Book Cover for 'The Leftover Girl'
Planet
Su Ying
Marta
Han
Pseudo-crustacean
Jorja
Nurse G
Planet Surface (Detail)
Priya
The Dome (detail)
Book Cover for 'A Children's Crusade'
Senhora Daguia
Rai
Pseudo-shrubs (detail)
Alphane life (detail) , dome in distance

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Month: January 2021

Modern unicorns part two: Nuclear Fusion

Modern unicorns part two: Nuclear Fusion

It’s a truism that nearly all the news about real life is bad these days. As if to compensate, the media seem to be turning in desperation to increasingly speculative subject matter, presumably in an attempt to boost morale and have something positive to talk about.

In my last post I referenced the stream of stories about Martian colonisation plans which currently infest the popular media. In this post I will cover the other ‘positive science news story’ that virtually every periodical (or at least, all the ones that feature in Google News) is now pushing, namely nuclear fusion.

The line that perennially introduces the subject of fusion power is that it is ‘thirty years away’, in fact it has been thirty years away for the whole of my adult life. It has also been the subject of constant reinterpretation and misinformation, a prime example being the fallacies perpetrated by the advocates of so-called cold fusion in the late 1980’s. Fusion has a tendency to lie low for decades, but like Dracula rising from his grave, will always return when least expected, or wanted.

One of those times is now… 

The current attempts to develop nuclear fusion as a ‘reliable power source’, are characterised by the following; on the one hand, vast amounts of money spent by Governments who really ought to know better, building huge white elephant projects that suck in huge amounts of energy (as well as cash), without giving anything back. On the other, lone ‘geniuses’ working small-scale projects in obscure research institutions, making the same sort of extravagant claims as the proponents of cold fusion. The result is always the same; at best, fusion that lasts for nanoseconds and no prospect of anything approaching commercially-viable electricity generation. 

One side side of me (the Romantic side) hopes that I’m wrong and one these lone geniuses will get it right, the rational side knows this a chimera, and the lone geniuses are in fact the modern equivalent of Medieval alchemists, doomed to spend their lives trying to transmute their base metal into gold.

The fact that any of this gets house room, let alone endless column inches promoting highly-speculative claims, tells us rather more about our current society than the credibility of the fusion lobby.

It tells us we have an obsession with the notion of genius, and of genius (sic) solutions. These are often promoted as hacks (or tricks), i.e. shortcuts that will enable us to solve difficult and intractable problems. As such, they appeal strongly to generations with limited patience and rather short attention spans.

Even a cursory reading of history tells us that these sorts of attitudes have prevailed in the past, usually in times of rapid technological change (the 1880’s and 90’s spring to mind), when even the highly-educated begin to lose track of the giddying pace of change and start to see science as a source of magical solutions. This particular zeitgeist is, of course, ripe for exploitation by charlatans.  

There are however, underlying all of this, some even more fundamental notions:

1, that more tech is the solution to everything

2, that technology is always the solution to existing problems, never the cause of fresh ones

3, that endless economic growth is both possible and desirable

Recent history gives the lie to the first two; one only has to look at the intractable problem of storing the by-products of nuclear fission, waste that will remain deadly for thousands of years; at the non-biodegradable plastics filling our oceans; and to the dangerous climate change being unleashed by releasing millions of years of stored carbon through the burning of oil and gas.

The fallacies inherent in the last statement are nicely illustrated by the recent claim that ‘a population of trillions can be supported off-world by exploiting the resources of the Asteroid Belt!’

When it comes down to it, this guff is ideological and quasi-religious; advocated by people who propose spreading the Abrahamic notions of the Old Testament (‘…thou shalt have dominion over the Earth’, etc) throughout our Solar System and beyond.  

As, like a plague of technological locusts, we seek to consume and destroy everything within our reach.

The Author  January 2021

Modern unicorns part one: Martian Colonisation

Modern unicorns part one: Martian Colonisation

Have you noticed how the Tech Billionaires (aka the Robber Barons de nos jours) have adopted some of the presentational strategies of the New Right Populists? Specifically, they overpromise, an example being SpaceX’s recent assertion that they will have a Martian colony (or at least the groundwork for such a thing) in place by 2024! 

