25 OCT 2017 by ideonexus

 The False Promise of WWW Enlightenment

Never before have so many people been connected together in an instantly responsive network through which memes can spread faster than natural viruses. But the notion that taking the whole world online would create a utopia of netizens, all equal in cyberspace, was always a fantasy—as much a delusion as Luther’s vision of a “priesthood of all believers.” The reality is that the global network has become a transmission mechanism for all kinds of manias and panics, just as the combinati...
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17 AUG 2016 by ideonexus

 Ways of Being "Good at Math"

It’s a common misconception that someone who’s good at math is someone who can compute quickly and accurately. But mathematics is a broad discipline, and there are many ways to be smart in math. Some students are good at seeing relationships among numbers, quantities, or objects. Others may be creative problem solvers, able to come up with nonroutine ways to approach an unfamiliar problem. Still others may be good at visually representing relationships or problems or translating from one ...
Folksonomies: education mathematics
Folksonomies: education mathematics
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25 MAY 2015 by ideonexus

 Jay Rosen: Information Overload

Filters in a digital world work not by removing what is filtered out; they simply don't select for it. The unselected material is still there, ready to be let through by someone else's filter. Intelligent filters, which is what we need, come in three kinds: A smart person who takes in a lot and tells you what you need to know. The ancient term for this is "editor." The front page of the New York Times still works this way. An algorithm that sifts through the choices other smart people have...
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23 MAY 2015 by ideonexus

 Human Propensity for Making More Complicated Things Out o...

A child stacks and packs all kinds of blocks and boxes, lines them up, and knocks them down. What is that all about? Clearly, the child is learning about space! But how on earth does one learn about time? Can one time fit inside another? Can two of them go side by side? In music, we find out! It is often said that mathematicians are unusually involved in music, but that musicians are not involved in mathematics. Perhaps both mathematicians and musicians like to make simple things more complic...
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24 JAN 2015 by ideonexus

 Animal Plants: Life Adapted to a Vacuum

"These remarkable creatures combine the characteristics of animals and plants and so I call them animal-plants. ..." "All right. Don't get angry. Just explain how your creatures avoid getting dried up like mummies." "That is simple. Their skin is covered with a glassy layer, thin and flexible but absolutely impermeable to gases and liquids and all kinds of particles, so that the creatures are protected from any loss of material. . . . Their bodies have appendages which look like wings and a...
Folksonomies: speculation
Folksonomies: speculation
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21 JUN 2014 by ideonexus

 Four kinds of intrinsic rewards

First and foremost, we crave satisfying work, every single day. The exact nature of this “satisfying work” is different from person to person, but for everyone it means being immersed in clearly defined, demanding activities that allow us to see the direct impact of our efforts. Second, we crave the experience, or at least the hope, of being successful. We want to feel powerful in our own lives and show off to others what we’re good at. We want to be optimistic about our own chances fo...
Folksonomies: happiness
Folksonomies: happiness
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18 APR 2014 by ideonexus

 Early Statement on the Scientific Method

The seeker after truth is not one who studies the writings of the ancients and, following his natural disposition, puts his trust in them, but rather the one who suspects his faith in them and questions what he gathers from them, the one who submits to argument and demonstration and not the sayings of human beings whose nature is fraught with all kinds of imperfection and deficiency. Thus the duty of the man who investigates the writings of scientists, if learning the truth is his goal, is to...
Folksonomies: science scientific method
Folksonomies: science scientific method
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From Alhazen.

29 DEC 2013 by ideonexus

 Language is Important in Direction

The room is made i.^ up of four curtains, used to create four walls in a rectangle, defined by two types of information: geometric (two short walls and two long walls) and color information (one red wall). Now, think about the corners. If you are using only geometric information, pairs of corners are identical. There are two corners with a short wall on the ft and a long wall on the right, and two corners the other way around. If you are using only color information, there are also two pair...
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Deprived of the language centers of the brain, subjects are unable to determine their location in a test.

30 NOV 2013 by TGAW

 Elridge Cleaver on Prison's Effect of Sense of Self

You may find this difficult to understand but it is very easy for one in prison to lose his sense of self. And if he has been undergoing all kinds of extreme, involved, and unregulated changes, then he ends up not knowing who he is. Take the point of being attractive to women. You can easily see how a man can lose his arrogance or certainty on that point while in prison! When he's in the free world, he gets constant feedback on how he looks from the number of female heads he turns when he...
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Elridge Cleaver talks about how prison has a detrimental effect on one's self esteem

13 OCT 2013 by ideonexus

 The Two Kinds of Cell Growth

In 1838, Matthias Schleiden, a botanist, and Theodor Schwann, a physiologist, both working in Germany, had claimed that all living organisms were built out of fundamental building blocks called cells. Borrowing and extending this idea, Virchow set out to create a “cellular theory” of human biology, basing it on two fundamental tenets. First, that human bodies (like the bodies of all animals and plants) were made up of cells. Second, that cells only arose from other cells—omnis cellula e...
Folksonomies: biology cells cell growth
Folksonomies: biology cells cell growth
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Hypertrophy and hyperplasia, cells either grow bigger or grow more numerous.