Showing posts with label towel day. Show all posts
Showing posts with label towel day. Show all posts

Holistic Detective Agency

Have you ever needed a holistic detective agency? And do you know what a holistic detective agency is? If you do not know, don't panic: I am going to say what it is this strange agency.
The term ‘holistic’ refers to my [detective's] conviction that what we are concerned with here is the fundamental interconnectedness of all things. I do not concern myself with such petty things as fingerprint powder, telltale pieces of pocket fluff and inane footprints. I see the solution to each problem as being detectable in the pattern and web of the whole. The connections between causes and effects are often much more subtle and complex than we with our rough and ready understanding of the physical world might naturally suppose.
And what are its secret origins?
Well, some researchers were once conducting such an experiment [Schroedinger's cat], but when they opened up the box, the cat was neither alive nor dead but was in fact completely missing, and they called me in to investigate. I was able to deduce that nothing very dramatic had happened. The cat had merely got fed up with being repeatedly locked up in a box and occasionally gassed and had taken the first opportunity to hoof it through the window. It was for me the work of a moment to set a saucer of milk by the window and call “Bernice” in an enticing voice -- the cat’s name was Bernice, you understand -- and the cat was soon restored. A simple enough matter, but it seemed to create quite an impression in certain circles, and soon one thing led to another as they do and it all culminated in the thriving career you see before you.

Doubt like a salmon

An happy #towelday to all readers!
If you has ready and appreciate also one book by Douglas Adams, I think that you could have a little idea of what the people who knew him proved after his death. So, Peter Guzzardi composed The Salmond of Doubt with the idea to make an hearthful tribute to the writer of the Hitchhiker's Guide using unpublished articles, interviews and the third unfinished novel of the series of Dirk Gently, which also gives its name to collection.

from the italian cover of the book, by Franco Brambilla

The Infinite Improbability Drive

#towelday #InfiniteImprobabilityDrive #DouglasAdams
The Infinite Improbability Drive is a faster-than-light drive. The most prominent usage of the drive is in the starship Heart of Gold. It is based on a particular perception of quantum theory: a subatomic particle is most likely to be in a particular place, such as near the nucleus of an atom, but there is also an infinitesimally small probability of it being found very far from its point of origin (for example close to a distant star). Thus, a body could travel from place to place without passing through the intervening space (or hyperspace, for that matter), if you had sufficient control of probability. According to the Guide, the drive "passes through every conceivable point in every conceivable universe almost simultaneously," meaning that you are "never sure where you'll end up or even what species you'll be when they get there" and "it's therefore important to dress accordingly".
The Guide's entry on the drive also states that it was invented "following research into finite improbability, which was often used to break the ice at parties by making all the molecules in the hostess' undergarments leap one foot simultaneously to the left, in accordance with the theory of indeterminacy". It further explains that many respectable physicists wouldn't stand for that sort of thing, "partly because it was a debasement of science, but mostly because they didn't get invited to those sort of parties."
(source: Wikipedia)
The first application of the concept behind the infinite improbability drive comes from an old experiment from the 20th century:
Well, some researchers were once conducting such an experiment, but when they opened up the box, the cat was neither alive nor dead but was in fact completely missing, and they called me in to investigate. I was able to deduce that nothing very dramatic had happened. The cat had merely got fed up with being repeatedly locked up in a box and occasionally gassed and had taken the first opportunity to hoof it through the window. It was for me the work of a moment to set a saucer of milk by the window and call "Bernice" in an enticing voice -- the cat's name was Bernice, you understand -- and the cat was soon restored.
(from Dirk Gently's Holistic Detective Agency by Douglas Adams)

Music and fractal landscapes

published by @ulaulaman
For the #towelday I publish the paper by Richard MacDuff extracted from from "Dirk Gently's Holistic Detective Agency" by Douglas Adams


