Category Archives: materials

Advanced land, sea, air and space transport technologies

I’ll be speaking at the Advanced Engineering conference in Helsinki at the end of May. My topic will be potential solutions for future transport, covering land, sea, air and space. These are all areas where I’ve invented new approaches. In my 1987 BT life as a performance engineer, I studied the potential to increase road capacity by a factor of 5 by using driverless pod technology, mimicking the packet switching approach we were moving towards in telecomms. This is very different from the self-driving systems currently in fashion, because dumb pods would be routed by smart infrastructure rather than having their own AI/sensor systems, so the pods could be extremely cheap and packed very closely together to get a huge performance benefit, using up to 85% of the available space. We’re now seeing a few prototypes of such dumb pod systems being trialled.

It was also obvious even in the 1980s that the same approach could be used on rail, increasing capacity from today’s typical 0.4% occupancy to 80%+, an improvement factor of 200, and that the same pods could be used on rail and road, and that on rail, pods could be clumped together to make virtual trains so that they could mix with existing conventional trains during a long transition period to a more efficient system. In the early 2000s, we realised that pods could be powered by induction coils in the road surface and more recently, with the discovery of graphene, such graphene induction devices could be very advantageous over copper or aluminium ones due to deterrence of metal theft, and also that linear induction could be used to actually propel the pods and in due course even to levitate them, so that future pods wouldn’t even need engines or wheels, let alone AI and sensor systems on board.

We thus end up with the prospect of a far-future ground transport system that is 5-15 times road capacity and up to 200 times rail capacity and virtually free of accidents and congestion.

Advanced under-sea transport could adopt supercavitation technology that is already in use and likely to develop quickly in coming decades. Some sources suggest that it may even be possible to travel underwater more easily then through air. Again, if graphene is available in large quantity at reasonable cost, it would be possible to do away with the need for powerful engines on board, this time by tethering pods together with graphene string.

Above certain speeds, a blunt surface in front of each pod would create a bubble enclosing the entire pod, greatly reducing drag. Unlike Hyperloop style high-speed rail, tubes would not be required for these pods, but together, a continuous stream of many pods tethered together right across an ocean would make a high-capacity under-sea transport system. This would be also be more environmentally friendly, using only electricity at the ends.

Another property of graphene is that it can be used to make carbon foam that is lighter than helium. Such material could float high in the stratosphere well above air lanes. With the upper surface used for solar power collection, and the bottom surface used as a linear induction mat, it will be possible to make inter-continental air lines that can propel sleds hypersonically, connected by tethers to planes far below.

High altitude solar array to power IT and propel planes

As well as providing pollution-free hypersonic travel, these air lines could also double as low satellite platforms for comms and surveillance.

As well as land, sea and air travel, we are now seeing rapid development of the space industry, but currently, getting into orbit uses very expensive rockets that dump huge quantities of water vapour into the high atmosphere. A 2017 invention called the Pythagoras Sling solves the problems of expense and pollution. Two parachutes are deployed (by small rockets or balloons) into the very high atmosphere, attached to hoops through which a graphene tether is threaded, one end connected to a ground-based winch and the other to the payload. The large parachutes have high enough drag to act as temporary anchors while the tether is pulled, propelling the payload up to orbital speed via an arc that renders the final speed horizontal as obviously needed to achieve orbit.

With re-usable parts, relatively rapid redeployment and only electricity as power supply, the sling could reduce costs by a factor of 50-100 over current state of the art, greatly accelerating space development without the high altitude water vapour risking climate change effects.

The winch design for the Pythagoras Sling uses an ‘inverse rail gun’ electromagnetic puller to avoid massive centrifugal forces of a rotating drum. The inverse rail gun can be scaled up indefinitely, so also offers good potential for interplanetary travel. With Mars travel on the horizon, prospects of months journey times are not appealing, but a system using well-spaced motors pulling a graphene tether millions of km long is viable. A 40,000 ton graphene tether could be laid out in space in a line 6.7M km long, and using solar power, could propel a 2 Ton capsule at 5g up to an exit speed of 800km/s, reaching Mars in as little 5-12 days.

At the far end, a folded graphene net could intercept and slow the capsule at 5g  into a chosen orbit around Mars. While not prohibitively expensive, this system would be completely reusable and since it needs no fuel, would be a very clean and safe way of getting crew and materials to a Mars colony.

