Archive for the 'Engineering' Category

Nov 20 2008

Links o’ the day 20/11/08

Dilbert.com

China’s output per head of population is smaller than Albania’s. Except China could probably buy swathes of the planet.

Wooly mammoth DNA decoded. Am I the only one who wants to see this species roam the Earth again?

A gallery of the greatest conspiracy theories.

Prices at Dubai’s Palm developments are down 40% to a paltry $2.7m.

Vive la France (in digital library terms at least).

It seems 21% of Americans can’t find the Pacific Ocean on a map. On the plus side, 94% can find the US.

The fakir who was buried alive for 40 days.

No responses yet

Nov 13 2008

Energy islands

It is one of those ideas that is so obvious it is difficult to imagine why somebody did not think of it sooner: a floating rig that collects wave, solar, thermal and wind energy.

One of these hexagonally-shaped islands could generate 250 megawatts (enough power for a small city), Michaelis said. Even more power is possible by mooring together several Energy Islands into a small archipelago that could include greenhouses for food, a small harbor for ships and a hotel for tourists.

Although the focus is on using the other technologies to help ocean thermal energy conversion, I think the idea could have plenty of merit even without this. It won’t be cheap, at about $600m per energy island, but it could pay for itself through desalinisation or aquaculture.

It would be important to ensure that such facilities do not interfere with marine life: with so many fish species already threatened, it would be stupid to run the risk of further depopulation (although I confess ignorance of fish stocks in tropical waters). There are also a great many dead zones in world waters, and I would be concerned that the pumping up of so many nutrients could create new ones; I’m sure such possibilities will be dealt with if such projects get funding.

It’s also unclear how far offshore these islands would be: too close, and public opinion will be against populating pretty sea views with technology.

No responses yet

Nov 03 2008

Moroccan merge

Published by David O'Mahony under Africa,Engineering,UAE

The Moroccan cities of Rabat and Salé are inching ever close to becoming one, a project 800 years in the making if you’re feeling poetic, two years if you’re feeling realistic.

Either way, it’s a fairly huge undertaking and an indication of how urban sprawl and economic necessity can bring about major changes in the demographic and political spheres. It isn’t one absorbing the other through growth and authority — I’m sure we all know at least suburb that has become part of a city proper in our lifetimes — but an indication of how highly the government considers having a capital that’s big enough to compete on both economic and prestige fronts.

And what interests me as well is that Morocco either had an inkling of a global recession, or were simply prudent enough to cover the possibility: it has a $3.25bn emergency fund in case investors pull out of the project.

Morocco broke ground on the US$4 billion Bouregreg project in 2006 and plans to complete major work in 2010. New breakwaters have appeared, the estuary sports a new marina and corniche, and the grinding of heavy machinery echoes through Rabat as workers lay rails for a tram system spanning the river.

The river flats will be covered in swish new houses and business parks, and resort hotels will stud the coastline. UAE firms Sama Dubai and Sorouh Real Estate are supplying investment and building expertise, but the government promises Moroccans that their capital will not become a Gulf-style megalopolis.

I’m not sure if it will be called Rabat or Bouregreg, after the river that flows between the two cities. I’m just fascinated by urban transformation.

It’s not the first example of cities merging — there’s Budapest — but it’s one of the bigger ones in recent history, perhaps even the biggest if my memory is accurate. I also like motivation behind it; whereas Budapest was formed from three cities to be the capital of Hungary, in Morocco it is a natural progression, as the two cities are quite intertwined as it is.

No responses yet

Oct 30 2008

Hallowe’en links and more

Hallowe’en pumpking carving with robotics (Slashdot, pic via there as well)

Looking for a Hallowe’en scare? Try the latest video games (Reuters)

Ten horror hoaxes that spooked the masses (The Daily Telegraph)

DIY Hallowe’en projects (Lifehacker)

Researchers build “haunted” room (BoingBoing)

And now time for some music.

The Misfits – Scream

[youtube]http://www.youtube.com/watch?v=td-QoYceevk[/youtube]

Lordi – Hard rock Hallelujah

[youtube]http://www.youtube.com/watch?v=TdItwaLrv1U[/youtube]

Cradle of Filth – No Time to Cry

[youtube]http://www.youtube.com/watch?v=wokDxDt504g[/youtube]

And a horror of a different kind: Jan Terri – Losing You

[youtube]http://www.youtube.com/watch?v=OE2l6CPna4M[/youtube]

One response so far

Sep 25 2008

Space talk

NASA is making all the right noises, with its chief, Michael Griffin, again asserting that space exploration is key to human survival. Good luck getting the cash for that one.

