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Dimensions 1, 8 & 24 have universally optimal
configurations; 3 is a zoo
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EpicMegatrax
from Greatest Hits on 2019-06-01 05:17 [#02578902]
Points: 25264 Status: Regular
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LAZY_TITLE
Dimensions 1, 8 & 24 have universally optimal configurations; 3 is a zoo
non-math readable
me, previously, on spheres.
i actually remember going off on an insane tangent about the sphere packing problem. it was 2016 or so; i was on the porch with a cigarette. the original source, to me, was a passage from neal stephonson's book "cryptonomicon," which featured an extended passage about the optimum consumption of captain crunch cereal; how it was ship-shaped to satisfy marketing but effectively spheroid for packaging purposes.
the "what is the optimal way to cram a number of spheres into a space?" is one of my favorite fings, really. it seems so simple at first, but, no, it's nuts. a very fascinating sphere of context.
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EpicMegatrax
from Greatest Hits on 2019-06-01 05:30 [#02578903]
Points: 25264 Status: Regular
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Randy takes the red box and holds it securely between his knees with
the handy stay closed tab pointing away from him. Using both hands in unison
he carefully works his fingertips underneath the flap, trying to achieve
equal pressure on each side, paying special attention to places where too
much glue was laid down by the gluing machine. For a few long, tense
moments, nothing at all happens, and an ignorant or impatient observer might
suppose that Randy is getting nowhere. But then the entire flap pops open in
an instant as the entire glue front gives way. Randy hates it when the box
top gets bent or, worst of all possible words, torn. The lower flap is
merely tacked down with a couple of small glue spots and Randy pulls it back
to reveal a translucent, inflated sac. The halogen down light recessed in
the ceiling shines through the cloudy material of the sac to reveal gold
everywhere the glint of gold. Randy rotates the box ninety degrees and holds
it between his knees so its long axis is pointed at the television set, then
grips the top of the sac and carefully parts its heat sealed seam, which
purrs as it gives way. Removal of the somewhat milky plastic barrier causes
the individual nuggets of Cap'n Crunch to resolve, under the halogen light,
with a kind of preternatural crispness and definition that makes the roof of
Randy's mouth glow and throb in trepidation.
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EpicMegatrax
from Greatest Hits on 2019-06-01 05:31 [#02578904]
Points: 25264 Status: Regular
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On the TV, the dancing instructors have finished demonstrating the
basic steps. It is almost painful to watch them doing the compulsories,
because when they do, they must willfully forget everything they know about
advanced ballroom dancing, and dance like persons who have suffered strokes,
or major brain injuries, that have wiped out not only the parts of their
brain responsible for fine motor skills but also blown every panel in the
aesthetic discretion module. They must, in other words, dance the way their
beginning pupils like Randy dance. The gold nuggets of Cap'n Crunch pelt the bottom of the bowl with a
sound like glass rods being snapped in half Tiny fragments spall away from
their corners and ricochet around on the white porcelain surface. World
class cereal eating is a dance of fine compromises. The giant heaping bowl
of sodden cereal, awash in milk, is the mark of the novice. Ideally one
wants the bone dry cereal nuggets and the cryogenic milk to enter the mouth
with minimal contact and for the entire reaction between them to take place
in the mouth. Randy has worked out a set of mental blueprints for a special
cereal eating spoon that will have a tube running down the handle and a
little pump for the milk, so that you can spoon dry cereal up out of a bowl,
hit a button with your thumb, and squirt milk into the bowl of the spoon
even as you are introducing it into your mouth. The next best thing is to
work in small increments, putting only a small amount of Cap'n Crunch in
your bowl at a time and eating it all up before it becomes a pit of
loathsome slime, which, in the case of Cap'n Crunch, takes about thirty
seconds.