 

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High speed transatlantic submarine train

In 1863, Jules Verne wrote about the idea of suspended transatlantic tunnels through which trains could be sent using air pressure. Pneumatic tube delivery was a fashionable idea then, and small scale pneumatic delivery systems were commonplace until the late 20th century – I remember a few shops using them to transport change around. In 1935, the film ‘The tunnel’ featured another high speed transatlantic tunnel, as did another film in 1972, ‘Tunnel through the deeps’. Futurists have often discussed high speed mass transit systems, often featuring maglev and vacuums (no, Elon Musk didn’t invent the idea, his Hyperloop is justifiably famous for resurfacing and developing this very old idea and is likely to see its final implementation).

Anyway, I have read quite a bit about supercavitation over the last years. First developed in 1960 as a military idea to send torpedoes at high speed, it was successfully implemented in 1972 and has since developed somewhat. Cavitation happens when a surface, such as a propeller blade, moves through water so fast that a cavity is left until the water has a chance to close back in. As it does, the resultant shock wave can damage the propeller surface and cause wear. In supercavitation, the cavity is deliberate, and the system designed so that the cavity encloses the entire projectile. In 2005, the first proposal for people transport emerged, DARPA’s Underwater Express Program, designed to transport small groups of Navy personnel at speeds of up to 100 knots. Around that time, a German supercavitating torpedo was reaching 250mph speeds.

More promising articles suggest that supersonic speeds are achievable under water, with less friction than going via air. Achieving the initial high speed and maintaining currently requires sophisticated propulsion mechanisms, but not for much longer. I believe the propulsion problem can be engineered away by pulling capsules with a strong tether. That would be utterly useless for a torpedo of course, but for a transport system would be absolutely fine.

Transatlantic traffic is quite high, and if a cheaper and more environmentally friendly system than air travel were available, it would undoubtedly increase. My idea is to use a long string of capsules attached to a long graphene cable, pulled in a continuous loop at very high speed. Capsules would be filled at stations, accelerated to speed and attached to the cable for their transaltlantic journey, then detached, decelerated and their passengers or freight unloaded. Graphene cable would be 200 times stronger than steel so making such a cable is feasible.

The big benefit of such a system is that no evacuated tube is needed. The cable and capsules would travel through the water directly. Avoiding the need for an expensive and complex  tube containing a vacuum, electromagnetic propulsion system and power supply would greatly reduce cost. All of the pulling force for a cable based system would be applied at the ends.

Graphene cable doesn’t yet exist, but it will one day. I doubt if current supercavitation research is up to the job either, but that’s quite normal for any novel engineering project. Engineers face new problems and solve them every day. By the time the cable is feasible, we will doubtless be more knowledgeable about supercavitation too. So while it’s a bit early to say it will definitely become reality, it is certainly not too early to start thinking about it. Some future Musk might well be able to pull it off.

Mars trips won’t have to take months

It is exciting seeing the resurgence in interest in space travel, especially the prospect that Mars trips are looking increasingly feasible. Every year, far-future projects come a year closer. Mars has been on the agenda for decades, but now the tech needed is coming over the horizon.

You’ve probably already read about Elon Musk’s SpaceX plans, so I won’t bother repeating them here. The first trips will be dangerous but the passengers on the first successful trip will get to go down in history as the first human Mars visitors. That prospect of lasting fame and a place in history plus the actual experience and excitement of doing the trip will add up to more than enough reward to tempt lots of people to join the queue to be considered. A lucky and elite few will eventually land there. Some might stay as the first colonists. It won’t be long after that before the first babies are born on Mars, and their names will certainly be remembered, the first true Martians.

I am optimistic that the costs and travel times involved in getting to Mars can be reduced enormously. Today’s space travel relies on rockets, but my own invention, the Pythagoras Sling, could reduce the costs of getting materials and people to orbit by a factor of 50 or 100 compared the SpaceX rockets, which already are far cheaper than NASA’s. A system introduction paper can be downloaded from:

https://carbondevices.files.wordpress.com/2017/09/pythagoras-sling-article.pdf

Sadly, in spite of obviously being far more feasible and shorter term than a space elevator, we have not yet been able to get our paper published in a space journal so that is the only source so far.

This picture shows one implementation for non-human payloads, but tape length and scale could be increased to allow low-g human launches some day, or more likely, early systems would allow space-based anchors to be built with different launch architecture for human payloads.

The Sling needs graphene tape, a couple of parachutes or a floating drag platform and a magnetic drive to pull the tape, using standard linear motor principles as used in linear induction motors and rail guns. The tape is simply attached to the rocket and pulled through two high altitude anchors attached to the platforms or parachutes. Here is a pic of the tape drive designed for another use, but the principle is the same. Rail gun technology works well today, and could easily be adapted into this inverse form to drive a suitably engineered tape at incredible speed.

