Hello World!

June 7th, 2010

An appropriate salutation for a coder’s first blog entry, as causing a computer to output the greeting "Hello world" has time and time again been the objective of a programmers first program. The users don’t know, …but the coders understand. Click here for more…


Attention blog spammers!
Every comment is reviewed and only comments actually relating to a post have any chance of being approved. Bottom line… if you are just here to link to something of yours, forget it. If you are a real person making a real comment (not a phony compliment) I am willing to post even radically opposing points of view. If all you have to say is a compliment, …thanks, but don’t expect me to post it.

Crop circles.

June 17th, 2010

Crop circles.

Some still believe. People are just that way. It’s hard to admit we are wrong especially after being on the soap box for a decade. Money has something to do with this, but a little logic sort of dispells most of it. Perhaps one was real sometime ago, but which one?

http://www.csicop.org/si/show/circular_reasoning_the_mystery_of_crop_%250Dcircles_and_their_orbs_of_light/


http://www.joenickell.com
/

Anyway, thanks Joe for all your hard work.

World’s smallest chessboard.

June 17th, 2010

This is an excerpt from:
http://www.azonano.com/news.asp?newsID=18056

The micro chess board, created by students at Texas Tech, comes with micropieces scored with the design of traditional chess figures. Each piece is outfitted with even tinier stubs that allow a microrobotic arm to move them from square to square. Space along the side of the board is available to hold captured pieces.

Texas Tech’s chess board is 435 micrometers by 435 micrometers. (A human hair is about 100 micrometers in diameter.) Each chess piece is approximately 50 micrometers, or half the width of a human hair. The design integrates bidirectional linear drives that enable the movement of pieces longitudinally, a positioning stage with two degrees of freedom and, apparently, the world’s smallest chess board.

Contributing to Texas Tech’s success were Sahil Oak, Sandesh Rawool, Ganapathy Sivakumar and Ashwin Vijayasai, says team advisor and electrical engineering professor Tim Dallas.

Best fit.

June 17th, 2010

It’s nice to have equations and graphs which can be used to predict things.

In measuring nature we tabulate the data.
Sometimes it’s easiest to reference the data directly, by just looking up what happened before. Other times a graph can be plotted and used to guess from, when the desired data falls outside of the measured group data.

But it’s always a guess.

Sometimes an algebraic expression can be found which matches the data, as in a sine wave and an ocean wave. Sometimes the data can be reproduced by several different expressions, and so a choice may be made.

When choosing an expression to represent a physical phenomenon we generally rely upon the work of others, and use equations published in text books etc. and discovered by scientists.

But the equations are not actually discovered, but rather selected by the scientist as the best fit. Sometimes this is right on the money, but even then, nature is not actually bound by our equations.

It might be obvious that; next, more data might be collected and the equations refined or substituted. Complexity can increase as this equation is peer reviewed. It must fit with all the other equations describing nature. Standardized units of measure and mathematical standards (how the symbols are used etc.) blend all these equations into a usable system describing many aspects of nature.

For those who don’t know, Newton is credited for much of this in his expressions we now call Newtonian Physics. Later scientists noticed the fit was not perfect leading to Einstein and relativity and quantum mechanics.

Problem.

They don’t really fit together. Relativity for tiny stuff and larger, but quantum mechanics for the ultra small and smaller.

That process of: measure, fit, re-measure, re-fit, … continued unto the Standard Model and String Theory.

Using string theory (which is currently unproven) to engineer a device is a ways off, but quantum mechanical devices are indeed being made now (after nearly a century of discovery.) The 1960’s were called the golden age of quantum mechanics, but it seems the 2010’s will be the decade of initial quantum mechanical engineering.

The devices themselves are not so much quantum devices as all of reality should be subject to the same quantum laws, but rather the method of investigating and engineering using the odd rules of science collectively called quantum physics.

It’s hard to tell where Newton left off and modern physics began. Sure, gravitation is different in Newton’s view and Einstein’s as the later did provide a perspective yielding a better fit (relativity.) But Higgs has provided an even better one, if it turns out to be tested as accurate at all.

Back to the Higgs boson?

They say there may be five of them last I heard. But they have not yet captured an event to prove it. (Or they may not have analyzed the data yet.)

If you are wondering why this is important, especially if it stands to once again be corrected by scientists a century from now, is that; it is important to have equations which match the data we record from observing nature, to safely build our new devices.

So, to you inventors who are inclined to experiment rather than to look things up or apply equations, …I say: Go FOR IT! Let the others do the fitting while you follow your instincts. There is a remote chance you will stumble upon a phenomenon or process purely by luck or premonition. The laws of quantum mechanics would seem to support the notion that all things are possible (although some are not going to happen, period, and so don’t bet on a long-shot unless you can afford to loose.)