His vested interest is apparent and, given the environmental damage that has been wrought to Earth, he may have a point. But then again it’s NASA’s 50th anniversary, so we should expect him to promote the overall endeavour.

“As we move out in our solar system, expanding human presence, we can’t prove what we will find will be useful.

“It was understood in Columbus’s time that if voyagers discovered new lands they would find valuable things. We can’t prove today that we can exploit what we find to the benefit of humankind.”

However, in the long run, Griffin believes “human populations must diversify if it wishes to survive.”

To be fair, he has a point. The greater the number of human populations, the greatert the chance that the species will, in some form, survive. The Moon is the obvious candidate, followed by Mars; you don’t have to be a science-fiction fan to figure that out. Though conditions will be far from luxurious, at least to begin with, even a few thousand people on each body will aid our ultimate chances of survival.

Complete terraforming is well beyond our grasp, although for a snapshot of something we could do regarding the Moon, read Moonseed by Stephen Baxter. Kim Stanley Robinson’s substantial Mars series is a hard science look at the transformation of the Red Planet.

Closer to terra firma, Griffin is also adamant that he does not see China as a competitor in space exploration. He may come to regret his words, which come the same week that China prepared for its as China launches its riskiest orbital mission yet, including its first space walk.

It would not be in Griffin’s best interests to praise the Chinese project, even if it could eventually see the Asian nation launch and complete its own space station in the near future. The space walk is pivotal for developing the expertise to snap the thing together.

No responses yet

Nov 03 2007

Links o’ the day

The next Microsoft. Robert Cringely looks at “where Google is screwing up, why, and what they should do about it”.

‘Cool City’ to save 60% of its energy. A Japanese team wants to build an environmentally sound city in the UAE.

VerseDay: The macabre and fantastic in verse. I’ve never linked to poetry before, so get it while it’s going.

How to argue productively. It’s possible, apparently.

Make your own lifesize Jabba the Hutt. Oh come on, who hasn’t wanted this?

And the Super Mario theme, remixed for your hardcore pleasure:

[youtube]http://www.youtube.com/watch?v=m3PeTItQi-8[/youtube]

No responses yet

Oct 10 2007

Links o’ the day

Two out of three Irish who surf the net log onto social networking sites. They’re bloody addictive. (Irish Examiner)

The future of news: rational business decisions. Some US publications are making the conscious decision to scale back on some services because it costs too much per subscriber — with consequences for the quality of journalism. (Scholars and Rogues)

The Kennewick Men. Catholicgauze continues his look at the pre-Columban settlers of North America with a post on Kennewick Man, who was of Caucasoid rather than paleo-Indian origin.

Band releases album on floppy disk. It’s 74 minutes of music compressed to fit into 1.44mb. (PC Pro)

Egypt plan to green Sahara desert stirs controversy. Well it was grassland and forest a few thousand years ago… though it may deplete already sparse water sources. (Reuters)

One response so far

Sep 04 2007

Abode of Kings

Disposable Words has uploaded the first pictures I (and quite possibly the world) has seen of Naypyidaw, the new capital of Myanmar. The nation’s military government has never fully explained the 230km move from the old colonial capital of Yangon (Rangoon), although I seem to recall talk of it being more difficult for America to attack. The city, the name of which means “abode of kings” is still under construction. The photos have been up since June but I only stumbled across them now… better late than never.

Naypyidaw: Abode of Kings in a Derelict Kingdom.

No responses yet

Sep 01 2007

Next stop: the Moon

Russia plans to start building a base on the Moon by 2027. It aims to land cosmonauts in 2024 and have the facility finished and staffed by 2032.

The former superpower had suggested being part of a joint expedition with NASA, but after this was apparently rejected — although the US agency said in April that it had not received any such proposal — the decision was taken to go solo.

The first step will be finishing work on the ISS, followed by refurbishment of the Soyuz craft. How cosmonauts are going to get to the Moon has gone unmentioned. It might be using thisKliper craft, but there’s just as likely no plan in place at all.

Unless the government rows in behind the federal space agency, Roskosmos, this proposal will never get off the ground (pun, dire as it was, most certainly intended). The agency only has an annual budget of $1.3bn, compared to NASA’s $16.8bn.

In 2005, NASA estimated its coming lunar programme could cost $104bn over 13 years (Apollo cost half that over eight). There’s no reason Russia can’t come up with a way of doing it more cost-efficiently, but doing it on the current budget seems idealistic at best.