All the components are reusable, but shouldn’t cost much compared to heavy rockets anyway. The required parachutes exist today, but we don’t have graphene tape or the motor to pull it yet. As space industry continues to develop, these will come. The Space Elevator will need millions of tons of graphene, the Sling only needs around 100 kilograms so will certainly be possible decades before a space elevator. The sling configuration can achieve full orbital speeds for payloads using only electrical energy at the ground, so is also much less environmentally damaging than rocketry.

Using tech such as the Sling, material can be put into orbit to make space stations and development factories for all sorts of space activity. One project that I would put high on the priority list would be another tape-pulling launch system, early architecture suggestion here:.

Since it will be in space, laying tape out in a long line would be no real problem, even millions of kms, and with motors arranged periodically along the length, a long tape pointed in the right direction could launch a payload towards a Mars interception system at extreme speeds. We need to think big, since the distances traveled will be big. A launch system weighing 40,000 tons would be large scale engineering but not exceptional, and although graphene today is very expensive as with any novel material, it will become much cheaper as manufacturing technology catches up (if the graphene filament print heads I suggest work as I hope, graphene filament could be made at 200m/s and woven into yarn by a spinneret as it emerges from multiple heads). In the following pics, carbon atoms are fed through nanotubes with the right timing, speed and charges to combine into graphene as they emerge. The second pic shows why the nanotubes need to be tilted towards each other since otherwise the molecular geometry doesn’t work, and this requirement limits the heads to make thin filaments with just two or three carbon rings wide. The second pic mentions carbon foam, which would be perfect to make stratospheric floating platforms as an alternative to using parachutes in the Sling system.

Graphene filament head, ejects graphene filament at 200m/s.

A large ship is of that magnitude, as are some building or bridges. Such a launch system would allow people to get to Mars in 5-12 days, and payloads of g-force tolerant supplies such as water could be sent to arrive in a day. The intercept system at the Mars end would need to be of similar size to catch and decelerate the payload into Mars orbit. The systems at both ends can be designed to be used for launch or intercept as needed.

I’ve been a systems engineer for 36 years and a futurologist for 27 of those. The system solutions I propose should work if there is no better solution available, but since we’re talking about the far future, it is far more likely that better systems will be invented by smarter engineers or AIs by the time we’re ready to use them. Rocketry will probably get us through to the 2040s but after that, I believe these solutions can be made real and Mars trips after that could become quite routine. I present these solutions as proof that the problems can be solved, by showing that potential solutions already exist. As a futurologist, all I really care about is that someone will be able to do it somehow.

 

So, there really is no need to think in terms of months of travel each way, we should think of rapid supply chains and human travel times around a week or two – not so different from the first US immigrants from Europe.

2018 outlook: fragile

Futurists often consider wild cards – events that could happen, and would undoubtedly have high impacts if they do, but have either low certainty or low predictability of timing.  2018 comes with a larger basket of wildcards than we have seen for a long time. As well as wildcards, we are also seeing the intersection of several ongoing trends that are simultaneous reaching peaks, resulting in socio-political 100-year-waves. If I had to summarise 2018 in a single word, I’d pick ‘fragile’, ‘volatile’ and ‘combustible’ as my shortlist.

Some of these are very much in all our minds, such as possible nuclear war with North Korea, imminent collapse of bitcoin, another banking collapse, a building threat of cyberwar, cyberterrorism or bioterrorism, rogue AI or emergence issues, high instability in the Middle East, rising inter-generational conflict, resurgence of communism and decline of capitalism among the young, increasing conflicts within LGBTQ and feminist communities, collapse of the EU under combined pressures from many angles: economic stresses, unpredictable Brexit outcomes, increasing racial tensions resulting from immigration, severe polarization of left and right with the rise of extreme parties at both ends. All of these trends have strong tribal characteristics, and social media is the perfect platform for tribalism to grow and flourish.

Adding fuel to the building but still unlit bonfire are increasing tensions between the West and Russia, China and the Middle East. Background natural wildcards of major epidemics, asteroid strikes, solar storms, megavolcanoes, megatsumanis and ‘the big one’ earthquakes are still there waiting in the wings.