I tend to think that a scientist will eventually discover a reliable coupling between gravity and electricity, and demonstrate it in a lab. For it to be an engineered experiment it would seemingly rely upon string theory for its inspiration, perhaps as a test of that aspect. Finding the Higgs Boson just might provide the foundation upon which new equations are written and inspiration happens. A scientist may be driven to prove or disprove the conjecture of another. Scaling up might take decades or centuries. The Higgs boson might be found this or next year.

Or maybe it’s time for a new better fit?

Rachmaninoff opus 3 number 2 transposed and transcribed for classic guitar

June 17th, 2010

For those who asked…

Rachmaninoff score at fdavies.8k.com/FD19940401.html

It’s in E-minor and students are welcome to print and use it for free recitals. If you play for money, ask me before you add it to your repertoire, and if you want to sell the sheet, ask and I’ll hook you up with some better copies. The score above is hand written.

Often called the Fate Prelude, and rumored to be about the Russian revolution, Rachmaninoff was once asked what he wrote it for. I believe he answered back… "40 rupples."

Removing coffee stains on marble.

June 17th, 2010

This one is easy. Take some chalk and powder it, mix in some hydrogen peroxide and cover the stain. Place some plastic wrap over it and wait a day or so. The hydrogen peroxide is a bleaching agent and the chalk should absorb the moisture, pulling it and the now water and hydrogen peroxide soaked stain out of the marble.

I just removed a coffee stain the size of my lower arm from a piece of Cerrera marble. The stain was from a cup that had spilled months ago and gone unnoticed. The coffee, dried on the surface, was remove first with some dilute Mean Green, exposing a beautiful reflective clearly stained brown marble surface. I applied a slurry (mix) of chalk dust and hydrogen peroxide (very dilute …perhaps 1-3%) …covered it with a piece of plastic to keep it from drying out, and awoke the next morning to find the satin almost completely gone.

If I understand correctly, marble will absorb things, but that also means it will give them up if one simple adds more solvent (which in the case of coffee is water) to dissolve the stain (yes while it is still in the marble) and then pull the solvent out by evaporation. In this case, the dilute hydrogen peroxide should be pulled out of the marble, into the chalk where it should evaporate leaving behind any residue that came with it (it also bleaches so the residue might not be visible.)

A friend once asked me to get out a (blood) stain from a white silk robe she had. I asked a friend who was a cleaner and he explained that I should take a dry cloth and tap it in the center of the stain, to absorb the stain, while at the same time flooding (slightly) the unstained area around the stain with ammonia. It took a while, but eventually the size of the stain area got smaller as the stain got lighter until it was gone. He had cautioned me not to put liquid directly on the stain as that would spread the stain out further. The idea was to absorb where the stain was and thus pull the stain out.

While I’m not finished with my piece of marble, after the chalk dries out, then if there is anything left of the stain, I will try the method above, applying the solvent liberally (very wet paper towels covered with plastic wrap) on either side of the stain, and an almost dry mix of the chalk on the stain. Patience might be the key here as the flow of water through the marble might be very slow, …but the marble isn’t going anywhere anytime soon. I’m not sure how deep the stain is either. If the stain is shallow, then unlike the silk robe, the stain will not be dissolved by a lateral flow and carried to the center, and may need to be pulled by a cyclic process of soaking to dilute the stain followed by drying to pull the liquid out of the marble into the chalk. Repeating this process a few times might be required in either case. I’ve even wondered about pulling a vacuum above the stain for the drying cycle.

Marble is sensitive to acids so avoid vinegar or lemon juice, and of course never use scrubbing powder. I’ve heard that the marble tombstones are dissolving in the acid rain we have, more so than the granite. A friend mentioned today that granite makes a better counter top too, although marble has it’s uses in cooking.

Plasma rocket video.

June 17th, 2010

This is just cool in many ways. For one, it’s ten times efficiency or ordinary rockets, and more importantly this one is made with some ordinary stuff as you can see in the video. This is not a high powered device nor a DIY project but something which might have immediate application on satellites.

Quantum doughnuts.

June 11th, 2010

Here is a thought for si-fi writers, and investigators alike.

I present the quantum entangled doughnut pair. A big toroid and it’s quantum entangled mate, originally at the same location, then moved apart.

One set on Earth and the other on Luna, the light (and mater) entering through one side of one ring emerges at the other and vice verse. Sort of like that StarGate thing, only always on, like a magical doorway onto another world. Two sided of course, as rings are just this way.

If you borrow this for your next sci-fi story, please be sure to put it in the very far distant future. It’s really not likely that we will have one of these operational for tens of thousands of years if not millions. The transporter on the original StarTrek series always seemed to be a much more advanced device than the rest of their technology would imply.

Chuckle psychology.

