27 JUL 2018 by ideonexus
Shannon and Thorp Hack the Roulette Wheel
It was in this tinkerer’s laboratory that they set out to understand how roulette could be gamed, ordering “a regulation roulette wheel from Reno for $1,500,” a strobe light, and a clock whose hand revolved once per second. Thorp was given inside access to Shannon in all his tinkering glory:
Gadgets . . . were everywhere. He had a mechanical coin tosser which could be set to flip the coin through a set number of revolutions, producing a head or tail according to the setting. As a joke... 1 
notes
notes07 AUG 2017 by ideonexus
The Double Multiplicative Nature of Fraction or Ratio Equ...
Most real-world numbers aren’t always so nice and neat, with wholenumber multiples. If, say, Plant A grew from 2 to 3 feet, and Plant B grew from 6 to 8 feet, then we would say that Plant A grew 1/2 of its original height, whereas Plant B only grew 1/3 of its original height. Such reasoning exemplifies multiplicative thinking and necessarily involves rational numbers.
Consider a final example. If you ask a rising 6th grader to compare 13/15 and 14/ 16, chances are that the student will say... 1 notes
notes09 JAN 2017 by ideonexus
The Machine Euthanizes the Atheletic
"Well, the Book"s wrong, for I have been out on my feet."
For Kuno was possessed of a certain physical strength.
By these days it was a demerit to be muscular. Each infant was examined at birth, and all who promised undue strength were destroyed. Humanitarians may protest, but it would have been no true kindness to let an athlete live; he would never have been happy in that state of life to which the Machine had called him; he would have yearned for trees to climb, rivers to bathe in, meado...Folksonomies: distopia
Folksonomies: distopia
1 notes
notes03 JAN 2017 by ideonexus
Evolving Rules of a Wargame
We then began to humanise that wild and fearful fowl, the gun. We decided that a gun could not be fired if there were not six—afterwards we reduced the number to four—men within six inches of it. And we ruled that a gun could not both fire and move in the same general move: it could either be fired or moved (or left alone). If there were less than six men within six inches of a gun, then we tried letting it fire as many shots as there were men, and we permitted a single man to move a gun,... 1 notes
notes30 DEC 2013 by ideonexus
The Silos in "Wool"
The silo was something she had always taken for granted. The priests say it had always been here, that it was lovingly created by a caring God, that everything they would ever need had been provided for. Juliette had a hard time with this story. A few years ago, she had been on the first team to drill past 10,000 feet and hit new oil reserves. She had a sense of the size and scope of the world below them. And then she had seen with her own eyes the view of the outside with its phantom-like sh...Folksonomies: science fiction imagination
Folksonomies: science fiction imagination
1 notes
notesDescription of the hints of a world beyond the silos.
13 OCT 2013 by ideonexus
Studying Nature Brings Us Closer to the Gods
Mortal as I am, I know that I am born for a day, but when I follow the serried multitude of the stars in their circular course, my feet no longer touch the earth; I ascend to Zeus himself to feast me on ambrosia, the food of the gods. 1 notes
notesPtolemy explains the rapturous feelings he gets from studying the stars.
04 AUG 2012 by ideonexus
Study is More Efficient Than Contemplation
吾嘗終日而思矣，不如須臾之所學也。吾嘗跂而望矣，不如登高之博見也。登高而招，臂非加長也，而見者遠；順風而呼，聲非加疾也，而聞者彰。假輿馬者，非利足也，而致千里；假舟楫者，非能水也，而絕江河。君子生非異也，善假於物也。
2 [Translated] Once I spent an entire day in thought, but it was not as good as a moment of study. Once I stood on tiptoe to gaze into the distance, but it was not as good as climbing to a high place to get a broad view. Climbing to a high place and waving will not make your arm any longer, but you can be seen from farther away. Shouting down the wind will give your voice no added urgency, but you can be heard more distinctly. By borrowing a horse and carriage you will not improve your feet, but you can cover a thousand li. By borrowing a boat and paddles you will not improve your ability in water, but you can cross rivers and seas. The noble person is by birth no different from others, but he is good at borrowing from external things.
11 JUN 2012 by ideonexus
Science Reveals the Wonder of a Mundane World
Where the untrained eye will see nothing but mire and dirt, Science will often reveal exquisite possibilities. The mud we tread under our feet in the street is a grimy mixture of clay and sand, soot and water. Separate the sand, however, as Ruskinn observes—let the atoms arrange themselves in peace according to their nature—and you have the opal. Separate the clay, and it becomes a white earth, fit for the finest porcelain; or if it still further purifies itself, you have a sapphire. Take...Turning mud into wonder.
09 JUN 2012 by ideonexus
The Center of the Earth
Of all regions of the earth none invites speculation more than that which lies beneath our feet, and in none is speculation more dangerous; yet, apart from speculation, it is little that we can say regarding the constitution of the interior of the earth. We know, with sufficient accuracy for most purposes, its size and shape: we know that its mean density is about 5½ times that of water, that the density must increase towards the centre, and that the temperature must be high, but beyond thes... 1 notes
notesInvites speculation and is the realm of mathematics, not observation.
05 JUN 2012 by ideonexus
Lenses Supplement the Infirmities of the Senses
The next care to be taken, in respect of the Senses, is a supplying of their infirmities with Instruments, and, as it were, the adding of artificial Organs to the natural; this in one of them has been of late years accomplisht with prodigious benefit to all sorts of useful knowledge, by the invention of Optical Glasses. By the means of Telescopes, there is nothing so far distant but may be represented to our view; and by the help of Microscopes, there is nothing so small, as to escape our inq...Folksonomies: perception senses
Folksonomies: perception senses
Telescopes and Microscopes allow us to see what our eyes cannot.