Mathematical analysis and computer modelling are revealing to us that the shapes and processes we encounter in nature—the way that plants grow, the way that mountains erode or rivers flow, the way that snowflakes or islands achieve their shapes, the way that light plays on a surface, the way the milk folds and spins into your coffee as you stir it, the way that laughter sweeps through a crowd of people—all these things in their seemingly magical complexity can be described by the interaction of mathematical processes that are, if anything, even more magical in their simplicity.
Shapes that we think of as random are in fact the products of complex shifting webs of numbers obeying simple rules. The very word “natural” that we have often taken to mean “unstructured” in fact describes shapes and processes that appear so unfathomably complex that we cannot consciously perceive the simple natural laws at work.
They can all be described by numbers.
We know, however, that the mind is capable of understanding these matters in all their complexity and in all their simplicity. A ball flying through the air is responding to the force and direction with which it was thrown, the action of gravity, the friction of the air which it must expend its energy on overcoming, the turbulence of the air around its surface, and the rate and direction of the ball’s spin.
And yet, someone who might have difficulty consciously trying to work out what 3 × 4 × 5 comes to would have no trouble in doing differential calculus and a whole host of related calculations so astoundingly fast that they can actually catch a flying ball.
People who call this “instinct” are merely giving the phenomenon a name, not explaining anything.
I think that the closest that human beings come to expressing our understanding of these natural complexities is in music. It is the most abstract of the arts—it has no meaning or purpose other than to be itself.
Every single aspect of a piece of music can be represented by numbers. From the organisation of movements in a whole symphony, down through the patterns of pitch and rhythm that make up the melodies and harmonies, the dynamics that shape the performance, all the way down to the timbres of the notes themselves, their harmonics, the way they change over time, in short, all the elements of a noise that distinguish between the sound of one person piping on a piccolo and another one thumping a drum—all of these things can be expressed by patterns and hierarchies of numbers.
And in my experience the more internal relationships there are between the patterns of numbers at different levels of the hierarchy, however complex and subtle those relationships may be, the more satisfying and, well, whole, the music will seem to be.
In fact the more subtle and complex those Relationships, and the further they are beyond the grasp of the conscious mind, the more the instinctive part of your mind—by which I mean that part of your mind that can do differential calculus so astoundingly fast that it will put your hand in the right place to catch a flying ball—the more that part of your brain revels in it.
Music of any complexity (and even “Three Blind Mice” is complex in its way by the time someone has actually performed it on an instrument with its own individual timbre and articulation) passes beyond your conscious mind into the arms of your own private mathematical genius who dwells in your unconscious responding to all the inner complexities and relationships and proportions that we think we know nothing about.
Some people object to such a view of music, saying that if you reduce music to mathematics, where does the emotion come into it? I would say that it’s never been out of it.
The things by which our emotions can be moved—the shape of a flower or a Grecian urn, the way a baby grows, the way the wind brushes across your face, the way clouds move, their shapes, the way light dances on the water, or daffodils flutter in the breeze, the way in which the person you love moves their head, the way their hair follows that movement, the curve described by the dying fall of the last chord of a piece of music—all these things can be described by the complex flow of numbers.
Thatís not a reduction of it, thatís the beauty of it. Ask Newton.
Ask Einstein.
Ask the poet (Keats) who said that what the imagination seizes as beauty must be truth.
He might also have said that what the hand seizes as a ball must be truth, but he didnít, because he was a poet and preferred loafing about under trees with a bottle of laudanum and a notebook to playing cricket, but it would have been equally true.
Because that is at the heart of the relationship between on the one hand our “instinctive” understanding of shape, form, movement, light, and on the other hand our emotional responses to them.
And that is why I believe that there must be a form of music inherent in nature, in natural objects, in the patterns of natural processes. A music that would be as deeply satisfying as any naturally occurring beauty - and our own deepest emotions are, after all, a form of naturally occurring beauty...

Weighted towel

a good #towelday by @ulaulaman
The primary object of the present invention is to provide a simple and safe means to secure a beach towel or blanket to the ground in the wind. A second objectis to make the invention easily carried. One embodiment offers an attached for holding wallet, clothing, etc. while swimming. These objects and will become apparent from the drawings, the description givev herein and appended claims.
In all embodiments the anchoring means is provided by a weighted cord sewnall around the perimeter of the material. Thus this invention could comprise a beach towel or a blanket or a mat. Metal weights are first inserted into a woven cord. The ends are scaled. Such weighted are available commercially. The weighted cord is then sewn into a hem along the perimeter of the material.
Arthur Dent thanks!

From the patent number 4634618 by Keith B. Greer et al (1987) ...
And a good towel day!

Don't panic! It's Towel Day

Wikipedia writes:
Towel Day is celebrated every 25 May as a tribute by fans of the late author Douglas Adams. On this day, fans carry a towel with them to demonstrate their love for the books and the author, as referenced in Adams's The Hitchhiker's Guide to the Galaxy. The commemoration was first held in 2001, two weeks after Adams's death on 11 May 2001.
I forget my towel, so I post this Linus image: don't panic!

I search on Scholar The Hitchhiker's Guide to the Galaxy and I find some references
The Hitchhiker's Guide To Teaching Legal Research To The Google Generation (pdf)
A guide to the Guide by Cohen-Rose and Christiansen (Google Books preview)
Equation-of-Motion Coupled-Cluster Methods for Open-Shell and Electronically Excited Species: The Hitchhiker's Guide to Fock Spacez by Anna I. Krylov
And there's also a ref. in Penrose's book The Road to Reality: A Complete Guide to the Laws of the Universe
I conclude with a video from the official site of Towel Day