If all this wasn’t enough, society has never been less able to deal with problems. Our ‘snowflake’ generation can barely cope with a pea under the mattress without falling apart or throwing tantrums, so how we will cope as a society if anything serious happens such as a war or natural catastrophe is anyone’s guess. 1984-style social interaction doesn’t help.

If that still isn’t enough, we’re apparently running a little short on Ghandis, Mandelas, Lincolns and Churchills right now too. Juncker, Trump, Merkel and May are at the far end of the same scale on ability to inspire and bring everyone together.

Depressing stuff, but there are plenty of good things coming too. Augmented reality, more and better AI, voice interaction, space development, cryptocurrency development, better IoT, fantastic new materials, self-driving cars and ultra-high speed transport, robotics progress, physical and mental health breakthroughs, environmental stewardship improvements, and climate change moving to the back burner thanks to coming solar minimum.

If we are very lucky, none of the bad things will happen this year and will wait a while longer, but many of the good things will come along on time or early. If.

Yep, fragile it is.

 

Artificial muscles using folded graphene

Slide1

Folded Graphene Concept

Two years ago I wrote a blog on future hosiery where I very briefly mentioned the idea of using folded graphene as synthetic muscles:

https://timeguide.wordpress.com/2015/11/16/the-future-of-nylon-ladder-free-hosiery/

Although I’ve since mentioned it to dozens of journalists, none have picked up on it, so now that soft robotics and artificial muscles are in the news, I guess it’s about time I wrote it up myself, before someone else claims the idea. I don’t want to see an MIT article about how they have just invented it.

The above pic gives the general idea. Graphene comes in insulating or conductive forms, so it will be possible to make sheets covered with tiny conducting graphene electromagnet coils that can be switched individually to either polarity and generate strong magnetic forces that pull or push as required. That makes it ideal for a synthetic muscle, given the potential scale. With 1.5nm-thick layers that could be anything from sub-micron up to metres wide, this will allow thin fibres and yarns to make muscles or shape change fabrics all the way up to springs or cherry-picker style platforms, using many such structures. Current can be switched on and off or reversed very rapidly, to make continuous forces or vibrations, with frequency response depending on application – engineering can use whatever scales are needed. Natural muscles are limited to 250Hz, but graphene synthetic muscles should be able to go to MHz.

Uses vary from high-rise rescue, through construction and maintenance, to space launch. Since the forces are entirely electromagnetic, they could be switched very rapidly to respond to any buckling, offering high stabilisation.

Slide2

The extreme difference in dimensions between folded and opened state mean that an extremely thin force mat made up of many of these cherry-picker structures could be made to fill almost any space and apply force to it. One application that springs to mind is rescues, such as after earthquakes have caused buildings to collapse. A sheet could quickly apply pressure to prize apart pieces of rubble regardless of size and orientation. It could alternatively be used for systems for rescuing people from tall buildings, fracking or many other applications.

Slide3

It would be possible to make large membranes for a wide variety of purposes that can change shape and thickness at any point, very rapidly.

Slide4

One such use is a ‘jellyfish’, complete with stinging cells that could travel around in even very thin atmospheres all by itself. Upper surfaces could harvest solar power to power compression waves that create thrust. This offers use for space exploration on other planets, but also has uses on Earth of course, from surveillance and power generation, through missile defense systems or self-positioning parachutes that may be used for my other invention, the Pythagoras Sling. That allows a totally rocket-free space launch capability with rapid re-use.

Slide5

Much thinner membranes are also possible, as shown here, especially suited for rapid deployment missile defense systems:

Slide6

Also particularly suited to space exploration o other planets or moons, is the worm, often cited for such purposes. This could easily be constructed using folded graphene, and again for rescue or military use, could come with assorted tools or lethal weapons built in.

Slide7

A larger scale cherry-picker style build could make ejector seats, elevation platforms or winches, either pushing or pulling a payload – each has its merits for particular types of application.  Expansion or contraction could be extremely rapid.

Slide8

An extreme form for space launch is the zip-winch, below. With many layers just 1.5nm thick, expanding to 20cm for each such layer, a 1000km winch cable could accelerate a payload rapidly as it compresses to just 7.5mm thick!

Slide9

Very many more configurations and uses are feasible of course, this blog just gives a few ideas. I’ll finish with a highlight I didn’t have time to draw up yet: small particles could be made housing a short length of folded graphene. Since individual magnets can be addressed and controlled, that enables magnetic powders with particles that can change both their shape and the magnetism of individual coils. Precision magnetic fields is one application, shape changing magnets another. The most exciting though is that this allows a whole new engineering field, mixing hydraulics with precision magnetics and shape changing. The powder can even create its own chambers, pistons, pumps and so on. Electromagnetic thrusters for ships are already out there, and those same thrust mechanisms could be used to manipulate powder particles too, but this allows for completely dry hydraulics, with particles that can individually behave actively or  passively.

