Monday, August 27, 2012

astro pictures for the day




image credit NASA/Mars Curiosity Rover

You get the feeling this Curiosity Mars Rover will give us lots to be excited about till the Pluto probe gets to Pluto!  Shoot, the spaceprobe around Vesta currently will probably get to Ceres before the Pluto encounter.  That's plenty of excitement.

---------------------------------crazy science/technology excitement extra for the day

http://www.rdmag.com/News/2012/08/Engineering-Chemistry-Manufacturing-Self-assembling-microscopic-reagents-pioneer-pourable-electronics/

If these people accomplish this, it will be just as affective imo as Feynman/Drexler's nanomanufacturing system.  Couple this with the chemical brain, and one can make almost anything!



Saturday, August 25, 2012

First man to set foot on the moon passes away



http://en.wikipedia.org/wiki/Neil_Armstrong

As the Wiki shows, Neil flew the X1b(as oppossed to the bell x-1 of Chuck Yeager, and the x-15 pictured above, then the Gemini and the Apollo 11 first human moon landing. The wiki has an embedded video of the first human step on the moon. 

The Apollo 11 landing was easily the most boring space mission after Neil stepped onto the moon. He also made the famous quote, "that's one small step for man, one giant leap for mankind."



I think that Neil died knowing that SpaceX has really gotten things going and most likely will open up the space frontier.

- It took the whole Saturn V rocket to get three men to the moon; it took half the lunar landing module to launch back up to lunar orbit.  Yes, the service module was needed to rocket back to the Earth; but, there is a striking difference in scale!  I mean, once a human presence is established in space, it's relatively easy to get around after that!  There's a wealth of materials and energy to tap that is easy to get to and use once in space.  Our problem is getting established out in space.

-------------------------just some of the crazy science/technology reported around the time of Neil Armstrong's passing away

http://www.spacedaily.com/reports/Spacetime_A_Smoother_Brew_Than_We_Knew_999.html

This may not stop those who want quantum loop quantum/gravity, but it's going to make them think a lot harder!  Quantum loop gravity is a challenger to the String theory explanation of quantum gravity.

http://www.nature.com/nnano/journal/vaop/ncurrent/full/nnano.2012.142.html

Nanotechnologists(dna nanotechnologists?) are excited about this; maybe they can speed up analyses of dna-nanotechnologies.  They've sped up dna-nanomanufacturing substantially, but the analyses was still hard.

Friday, August 24, 2012

youtube for the day/ panning inside and out of the Large Magellanic cloud's tarantula star factory nebula


I'll use this to point out something exciting nanotechnologists over the last couple of days,

http://www.mccormick.northwestern.edu/news/articles/2012/08/northwestern-scientists-create-chemical-brain.html

Chemists have created a network database of all the chemical knowledge about organic chemistry right now; they can create any number of algorithms to solve whatever problems using all the known chemistry rules humanity has dug up over the last two hundred and fifty years!  That alone is a great accomplishment.  Nanotechnologists have been linking and posting about this as an automated engineering technology to probably make nano-mechanical parts.

Thursday, August 23, 2012

youtube for the day/ Planet Earth


About the only reason I want to show this video series is because it's the last pretty good science video I know about in the whole world.  That alone says something about the current human condition.  I figured I'd show it while I'm putting up all these other videos!

I suppose I could make some comment about this knowledge about Planet Earth.  I don't know who said it first, but it's been said that one of the most significant outcomes of the Apollo program and the space programs since the late 1950s starting with the Russians Sputnik is that of seeing our Earth directly for the first time. It's had some affect but perhaps not as much some would like!  The Hubble Space Telescope seems to me to have had more affect on Humanity than the space programs of various countries.

This Planet Earth video series also presents the scientific spirit; it shows some of the first accurate knowledge about the Planet Earth in human history.  Before a hundred years ago or so, nobody knew how old the Earth actually was.  Much can be said for the rest of human knowledge; for the first time, we have some answers to quite a bit of everything we see. 

