Showing posts with label atoms. Show all posts
Showing posts with label atoms. Show all posts

Thursday, September 20, 2012

19th century simplified REALITY but 20th century "complexed it up" again ....

photo of actual ATOMS
At the beginning of the 19th century, most people saw Reality as made up of literally millions of different kinds of objects : from all the species and types of animals to all the different kinds of minerals and rocks to all the different types of weather events.

By the end of the 19th century, they all knew that all of Reality was fundamentally simple : made up of no more than about 80 different, elemental, building blocks called atoms of elements.

19th century : reality complex and unstable at macro level, stable and eternal at atomic micro level.


The surface complexity and instability of wood rotting to humus and rocks eroding to clay was merely an illusion - Reality, at the basic level was simple and stable.

These relatively few elements and atoms were permanent and eternal and universal : they couldn't be created or destroyed - merely arranged and re-arranged in an endless variety of patterns to create all the old world that Nature created and all the coming new world that Man's mind could invent.

Chemistry became the new Queen of Science and chemists saw their job as stripping Reality down into 80 (100% pure) basic building blocks and reassembling those blocks in interesting new ways.

Nature's attempts, they said, often failed because her "pure compounds" really ended up as "impure mixtures".

But under Man's command, purity was real, desirably and obtainable.

Purity became the chemists' - and the Age of Modernity's - Holy grail.

This thought became a basic meme of High School and undergraduate education by the 1890s (and is still with us 125 years later).

But ironically, cutting edge science began to feel it simply wasn't true by those same 1890s , a feeling that grew ever stronger among researchers in the basic sciences as the 20th century played itself out.

But their new knowledge failed to make it inside the door of the high school Chem Lab and still hasn't - and the resulting cognitive break between what we are taught and what is true is literally killing our planet.

We still act like we can easily control Reality for fun and profit ; Climate Change suggests we can't.

High School teachers, whether they know it or not - accept it or not - are killing us all.

On Earth, post Peak Oil, we may feel that Matter (all the soil and rock of this solid planet) is abundant and Energy is scarce, but in the total universe, the reverse is true.

Day to day ordinary matter is actually very scarce and most of the Universe seems to consist of ordinary energy, dark energy and dark matter.

Only under a relatively rare set of conditions does some of that energy become the stable atoms of  80 or so stable elements we know of on Earth.


20th century: Reality unstable at micro level, is most stable in appearance, at the macro level.


Underneath the elements ( which turn out to be composites or mixtures not at all elemental : think isotopic mixtures), are hundreds and hundreds of weird building blocks that may only exist under unbelievably extreme conditions and even then only for a trillionth of a second.

Reality, at the fundamental level turns out to be anything but simple and stable.

Even Earth's semingly stable elements are not in fact stable - while some will outlast the expected life time of the Universe , others are quite willing to break up into smaller more stable atoms and elements (think of uranium).

Day to day Iron is ever ready to rust away at the drop of a hat, but as an element, it is very reluctant to break up via natural radioactivity and so is the most stable of all the elements.

It is plunk in the middle of the periodic table in effect : too big to be easily mashed into a bigger element, too small to easily break apart into smaller elements.

So purity is absolute only as a mental construct ---- nothing in the world is 100% pure for very long : even those bars of metal in vacuum in Paris that represent the mass of a kilogram are no longer pure - they have seen some of their atoms spontaneously self destruct into smaller atoms and a bit of loose energy ; ie they now weigh LESS than a kilogram !

Purity and stability fundamentally are blue sky scientific illusions ; all matter and energy is in a state of constant eternal flux - down at the level of the basic building blocks of atoms and elements.

Surprisingly, as ordinary non-scientists, ie for the bulk of us, stability is best found away from basic science of the chemists and found instead in the geologists' lumps of minerals we see everywhere .

True they will eventually become soil and wash into the sea - but not in our's or our great great grandchildren's lifetimes.

At the macro level, we don't see a big piece of a mineral as slowly but steadily changing into something else at the individual atom (micro) level and we can enjoy thinking of it as stable enough for us and our purposes ---- to use as a building material for a 'permanent' monument for example.

Reality, under the Second Law of thermodynamics, turns out to be stable and simple at the macro level but unstable and chaotic at the fundamental building block level - a surprising and total reverse of what the First Law of thermodynamics taught the 19th century chemists .....

Sunday, September 9, 2012

South Mountain BATHOLITH debated by skygods and earthlings

hunka,hunka burnin' lava
One reason why Nova Scotia has such an unique lobster like shape is that its backbone is one immense chunk of highly-erosion-resistant granite, by far the largest chunk on the entire east coast of North America : the famous South Mountain batholith.

A batholith is an giant upwelling of granite-like magma, from deep down below melting its way through the surface rocks.

The South Mountain batholith, which is hundreds of kilometres long is indeed big, but not the biggest in the world - ones on the west coast of North America can be thousands of kilometres long.

Batholiths and thermodynamic laws


Basically batholiths are one enormous rock that erodes about as slow as anything does on earth ; this one in Nova Scotia is about 350 million years old and hardly changed since its birth.

Skygods are People of the First Law (of thermodynamics) and in their understanding of the South Mountain, its surface impression of solidity is in fact just that, an impression.

In fact, they are argue, its solidity is all an illusion. Matter and energy can't be created or destroyed only changed from one form to another ----- and change is easy, even for granite.

Granite can be easily reduced to its constitute atoms and then reduced no further : atoms are the simple, small, easily controllable, harmless "solid" fundamentals of reality : mix and match them and turn granite's atoms into the atoms of silicon oven gloves or concrete or whatever.

Earthlings , as People of the Second Law (of thermodynamics)see the South Mountain totally differently.

They think that its granite is surpassingly solid - one of the most solid objects in the Universe in fact.

But once they divide it into its atoms, they find they are not solid but rather dividable and in fact,  "a waste of space" : tiny busy electrons swirling around the vast distance between them and a tiny heavy nucleus.

But that nucleus isn't solid either : it breaks down into ever smaller sets of Russian dolls and ends up feeling like nothing more than whirling bits of energy.

So mass, it turns out, isn't just convertible into energy : it IS energy , bits of energy whirling about so fast that it gives us mega-sized humans the illusion of weight and solidity.

Energy popping in and out of existence constantly, but always moving slowly,ever slowly, to a totally dispersed state where they will slow down into the Universe's death at near absolute zero temperatures.

(Aka : Entropy).

Skygods: big is dynamic and complex and small is solid, stable and knowable-controllable. Optimism as high as the blue skies themselves.

Earthlings: big is solid and while dynamic is at least a bit knowable-controllable. The small ? mercurial, unknowable, non-solid. Cautious (grounded in what we do know, not what we might know) and skeptical we will ever begin to 'control' reality.

Which side are you on ? Is granite more solid-seeming than atoms or vice versa ........