June 8th, 2010

We did some work on a boat owned by a psychologist the other day. As we worked, he was right there beside us all day asking questions and watching our every move intently. As I moved on and off the boat bringing things to and fro, he was again right there and wanting to get involved and help. We don’t loose stride, nor are distracted by, nor made nervous by boat owners who remain aboard and watch us work (although like most craftsmen we really do prefer to use our own tools, handle them ourselves and perform our work without someone being in the way slowing us down slightly. We are there to work.)So, the owner was really upbeat. An outwardly happy fellow who seemed delighted to learn everything he could about what we did.I asked him why he chose his field and he said "it’s interesting."

Perhaps because of this, tonight I was thinking of an ex-girlfriend who used to get upset with me because I would chuckle at times when she though it was inappropriate. I think it is our choice how to feel and act, and that acting amused (a chuckle) when life presents any of its minor set backs is my way of getting past the problem and onto a solution. I try to skip the crying, and moaning, and screaming, and …well, you know, the rest of the negative emotional expressions.

I’m sorry, it may come off at times as a little off the mark (or arrogant, or condescending) but I would much rather hear people chuckle than yell. If I were to do something stupid, a chuckle from someone would be much more appreciated than being yelled at. I guess anger and sadness have their place, but not to the extent that I want to experience then twenty times a day.

It’s by choice, …or conscious effort. I could as easily scream.

Our problems on Earth right now are serious enough for a scream or tear. Some feel we are past the point of no return, others expect God or technology to come to the rescue, and still others deny there are any problems.

The solutions are obvious but not really something I would want governments to immediately implement or force on us. We should stop burning (…anything, including coal and oil.) We should stabilize the world’s population. And we should stop polluting the environment.

People should limit themselves. The major corporations should be freed from the legal obligation we are placing on them to make a profit, so they may act more altruistic without fear of the stock holders throwing out the leadership. Everyone should own stock, most especially in any local corporations. When the middle class owns the corporations, pride of ownership will take the place of temporary ownership for gains.

Working from home should become the norm. We need to seriously limit travel now even though it would destroy some of the airline companies and many of the resort communities. Far off vacations are simply more damaging to the Earth’s ozone than local ones. Same with purchases, …we all need to buy from the most local sources to reduce shipping as well as support our neighbors who in turn support us.

So next time you decide to sacrifice something you like (such as a vacation in paradise) do not lament nor curse, …chuckle. Chuckle, knowing that while your small sacrifice is nearly insignificant, it is all that you can personally do to save the world. Chuckle, knowing that you are doing your part yet will never be recognized as doing so, even by close family (especially the ones who really wanted to visit paradise with you.)

Have I mention lawns? I think it’s time to switch back to push mowers and smaller patches of mowed grass. There are many other ground covers which don’t require mowing. Grass is actually really good at producing oxygen so I’m not suggesting eliminating it, just to stop burning fuel to mow it. We should all be using available ground space for growing food anyway as growing your own is about as green as you can get for an endeavor.

A fusion reactor in every home might save us, but we can’t count on scientists to do anything except discover nature’s laws, and engineers (who invent things) are generally only able to create things based upon applying these discoveries. New discoveries and especially ones which are flights of fancy are not engineer-able. We simply can’t plan to discover free energy nor can we engineer a means of producing it. Edison worked on the light bulb for a year, but all the best guesses when he started could not have predicted when he would succeed. Call it luck or natural order or whatever: We can fantastic about science coming to the rescue but we should never plan on it, especially when the planet is at stake.

Beam me up.

June 7th, 2010

I’ve been following the research done on entanglement for some time now.

What’s entanglement you ask? Well, simply put, it’s responsible for what Einstien called SPOOKY ACTION AT A DISTANCE. Entangle two things and then separate them by any distance and they remain entangled. By entangled, I mean that if you change the state of one, the other will also change it’s state.

Imagine turning on a light switch in one place and a light going on somewhere else. If they are entangled, this is what would happen.

In a nut shell, it’s also like reading information in one place and reproducing it in another, a distance away.

Yes, exactly like the transporter on Star Trek. I tripped out when I first read of this actually being done although on the scale of a single photon of light, not a whole person.

So, here is the latest:

Experimenters have increased the distance record out to ten miles.
http://www.eetimes.com/news/latest/showArticle.jhtml?articleID=225000146

Experimenters have increased the number of photons used to 5 (still a long way from a human.)

http://physicsworld.com/cws/article/news/36229

There are also efforts underway to understand how nature may incorporate quantum entanglement including how birds fly south and evolution progresses.

Perhaps this will eventually lead to all things being connected, or something like The Force in the Star Wars movies. A friend once speculated that we are all connected to the big bang as if by an imaginary thread. Perhaps at the root of it, all is entangled. After all, much of the mater we are made of was once part of a star (or several?) …the hydrogen in us (making up a lot of us as part of water itself which makes up most of us) being a possible exception.

Another use of entanglement is secure communications, something which would certainly be of great commercial value, …thus the funding.