------------------------------and I've managed to find some more crazy science/tech for the day!


I've heard of this as I've heard of much else;  i've always felt like I'm getting bread crumbs; but, I've also been satisfied with this bits here and there.  I figure, when it gets here, we'll all know.  But this blew me away!  It takes a little while to get into it, but this is an update that is hugh!  And, this talk was given back in march!  He seems to be hinting pretty well in my opinion that he can bootstrap to Feynman/Drexlerian nanomanufacturing.

Wednesday, August 22, 2012

thought for the day/ Mechanical Universe on thermodynamics


  When Physicists worked Newtonian mechanics, they didn't think they had to deal with temperature when working out force, energy, momentum vectors of masses.  Yet, when they wanted to keep the conservation of energy in the 1800s, they had to learn  and combine thermodynamics.

Today and the last so many decades, Chaos theorists wanted to say that mathematics role in science has been disproven.  They wanted to say that the particle physicists obsession with analyses and breaking things down to ever smaller levels of reality is not the way to go.  Well, this is true in some sense, but the chaos theorists wanted to show quantum chaos.  But, they've come to see that thermodynamics doesn't exist at the quantum level(yes, the physicists combine thermodynamics in the description of the big bang, but they're talking about the thermodynamcis of particles at a macroscopic level and not what happens when an electron absorbs a photon).  I bring this up because of my ideas(and Jacob Bronowski's) about certain ideas work in a network of ideas when nature is dammed up in certain ways.  When dammed up in other ways, other ideas take hold.  There is quantum chaos, but it's different from the chaos theory at our scale.

In this macro world with thermodynamics, some phenomenon arise - things like entropy.


and


are both related.

As the second video of this three says, thermodynamics suggesed a solution to the puzzle of time; but, Einstein's relativity theories and quantum mechanics absence of time suggests the problem of time is still a problem.  My concern is actually what thermodynamics entropy means for life.

While most biologists were concerned with molecular biology and genetics at various times . . . not to mention bacteriology, and zoology, there was a few that observed that if the second law is true(which had been established back in the 1800s; it was one of the major accomplishments of the 1800 science), then how come we have Earth brimming with life?  Life seems to be a counter example to the second law of thermodynamics.  Life certainly seems like a water wheel driving another water wheel to make water flow uphill instead of downhill.  As the second video shows, the efficiency gets better with the greater difference between the heat and cold loads.  How does life do it?  I'd suggest and so do many chaos theorists that chaos is at work in living beings.

A big part of the problem of human machines is they generally work as closed systems.  And really, this is the effort, and this is what thermodynamics disproves; that a closed system cannot run forever; energy is produced out of thin air.  But, in an open system, open to the flow of energy and matter, a given structure can be maintained and kept moving.  Kind of like keeping a pencil on its tip, life keeps patterns going by means of feedback loops.  There's two types of feedback loops - positive and negative.  Positive feedback is like sending the output back into the loop that generated that output signal.  This generaly results in an exponential growth and a blown up speaker.  Negative feedback loops are like a thermometer that one can set at a given temperature, and the electronic circuit either turns on or off depending on whether the temperature is higher than a given temperature or lower.  Notice, mammallian life generaly has an ability to keep the body at a certain livable temperature.

In chaos theory, unstable states are held stable by one or more negative feedback loops.  Chaos theory can keep heat engines at greater efficiencies. 

I and many chaos have this idea in the back of our heads that chaos in the brain is what allows us our free will thought, our creativity and the creativity of life.  Our flexibility that you don't see in general human industrial machines.

I've probably taken on more than I can chew at one time; but, I hope I've made the idea of chaos theory solving the second law of thermodynamics puzzle to how life prospers on earth . . . plausible.

