25 OCT 2017 by ideonexus

 Blockchains

Ownership on the Bitcoin blockchain is determined by a pair of cryptographic keys. The first, called the public key, resides in the blockchain for anyone to see. The second is called the private key, and its owner keeps it safe from view. The two keys have a special mathematical relationship that makes them useful for signing digital messages. Here’s how that happens: Helmut takes a message, combines it with his private key, does some calculations, and ends up with a long number. Anyone who...
Folksonomies: blockchains technology
Folksonomies: blockchains technology
  1  notes
22 SEP 2017 by ideonexus

 The Role of the Educator In Regards to the Future

The world is changing -- it is getting both smaller and bigger at the same time. Our world shrinks as technologies now allow us to communicate both synchronously and asynchronously with peers around the world. Conversely, the explosion of information now available to us expands our view of the world. As a result of the ability to communicate globally and the information explosion, education must change. Most educators might not want to change, but the change is coming -- it is a matter of whe...
Folksonomies: futurism education
Folksonomies: futurism education
  1  notes
31 JAN 2015 by ideonexus

 The Plural of Thrips

Much the same can be said of the Thrips, those tiny plant insects that haven't so much as a decent singular to their name, one wished to specify an individual Thrips. You may speak many Thrips, or of one Thrips, but never of one Thrip, how strongly you may feel that such a ruling is in restraint of 'our personal liberties. Nor may you employ the word Thripses to mean one or more Thrips, convenient as it might be in a pinch. The New English Dictionary states, with what end in view I don't know...
Folksonomies: grammar humor
Folksonomies: grammar humor
  1  notes
 
29 OCT 2014 by ideonexus

 So Many Objects in Space, Why isn't it Filled with Light?

So numerous are the objects which meet our view in the heavens, that we cannot imagine a point of space where some light would not strike the eye;—innumerable stars, thousands of double and multiple systems, clusters in one blaze with their tens of thousands of stars, and the nebulae amazing us by the strangeness of their forms and the incomprehensibility of their nature, till at last, from the limit of our senses, even these thin and airy phantoms vanish in the distance.
Folksonomies: astronomy
Folksonomies: astronomy
  1  notes
 
15 OCT 2014 by ideonexus

 Becoming a "Be-er" of Other People

For a while, one’s speaking is largely “fake” — that is, one is thinking in one’s native language but substituting words quickly enough to give the impression that the thinking is going on in the second language; however, as one’s experience with the second language grows, new grammatical habits form and turn slowly into reflexes, as do thousands of lexical items, and the second language becomes more and more rooted, more and more genuine. One gradually becomes a fluent thinker in...
  1  notes
 
01 SEP 2014 by ideonexus

 Opinion is Not Necessarily a Good Thing

We live in a civilization that believes that opinion per se is good. This can be seen in the very derivation of the word, which comes from the Latin opinari, meaning to think. It is a fundamental tenet of our civilization that thinking is good, a noble process which is one of the few things separating us from the base animal world. I too believe that thinking is a noble calling and that it is necessary to have opinions for the sake of the kind of thinking that can lead us to a better world. ...
Folksonomies: opinion stance position
Folksonomies: opinion stance position
  1  notes
 
09 AUG 2014 by ideonexus

 Flexible Thinkers

Flexible thinkers are able to shift through multiple perceptual positions at will. One perceptual orientation is what Jean Piaget called egocentrism, or perceiving from our own point of view. By contrast, allocentrism is the position in which we perceive through another person's orientation. We operate from this second position when we empathize with another's feelings, predict how others are thinking, and anticipate potential misunderstandings. Another perceptual position is macrocentric....
Folksonomies: cognition
Folksonomies: cognition
  1  notes
 
22 JAN 2014 by ideonexus

 Everything is Made of Atoms

Everything is made of atoms. That is the key hypothesis. The most important hypothesis in all of biology, for example, is that everything that animals do, atoms do. In other words, there is nothing that living things do that cannot be understood from the point of view that they are made of atoms acting according to the laws of physics. This was not known from the beginning it took some experimenting and theorizing to suggest this hypothesis, but now it is accepted, and it is the most useful t...
  1  notes

Therefore all biological and chemical phenomena can be understood from this perspective of physics.

22 JAN 2014 by ideonexus

 Beauty is More Important than Accuracy

I think that there is a moral to this story, namely that it is more important to have beauty in one's equations than to have them fit experiment. If Schroedinger had been more confident of his work, he could have published it some months earlier, and he could have published a more accurate equation .... It seems that if one is working from the point of view of getting beauty in one's equations, and if one has really a sound insight, one is on a sure line of progress. If there is not complete ...
Folksonomies: mathematics beauty reality
Folksonomies: mathematics beauty reality
  1  notes

Interesting argument: beauty in an equation is more important than having it completely fit the reality.

29 NOV 2013 by ideonexus

 We are Machines that Carry Genes

We are survival machines, but 'we' does not mean just people. It embraces all animals, plants, bacteria, and viruses. The total number of survival machines on earth is very difficult to count and even the total number of species is unknown. Taking just insects alone, the number of living species has been estimated at around three million, and the number of individual insects may be a million million million. Different sorts of survival machine appear very varied on the outside and in their i...
Folksonomies: evolution genes
Folksonomies: evolution genes
  1  notes

The Gene's-eye view of evolution is very useful.