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EpicMegatrax
from Greatest Hits on 2019-06-01 05:32 [#02578905]
Points: 25264 Status: Regular
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At this point in the videotape he always wonders if he's inadvertently
set his beer down on the fast forward button, or something, because the
dancers go straight from their vicious Randy parody into something that
obviously qualifies as advanced dancing. Randy knows that the steps they are
doing are nominally the same as the basic steps demonstrated earlier, but
he's damned if he can tell which is which, once they go into their creative
mode. There is no recognizable transition, and that is what pisses Randy
off, and has always pissed him off, about dancing lessons. Any moron can
learn to trudge through the basic steps. That takes all of half an hour. But
when that half hour is over, dancing instructors always expect you'll take
flight and go through one of those miraculous time lapse transitions that
happen only in Broadway musicals and begin dancing brilliantly. Randy
supposes that people who are lousy at math feel the same way: the instructor
writes a few simple equations on the board, and ten minutes later he's
deriving the speed of light in a vacuum. He pours the milk with one hand while jamming the spoon in with the
other, not wanting to waste a single moment of the magical, golden time when
cold milk and Cap'n Crunch are together but have not yet begun to pollute
each other's essential natures: two Platonic ideals separated by a boundary
a molecule wide.
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EpicMegatrax
from Greatest Hits on 2019-06-01 05:33 [#02578906]
Points: 25264 Status: Regular
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Where the flume of milk splashes over the spoon handle, the
polished stainless steel fogs with condensation. Randy of course uses whole
milk, because otherwise why bother? Anything less is indistinguishable from
water, and besides he thinks that the fat in whole milk acts as some kind of
a buffer that retards the dissolution into slime process. The giant spoon
goes into his mouth before the milk in the bowl has even had time to seek
its own level. A few drips come off the bottom and are caught by his freshly
washed goatee (still trying to find the right balance between beardedness
and vulnerability, Randy has allowed one of these to grow). Randy sets the
milk pod down, grabs a fluffy napkin, lifts it to his chin, and uses a
pinching motion to sort of lift the drops of milk from his whiskers rather
than smashing and smearing them down into the beard. Meanwhile all his
concentration is fixed on the interior of his mouth, which naturally he
cannot see, but which he can imagine in three dimensions as if zooming
through it in a virtual reality display. Here is where a novice would lose
his cool and simply chomp down. A few of the nuggets would explode between
his molars, but then his jaw would snap shut and drive all of the
unshattered nuggets straight up into his palate where their armor of razor
sharp dextrose crystals would inflict massive collateral damage, turning the
rest of the meal into a sort of pain hazed death march and rendering him
Novocain mute for three days. But Randy has, over time, worked out a really
fiendish Cap'n Crunch eating strategy that revolves around playing the
nuggets' most deadly features against each other. The nuggets themselves are
pillow shaped and vaguely striated to echo piratical treasure chests.
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EpicMegatrax
from Greatest Hits on 2019-06-01 05:34 [#02578907]
Points: 25264 Status: Regular
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Now, with a flake type of cereal, Randy's strategy would never work.
But then, Cap'n Crunch in a flake form would be suicidal madness; it would
last about as long, when immersed in milk, as snowflakes sifting down into a
deep fryer. No, the cereal engineers at General Mills had to find a shape
that would minimize surface area, and, as some sort of compromise between
the sphere that is dictated by Euclidean geometry and whatever sunken
treasure related shapes that the cereal aestheticians were probably
clamoring for, they came up with this hard to pin down striated pillow
formation. The important thing, for Randy's purposes, is that the individual
pieces of Cap'n Crunch are, to a very rough approximation, shaped kind of
like molars. The strategy, then, is to make the Cap'n Crunch chew itself by
grinding the nuggets together in the center of the oral cavity, like stones
in a lapidary tumbler. Like advanced ballroom dancing, verbal explanations
(or for that matter watching videotapes) only goes so far and then your body
just has to learn the moves. By the time he has eaten a satisfactory amount of Cap'n Crunch (about a
third of a 25 ounce box) and reached the bottom of his beer bottle, Randy
has convinced himself that this whole dance thing is a practical joke. When
he reaches the hotel, Amy and Doug Shaftoe will be waiting for him with
mischievous smiles. They will tell him they were just teasing and then take
him into the bar to talk him down. Randy puts on the last few bits of his suit. Any delaying tactics are
acceptable at this point, so he checks his e mail.
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w M w
from London (United Kingdom) on 2019-06-02 19:06 [#02579065]
Points: 21419 Status: Regular
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The sphere packing problem was referenced on Nigga Turtles (soon to be shadow banned by oligopoly tube if not already) when michaelangelo (probably) said "then... we're gonna pack your mouth full of nuts" to April on the telephone.
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EpicMegatrax
from Greatest Hits on 2019-06-02 20:04 [#02579108]
Points: 25264 Status: Regular
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truly, this math is everywhere
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