I've always been interested in folk art.
Below is an example of small-scale decorative art, in canal boat 'roses' style. You see it more or less actual size, if your browser is on on standard settings.
I've always been interested in folk art.
Below is an example of small-scale decorative art, in canal boat 'roses' style. You see it more or less actual size, if your browser is on on standard settings.
There is some evidence we can and in an easy way, by exploiting the effect of 'psychological distance'.
Instead of thinking about a problem solely in terms of here and now, we should project our mind to distant places and times, try to consider the problem from another person's standpoint and so on. How would the problem appear to an inhabitant of a planet billions of light years away?
Research reported in Scientific American suggest this technique may really help us to be more inventive and creative.
And how did the prisoner divide the rope?
New Scientist surveyed the latest research.
Dogs vs cats: The great pet showdown
Cats win on
Brains, Popularity, Vocalisation, Supersenses, Eco-Friendliness
Dogs win on
Shared history, Bonding, Understanding, Problem solving, Tractability, Utility
So you see that's Cats 5, Dogs 6. But was it a fur contest?
More specifically there is some recent research to suggest that trying to answer the TMA (say) very quickly without any study of the unit - just jot down the best guess you can come up with - and only afterwards reading the relevant bits of the course may improve retention significantly. See http://www.scientificamerican.com/article.cfm?id=getting-it-wrong&sc=MND_20091029
In fact it seems the effect could apply if we do no more than for example try the SAQ before the related section, or even read the unit introduction, section or unit summary etc. before tackling the body of the unit.
I found this idea intriguing and intuitively appealing, but of course that isn't evidence.
To me deciding whether you should trust something you read on the internet is no different from evaluating a printed source. The only way to do it is for each of us to learn critical skills and apply them ourselves. The responsibility of making a judgement can only ever be partially delegated to traditional authorities.
It might seem that an encyclopedia, for example, will be trustworthy because the articles are written by established experts, and carefully reviewed. True this ensures that in most cases what is published is free from serious factual error. However it will still reflect the particular viewpoint of the author (and the editor), which may be quite partial when deciding what to include, which parts of the topic to emphaise as important, and what the significant areas of future developement are likely to be. From any one article the reader can only ever get a one-sided impression.
In addition, bias has been introduced by the mere act of choosing what topics the encyclpedia has articles on and whch not.
Only by consulting multiple sources and comparing can we form a balanced view, and this process must always involve us taking an active part. No panel of experts can ever be relied on to do it for us.
For these and other reasons I cannot believe that the recent proposal by A.C.Grayling, see
could ever achieve what it sets out to do, which is to somehow validate the web, so that learners could be directed only to reliable sites.
The first high-level programming language was Plankalkül, published in 1948 by the German inventor Konrad Zuse.
This language was very advanced for its time and already displayed many of the same structures we see today. Below is a sample program, followed by a working equivalent in JavaScript.
The program is not at all hard to follow. The only somewhat obscure part is in the declarations e.g. V0[:8.0], where the :8.0 seems to be reserving memory space for an integer represented in 8 bits.
<SCRIPT LANGUAGE=JAVASCRIPT>
/* Plankalkul example from Konrad Zuse
Original code:
P1 max3 (V0[:8.0],V1[:8.0],V2[:8.0]) => R0[:8.0]
max(V0[:8.0],V1[:8.0]) => Z1[:8.0]
max(Z1[:8.0],V2[:8.0]) => R0[:8.0]
END
P2 max (V0[:8.0],V1[:8.0]) => R0[:8.0]
V0[:8.0] => Z1[:8.0]
(Z1[:8.0] < V1[:8.0]) -> V1[:8.0] => Z1[:8.0]
Z1[:8.0] => R0[:8.0]
END
See http://en.wikipedia.org/wiki/Plankalkcül
JavaScript equivalent follows
*/
function max3(v0, v1, v2)
{
var z1;
z1 = max(v0, v1);
z1 = max(z1, v2);
return z1;
}
function max(v0, v1)
{
var z1;
z1 = v0;
if (z1 < v1)
{
z1 = v1;
}
return z1;
}
// Try functions out
document.write('The maximum of 2, 3 and 1 is ' + max(2, 3, 1));
</SCRIPT>
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