It will inevitably turn to space tourism to raise funds. Five have flown so far — each paying $20m-$25m a pop — and one Russian gentleman is set to go into orbit in 2009. It also charges NASA somewhere in the region of $20m per person per flight on its Soyuz capsules to the space station.

Roskosmos chief Anatoly Perminov has said launches of foreign satellites and other commercial services are expected to generate $800 million in sales for Russia’s national space and rocket industry in 2008. This would be useful hard cash for a lunar programme, especially with the timeframe the agency has in mind. It’s unlikely to be enough though.

Collaboration would be the easiest and most efficient avenue to take, but without NASA on board that seems dead in the water. Russia is considering developing satellites and such with several Arab countries, but it’s fair to say these do not have sufficiently developed space programmes to be technically useful in a lunar expedition. However, that doesn’t mean they can’t contribute financially.

Russia isn’t the only nation with the Moon in its sights. China — which sees a successful space programme as a major tool in establishing its international reputation and prestige — and Japan are planning lunar flights by 2022 and 2025, while India might steal a march on both with a mission by 2020.

India is to spend $1.5bn over five years developing the requisite technology, and what it can achieve in this timeframe and on this budget will indicate if Russia can achieve its goals.

Ultimately, the more resources dedicated to lunar exploration and occupation the better. Earth won’t last forever…

No responses yet

Aug 15 2007

Fuel to eradicate poverty

Jacques Diof, director general of the UN Food and Agriculture Organisation, feels the bioenergy sector has the potential to drastically reduce hunger and poverty.

If we get it right, bioenergy provides us with a historic chance to fast-forward growth in many of the world’s poorest countries, to bring about an agricultural renaissance and to supply modern energy to a third of the world’s population.

It’s a bold claim, but he’s got the background for us to take him seriously. In the article he sets out three things which need to be addressed for bioenergy to have the desired effect: lowering of trade barriers against ethanol imports, ensuring smallhold farmers can organise themselves to produce the biofuels on a large scale, and certification to ensure bioenergy products meet environmental standards.

I like the last point. One of the arguments against biofuels — particularly ethanol — is that it will result in more forestry clearance etc to allow more crops such as corn to be grown. As the soil in the Amazon rainforest is generally poor and quickly washed away once the trees are removed, ensuring the products meet environmental standards will have a beneficial effect on ecosystems.

I have also come across articles and news reports claiming ethanol isn’t as clean a fuel as commonly thought, largely because it takes more energy to produce a litre of ethanol than it does to produce a litre of oil. However, I would argue that this is because companies have had more time to refine oil production.

Diof says his three measures

would allow developing countries – which generally have ecosystems and climates more suited to biomass production than industrialised nations, and often have ample reserves of land and labour – to use their comparative advantage.

A fair and sound point in terms of economics, and the core of his argument that bioenergy can reduce poverty and hunger. Creating a valuable trade resource for less developed countries would not only foster economic self-sufficiency but generate wealth for better public and private services that a wider population base can afford.

Diof continues:

To focus debate exclusively on bio­fuels for transport is therefore to miss much of the point about bioenergy’s potential for poverty reduction. This lies more in helping 2bn people to produce their own electricity and other energy needs than in keeping 800m cars and trucks on the road… Helping 2bn people living on less than two dollars a day switch to affordable, homegrown, environmentally sustainable bio-power would represent a quantum leap in their development.

He’s thinking on a grand scale, and for that I applaud him. However, I am not convinced his dream will become a reality. Diof has urged the formation of an international bioenergy market and unless this happens in a balanced and fair way it will be dominated by existing major trade powers.

If that happens the potential benefits for less developed countries will be hindered, though not necessarily eliminated. We may face into a situation similar to that regarding chocolate and coffee production, where small sums are paid to farmers in poorer countries and the refined goods sold on for significant profits.

I’m not advocating some sort of global socialist approach to bioenergy. What I would urge, though, is that the governments of developing countries ensure they have a major role to play in the formation of an international market. This could go a long way toward using bioenergy wealth for the good of people who need it rather than corporate enrichment — although I’m not naive enough to suggest such enrichment won’t happen.

While we’re on the subject of alternative fuels, take a look at these pictures from CNet. They show a system of wave-power buoys that’s being installed off the coast of Oregon, USA.

Meanwhile, Spiegel Online is reporting that the rise of biofuels is threatening the humble gummy bear because a rise in crop prices threatens to jack up the price. I kid you not.

No responses yet

Next »