I'd like to end by pointing out that chaos theory has been developed technologicaly.  They can use chaos, or they can go from a chaotic state to any number of the systems possible stable behaviors in any medium - chemical, mechanical, lasers, and electronic circuits.  I've seen it used in nuclear fusion experiments, and for the electric circuits in today's electron microscopes utilising the latest inverse refractive optics. Electron microscopes have always been the twentieth centuries underrated technology. 

Also, chaos theory does not mean the end of the mathematical description of nature.  Chaos theory is as much an abstraction as the number two.  A strange attractor, whether in chemical, mechanical, electronic systems, are abstractions also.

Tuesday, August 21, 2012

thought for the day/Mechanical Universe . . . Einstein's theories of Relativity

 
 
 
 

-I'd like to first comment about why there's no astronomy picture for the day.  I'm not sure what pictures I've got up.  I know I've got some repeats.  Unless there's some really new picture, I'm pretty much done right now, unfortunately.

The Mechanical Universe's account of Einstein's theories only covers his Special theory of Relavity.  In both cases, Special and General, mathematicians had a big role.  One could say that Einstein got the credit more because he derived the work of the mathematicians from axioms.  The Mechanical Universe episodes show most of this, except they don't note that it was a Minkowski who thought of spacetime unified.  Then, much later around 1910 to 1915, Einstein showed that mass bends spacetime. The videos explain the rest well enough.  In special relativity, speed is relative to the observer; in General Relativity, inertia and gravity are relative to the observer. 

For Physicists, the Michelson-Morley experiment was like dark energy today - a completely unexpected result.  Physicists thought that light being waves implied an aether.  The fact that they did follows my and Jacob Bronowski's points about defining a part of the universe generates 'infered units' as Jacob Bronowski calls them(see my third to first post about the nature and origin of mathematical knowledge).  Initially, one could argue that the Michelson-Morley experiments presents problems for Jacob Bronowski's theory of knowledge(and mine); but, the truth is that the Physicists failed to question assumptions.  And in mathematics, the reason why they do axiomatics and deductive proof of everything is  . . . at least one reason . . . is to question assumptions. 

For mathematicians, the relativity phenomenon destroyed their religion of group theory - at least for the most part.  Mathematicians, and perhaps Felix Klein specificaly, had started thinking group theory can unify all mathematics(geometry and algebra).  From late 1700s to early 1800s, mathematicians had come up with non-euclidean geometries.  Felix Klein had shown that group theory can describe and unify all these non-euclidean geometries. Riemanian geometry almost certainly took center stage by Einstein's time; well, that's not stricktly true.  Mathematicians had made connections between complex analyses, algebraic geometry, and Riemanian geometry long before.  But, that's another story.  Well, mathematicians had actualy thought of curved spacetime(both Riemann and I'm forgetting the name of another guy; i think he combined complex numbers with vectors . . . sorry, I can't remember his name). 

Getting back to the physicists, they were later to make the vacuum have properties kindof aether like with Paul Dirac's combining of special relativity and quantum mechanics - in his quantum electrodynamics. And of course, this leads to the effort to make a unified quantum theory of gravity.

Monday, August 20, 2012

astro picture for the day


Image Credit & Copyright: Bret Dahl

--------------------------------Mechanical Universe extra!


I've tried to straighten out the Mechanical Universe's presentation, but clearly I wasn't able to.  I've pretty much covered the quantum mechanics side of things.  I'm planning on covering the industrialism/thermodynamics which is kind of related to atoms; but, it's also somewhat related to the particle physics/cosmology side of things(the three quantum forces are generally thought to unite at very high temperatures; temperatures that mankind cannot duplicate; gravity is hoped to unite at temperatures that makes that unification energy seem kind of quaint).  But, I'm going to cover the Einstein Relativity theories second, and then backtrack to the thermodynamics later.

----------------------------crazy science/technology for the day

http://www.technologyreview.com/view/428929/first-atomtronic-radio-broadcasts-matter-waves/

Nobody is quite sure where this will lead science or technology wise.