Further examination of other less hi-profile pronouncements reveals that the true timetable is sometime in the 2030’s, but the high-profile announcement has done its job by creating a buzz around the whole endeavour, attracting the attention of  tabloid and social media, and making said Tech Billionaire look potent and sexy. 

We may well be closer to having the technical capability for sending this kind of probe to Mars, however I did read that the sheer mass of the thing means that getting into orbit, and off to the Red Planet with the necessary velocity, is currently not possible.

Furthermore, the real problems come later: achieving re-entry for such a large vehicle (even though we’re only talking about a lander) through the virtually non-existent Martian atmosphere will be Hellishly-difficult. Remember, at least half of Martian landings of unmanned vehicles have been unsuccessful, we only recall the successes. Splattering a probe across the Martian landscape may be unfortunate if it’s unmanned, but if it contains 4-6 brave astro/cosmonauts, the fallout will be much more serious. 

But the first challenging issue will be getting those 4-6 brave astronauts there alive and in any fit condition to do useful work. It takes (with current technology) six months to get to Mars, that’s six months in microgravity which is really harmful to human physiology, six months confined in a space no bigger than a long-wheelbase Ford Transit van, exposed to potentially deadly radiation (not just solar flares which are a low probability risk, but cosmic rays which are ever present!). 

It’s estimated that the astronauts will receive 70% of their safe lifetime dosage just getting to Mars, not to mention all the other health problems they will arrive in Martian orbit with, and then they’ve got re-entry to face!

I recently read this online article with an accompanying promotional video about an award-winning design for a Martian city, cunningly cut into the walls of a suitable cliff, so that the human (and animal) inhabitants, and the various trees and shrubs, have access to Martian daylight, while being protected by the rock above them from all that nasty U/V radiation and pesky cosmic rays.

The settlement looked very swish, but the article glossed-over the whole issue of who’s going to construct it. Now in my SF saga, Lights in the sky, the Alpha Probe has all those convenient self-aware humanoid robots to do the heavy lifting, and Alpha 5 is a considerably less hostile analogue of the Red Planet. But building this putative Martian city will require the early colonists to leave the sanctuary of the subarean caverns and be out on the Martian surface. Now the Martian surface is a very hostile environment; the atmosphere is tenuous at best, contains no oxygen (and virtually no water vapour), the place is cold, and the thin atmosphere and lack of a magnetic field means anything (or anybody) out there is bombarded by harmful radiation. So human operators, directing and operating the digging and construction equipment, will be at considerable risk and only able to work for short periods of time.

As I read through the article, I clocked some of the small print. The people living in this city of the future would be obliged to pay 300,000 Euros for a one-way ticket to Mars, and would then need to give 60-80% of their time (during their waking hours, presumably) working for the colony.

I thought about it and I realised there’s a word for this, and a colonial precedent; it’s called indentured servitude, and it was used by the British in Jamaica and Virginia to recruit a workforce for their sugar and tobacco plantations. It worked like this; get a load of destitute people from England, Ireland, Scotland or Wales (not hard to find in seventeenth century Britain) and pack them off to the West Indies or to Virginia on twenty year contracts. Historical sidebar: this practice is the reason there are Welsh-speaking people in Jamaica to this day.

But this model, while initially effective, only really worked in the short term. Two things did for it:

  1. much of the enormous profit made from sugar and tobacco was reinvested back in Britain, and the resultant industrial revolution provided enough work for the landless and destitute former peasants, who no longer had to risk twenty years in a mosquito-ridden Hellhole to avoid starvation.
  2. word had got back from the New World about how bad conditions actually were, and how surviving five years was good going, while seeing out all twenty of your indenture highly unlikely.

The next was entirely predictable in its awfulness; replace the reluctant indentured servant with African slaves who had no choice. I wonder who the Tech Billionaires will turn to when their supply of willing colonists dries up?

The Author   January 2021