Category Archives: Astronomy

Sitting still is relative, moving is absolute

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This saying is well-known. Presumably, you are considered staying still  relative to your car while you are driving, whereas, you are moving relative to the earth. Thus, sitting and  moving are defined according to a datum point.

However, I realise that moving is absolute regardless of the datum point you choose. If you use a precise enough ruler to measure the distance between two certain things,  that distance should be changing by a extremely small amount every moment. So nothing sits still in all dimensions!

We all know that time is just a dimension of space. Time doesn’t stand, either do space.

This could be generalized to explain the existence of multiverse.

I think the big thing is related closely to small things in atoms. Moreover, as time could become space and the reverse does hold, it should be possible to store a multiverse in small things like atoms. A multiverse could possibly originates in our small hands. If that is true,  circle is absolute.

P/S: I have been obsessed by the idea that we are just a copy of “real things”, and we are, the whole universe, on the surface of a black hole, just codes for duplicating “real things”. It seem reasonable as astronomers have been long time used the “codes” of stars to tell human’s future. It could be possible that the future has happened and saved in the orders of the stars.

Physics – a natural science

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The name “physics” came from Greek, meaning “nature”. Indeed, physics could explain the whole universe with its complicated string theory. To me, chemistry and biology are actually physics. At the end of the day, substances and all reactions are made of particles and the forces among them.

This is a talk by Professor Michio Kaku which could give anyone inspiration for the science

Bonus for anyone interested in string theory:

It would be amazing to think that the smallest particles are not particles but “dancing” filaments of energy. Different dancing patterns will give us different recipes to make particles, then we have different things in the world. Generally, things are energy and energy are things!

To me, the statement is so true because of two reasons:

– It is actually isomorphic with the formula E=mc2 by Einstein.

– The number of Dancing patterns is unlimited and that’s why scientists keep discovering lots of new particles.

And I have a couple of thinking:

– The Universe (in capital, meaning the universe that we are living in) is made of energy! Then is it possible that our Universe is just a dancing filaments in other universes?

– Dancing filaments make particles, is it true to say if they dont dance, they make “the dark energy”?

– What make them dance? (or easier, what can we do to change the dance patterns, so we will be able to transform particle)

– Do the filaments have anything to do with Higgs Boson?

You might have more questions than me after watching this talk by Bryan Greene

and Introduction of String theory by Michio Kaku:

P/S: non-matter “dark energy” is different to “dark matter”.

These are some assumptions about dark matter:

How we know that the universe is expanding:

Higgs Boson – the God particle

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I find that my memory is not as good as 5 years ago. Indeed, I had once done a little reading on Higgs boson and Big Bang experiment, but when the news on the successful experiment came 2 days ago,  I couldn’t understand it. So let me save some textbook knowledge here:

Firstly, the model of particle physics:

and the idea of different particles is summarized here (in Vietnamese) and here (in English)

Secondly, the big question of physics: Why do some particles have mass and others don’t? What makes the mass?

Higgs field helps us answer the question:

If you don’t like the clip, read this (Vietnamese) or this and this (English) to get the idea of Higgs field. And a super short clip.

Thirdly, is Peter Higgs right? If yes, how can we observe Higgs Boson?

It seems that he has been right as his theory of Higgs boson has been applied successfully in many calculations. However, we have not seen something like that until the recent experiment by CERN at the Large Hadron Collider (LHC). Let’s see how they do it:

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finally we can “see” Higgs-like particles on 04 July 2012.

This is a nice video report by Sky News Australia on the work.

Still a lot of works to do as Mr Heuer stated, but for now we all can say Congratulations!