Chaos theory. The butterfly effect.

Today I’m going to talk about “sensitive dependence on initial conditions”, which is one of the foundations of chaos theory.

Chaos theory. I find it a fascinating subject to talk about, so here goes. Some people (me included!) can be really confused by the mathematics that is involved. So I’m not even going to put up a single formula here. Some people can’t seem to fathom how the flap of a butterfly’s wings in Brazil can set off a tornado in Texas.”

I’m just going to explain the concept to you. How can I best explain this something called “sensitive dependence on initial conditions”? Easy.

I want you to think of a single marble on top of a mountain peak like the Matterhorn. Imagine if we placed a marble way up there on the very highest point.

Now imagine, too, if an abnormal amount of snow had built up over the previous winter and there is now the possibility of a great big avalanche. And you all know how avalanches are caused, right?

Avalanches are initiated by too much snow that accumulates on the side of a mountain. Even the smallest rock moving can set it off. Even the force of the snow melting in the sun can change the distribution of weight of built up snow on a slope.

We all know that the marble might dislodge a slightly bigger rock on its way down, thus causing an avalanche. So we have a situation where a very small physical event like a marble falling down could potentially generate a much larger event like an avalanche at the bottom of the mountain. Well ‘okay’ you might say.

Now this is just where it becomes interesting. Because the slightest change in the way we placed that single marble down onto the summit might have caused it to fall one way or another. Or the slighest breeze in one direction or the other. Or some small feature on the surface of the rock on which it is placed. [Read more…]

Our environmental footprint

Most of the global economy is based on the idea of selling physical products. And if you’re not selling something yourself, your clients are people that do.

B I’ve noticed that in some environmental discussions and debates, Westerners automatically assume that their country is less polluting than poorer countries. I don’t think pointing the finger at China really helps. And here’s why:

I think our blatant consumerism in the West doesn’t compare favourably to the third world, because all of the things that we buy have a kind of “environmental footprint” if you like. And note that I’m not even really talking about CO2 emissions here (even though the US carbon emission per capita is 17.56 metric tons while that of China is ‘only’ 6.19 metric tons per capita). Carbon is not the only element on the periodic table although it is the one that goes into the atmosphere more than the others.

If China pollutes rivers or whatever making loads of stuff for the West, who is really doing (causing) the polluting? The chinese manufacturers? Or is the Western consumer demand for those products ultimately to blame?

My main backround if materials science. One of the more eye-opening subjects I found out about (in terms of environmental degradation) is called “extractive metallurgy”. Extractive metallurgy is the study of chemical processes that we use to extract an refine metals from their ores. Basically, in a nut shell, all materials have to come from somewhere. Ususally it’s either the Earth’s crust itself or sea water.

In most of the processes, you need either need huge amounts of electricity and/or high temperatures and/or huge amounts of other chemicals to obtain the desired elements and/or compounds.

For example, here is just one of the many steps in the refinement of germanium:

GeO2 + 4 HCl → GeCl4 + 2 H2O

In this step, the reactive gas chlorine is being used to make germanium more reactive. So chlorine, which is toxic, is used in one of the processes to extract the element germanium from its oxide. Okay.

And here is just one of the steps in tellurium refinement:

HTeO−3 + OH + H2SO4 → TeO2 + SO2−4 + 2 H2O

In this step, sulfuric acid is being used to make tellurium more reactive. Okay.

And where are germanium and tellurium being used you ask? They are two semiconductors that are the basis for integrated circuits and other electronic components in all sorts of electronic devices. Not so good.

In fact, many other nasty chemical compounds are used in the extraction, refinement and manufacturing industries. Many others.

I’m not 100% sure, but I think the worst offenders are the electronic consumer devices, simply because they contain the most number of hard-to-extract elements. The harder-to-extract elements require more chemical treatment steps. That’s just one of the reasons why they these elements are so expensive (not just that they’re rare). In fact I can probably go so far as to invent a new theory, which goes something like this: “the higher the unit price of an element, the more damaging its extraction process is to the environment.” But I digress…

Here’s the thing. There are a lot of chemical elements used in computers and extracting them from the ground and processing them taxes the environment (especially when you consider all of the planned obsolesence we see today). Our current way of life creates more and more electronic waste that cannot be recovered or recycled (except perhaps the gold bits)

I recently asked a few questions on Quora and I’d like to share those questions and answers with you now. Listed here are some of the toxic chemicals and semiconductors that are used in electonic decices. Go on, take a look. Can you begin to see how big the problem is now?

