My Dogs Nipples Are Swollen

the angle of the nerd - areas

First post of the new heading angle of the nerd: pills dissertations, [this] informations (aka VS this dis) and curiosity in science or sci-fi (depending on your point of view: P).

I Venn diagrams are used in set theory as a graphic representation of set operations.
Union intesezione, difference and, Consequences, complementarity assume a deeper significance when it is accompanied by a notation color diagrams.



Particularly sobering is the conviction of English evangelical minister - no one is perfect * shrugs * - that the symbolic logic is not necessarily inconsistent with the typical reasoning of common sense.

adding a pinch of the same name, make a further digression on the subject image. A couple of posts ago there was talk of the French cartoonist Moebius, a couple of pages ago, I found the Möbius strip. The most famous example of non-orientable surface is undoubtedly the symbol of recyclable waste.



ordinary surfaces, designed as the areas in life everyday we are accustomed to observe, always have two "sides" (or rather, faces), so ideally you can always go either side without ever reaching the second, except through a possible line of demarcation comprising one edge (called board "): this can include the sphere, the torus, or cylinder. For these surfaces can be established by agreement first "superior" or "lower" or "internal" or "external."

In the case of the Möbius strip, however, this principle is lacking: there is only one side and one edge. After traveling for a ride, you are on the opposite side. Only after two paths we find ourselves on the leading edge. So for example an ant could pass from one surface to the "back", without crossing the tape and the rim without jumping, walking just far enough.

A Möbius strip can be easily made from a rectangular strip and thus combining the short sides having impressed one of them a half turn of twist of 180 °. At this point if you take the tape with a pencil, starting from a random point, you will notice that the track runs the entire surface of the tape is so unique.



limited animation (wikipedia)

Just to return to the artistic side, even Maurits Cornelis Escher spent most of his time to study the surface is not adjustable. The result is two incisions made in the early sixties: The Möbius Strip and Möbius Strip II.



Möbius Strip II (1963)

finally close the circle by showing the original interpretation of some critics (Ghezzi in the first place) on the cinema of David Lynch .
The idea is to attach the tape to the narrative structure of the plot of the last works of American film. In particular, stress that the time consists in exchanging the roles of the actors who, when confronted with constant deja-vu, giving the impression to travel the only face of the Möbius strip.