don’t understand it.

First, to put it simply, classical mechanics deals with macroscopic objects, that is, things visible to the naked eye, while quantum mechanics deals with the wave-particle duality of atoms and molecules. That said, according to quantum field theory (quantum description of a physical field), the Casimir effect is a physical force produced by quantised field.

Tuesday, 16 March 2010

Prophetic and Self-Fulfilling Dreams.
The Interpretation and Meaning of Dreams.

We are such stuff
As dreams are made on, and our little life
Is rounded with a sleep.
W. Shakespeare. The Tempest, (Act 4, Scene 1). 

Hypnos, God of Sleep
Hypnos — God of Sleep

Many people wonder how to interpret their dreams and if they really mean something. Well, dreams do have great significance to me and with good reason. I know from personal experience that there’s a kind of alternate reality we can only tap into when our conscience is turned off and instead our subconscious is unleashed.

Friday, 19 February 2010

Destiny vs Free Will.

'There is no purpose to life, but it’s not an accident.' — Richard Dawkins.


In Thornton Wilder’s THE BRIDGE OF SAN LUIS REY the characters were doomed to meet their deaths in the collapse of the bridge as a logical outcome of their lives and personalities. "Is there a direction and meaning in lives beyond the individual's own will?" was the question posed by the author, which is basically fate vs. free will. As a matter of fact, every time a number of people die or get injured in an accident a mind-boggling question raises its ugly head — did some superior force make it happen accidentally on purpose?

Some people believe there’s a cause for everything; others say it’s just a blind chance. I’m inclined to think that chance is an unperceived necessity.

Wednesday, 3 February 2010

Is Time Travel Possible?
Science or Science Fiction?

'Put your hand on a hot stove for a minute, and it seems like an hour. Sit with a pretty girl for an hour, and it seems like a minute. THAT'S relativity.' — A. Einstein

For most people time travel is a common plot device in science fiction, although I’ve always considered travel to the past a sort of Deus Ex Machina. Conversely, the possibility of time travel to the future is arguably deducible from special and general relativities based on the phenomenon of gravitational and time dilation linked to the speed of the observer.

Thursday, 14 January 2010

Breaking down the Bible.
(Genesis, 1 - 2) Creation of Man

“The light and spirit of the Divinity are the wings of the soul.” — Plato

Tanach
 Tanach
No doubt Bible is a record of mainly myths and legends, some historical events, a bit of moral guidance and words of wisdom, but I wonder how much of its text was added by Pharisees and later Christian priests seeking to manipulate and enslave the uncultured masses, "survived the purging of texts considered to be heretical (either out of stupidity or in order to look after the clergy's mean interests) in the founding years of Christianity as a church", or was simply lost in translation. As an Italian saying goes: traduttore — traditore (a translator — a traitor).