The point is, nasty chemicals are used at all steps of the extraction and refinement process. We just don’t ever see them being used in industry. Oh but they’re there alright. They’re being used all the time.

Suffice it to say that if Westeners think they pollute the Earth less than a typical 3rd-worlder, in my eyes, they are sorely mistaken. [Read more…]

Discrimination is second nature.

Every time you select a piece of fruit, based on the condition of its skin, you’re judging the contents.

No one likes to eat a soggy banana or a rotten apple. We’ve come to learn that if a banana is bruised & blackened on the outside, inside is most likely a soggy fruit mush.

Even 3 year old children know the difference is in the taste. They won’t eat it. Although sometimes, despite multiple bruises and other exterior imperfections, the interior is not as bad as we think; we are rewarded by what we find inside – 100% intact fruit! Succulent, delicious. Generally though, after years of practice, we learn to judge fruit correctly…

There are two ways of describing this situation:

  1. Some might say I am discriminating against all fruit with a certain type of skin (be it the colour or the texture); I am pre-judging, I am being critical.
  2. Others might say that I have a distinguished, discerning or refined sense of taste; I am a perceptive, particular and sensitive person.

One of these sentences contains positive statements whilst the other definitely has negative connotations. Clearly, something is wrong, and I think you’ll easily spot the pattern in the words below-

Synonyms for the adjective “discriminating”:

analytical, astute, authentic, canny, careful, choosy, clever, correct, cultivated, defined, definite, detailed, discerning, distinct, distinctive, distinguish, eclectic, exacting, exact, explicit, genuine, incisive, ingenious, insightful, intuitive, factual, faithful, fastidious, finicky, fussy, judicious, just, keen, literal, methodical, meticulous, observant, particular, picky, proper, prudent, refined, right, rigorous, scientific, scrupulous, selective, sensitive, skillful, smart, specific, strict, subtle, systematic, tasteful, true, unerring, unmistakable, veracious, wise.

Synonyms for the verb “to discriminate”:

assess, be bigot, brand, categorise, classify, collate, compare, contrast, delineate, designate, differentiate, discern, draw distinction, evaluate, extricate, disfavor, favor, hate, incline, judge, pigeonhole, know, note, be partial, perceive, portray, remark, segregate, separate, set apart, show bias, single out, specify, split hairs, tell apart,treat differently, typecast, victimize.

So we can describe someone as being discriminate or discriminating, but the act of discriminating against something without enough knowledge is forbidden.

Whenever you turn on the radio and choose a station you are being prejudiced towards new music styles and discriminating against them by not listening. I prefer cotton over wool, because I’ve found that wool makes my skin itch. Am I biased towards cotton plants or racist (specist) against sheep? Whenever anyone thinks about making any kind of informed decisions, discrimination is second nature.

[Read more…]

The problem with science

I think the problem is not with science, but with the entire 1st world civilisation.

Science is great and I don’t fundamentally disagree with any of it – but it doesn’t have any guiding moral or ethical principles. One problem with science right now is that scientists invent things without thinking through all of the possible consequences. And then some kind of “revenge effect” inevitably bites them in the arse later on down the track.

Another big problem is that businesses can take hold of any scientific discoveries and innovations they feel like and just exploit them for all they are worth.

So we know that this society will all too willingly absorb any new scientific knowledge into profitable new enterprises. Well ok – not so big a deal you might say – and it’s not. That’s the benefit of science. Right? Yes.

But then when those same scientists turn around and say: “No, now you are all going to have to change the way you do things, because we’ve figured out that this is not a sustainable industry” or “it turns out there’s this horrible side-effect”, no one listens. Not the people working for the industries, nor the people buying products from whatever those industries happen to sell.

So basically everyone is using the results of science whenever it suits them, and they are not heeding many of the warnings that science is giving…

People willingly accept, take and use the scientific discoveries. But the very same people never as willing to relinquish those very same inventions. Are they? [Read more…]

Best Printers for Publishing Card-Stock & Other Substance

Interaction is obviously one of many http://essay-company.co.uk/ most important and critical tactical aspects of an organization’s success. You could have most impressive products or the most effective or services, if your interior and external communications are poor, then a need for your products or services improves a personal banner of concern. When interacting the worth of services or your products, you would like to focus on how they will reward your clients. [Read more…]