Fun!

 

 

We need to stop xenoestrogen pollution

Endocrine disruptors in the environment are becoming more abundant due to a wide variety of human-related activities over the last few decades. They affect mechanisms by which the body’s endocrine system generates and responds to hormones, by attaching to receptors in similar ways to natural hormones. Minuscule quantities of hormones can have very substantial effects on the body so even very diluted pollutants may have significant effects. A sub-class called xenoestrogens specifically attach to estrogen receptors in the body and by doing so, can generate similar effects to estrogen in both women and men, affecting not just women’s breasts and wombs but also bone growth, blood clotting, immune systems and neurological systems in both men and women. Since the body can’t easily detach them from their receptors, they can sometimes exert a longer-lived effect than estrogen, remaining in the body for long periods and in women may lead to estrogen dominance. They are also alleged to contribute to prostate and testicular cancer, obesity, infertility and diabetes. Most notably, mimicking sex hormones, they also affect puberty and sex and gender-specific development.

Xenoestrogens can arise from breakdown or release of many products in the petrochemical and plastics industries. They may be emitted from furniture, carpets, paints or plastic packaging, especially if that packaging is heated, e.g. in preparing ready-meals. Others come from women taking contraceptive pills if drinking water treatment is not effective enough. Phthalates are a major group of synthetic xenoestrogens – endocrine-disrupting estrogen-mimicking chemicals, along with BPA and PCBs. Phthalates are present in cleaning products, shampoos, cosmetics, fragrances and other personal care products as well as soft, squeezable plastics often used in packaging but some studies have also found them in foodstuffs such as dairy products and imported spices. There have been efforts to outlaw some, but others persist because of lack of easy alternatives and lack of regulation, so most people are exposed to them, in doses linked to their lifestyles. Google ‘phthalates’ or ‘xenoestrogen’ and you’ll find lots of references to alleged negative effects on intelligence, fertility, autism, asthma, diabetes, cardiovascular disease, neurological development and birth defects. It’s the gender and IQ effects I’ll look at in this blog, but obviously the other effects are also important.

‘Gender-bending’ effects have been strongly suspected since 2005, with the first papers on endocrine disrupting chemicals appearing in the early 1990s. Some fish notably change gender when exposed to phthalates while human studies have found significant feminizing effects from prenatal exposure in young boys too (try googling “human phthalates gender” if you want references).  They are also thought likely to be a strong contributor to greatly reducing sperm counts across the male population. This issue is of huge importance because of its effects on people’s lives, but its proper study is often impeded by LGBT activist groups. It is one thing to champion LGBT rights, quite another to defend pollution that may be influencing people’s gender and sexuality. SJWs should not be advocating that human sexuality and in particular the lifelong dependence on medication and surgery required to fill gender-change demands should be arbitrarily imposed on people by chemical industry pollution – such a stance insults the dignity of LGBT people. Any exposure to life-changing chemicals should be deliberate and measured. That also requires that we fully understand the effects of each kind of chemical so they also should not be resisting studies of these effects.

The evidence is there. The numbers of people saying they identify as the opposite gender or are gender fluid has skyrocketed in the years since these chemicals appeared, as has the numbers of men describing themselves as gay or bisexual. That change in self-declared sexuality has been accompanied by visible changes. An AI recently demonstrated better than 90% success at visually identifying gay and bisexual men from photos alone, indicating that it is unlikely to be just a ‘social construct’. Hormone-mimicking chemicals are the most likely candidate for an environmental factor that could account for both increasing male homosexuality and feminizing gender identity.

Gender dysphoria causes real problems for some people – misery, stress, and in those who make a full physical transition, sometimes post-op regrets and sometimes suicide. Many male-to-female transsexuals are unhappy that even after surgery and hormones, they may not look 100% feminine or may require ongoing surgery to maintain a feminine appearance. Change often falls short of their hopes, physically and psychologically. If xenoestrogen pollution is causing severe unhappiness, even if that is only for some of those whose gender has been affected, then we should fix it. Forcing acceptance and equality on others only superficially addresses part of their problems, leaving a great deal of their unhappiness behind.

Not all affected men are sufficiently affected to demand gender change. Some might gladly change if it were possible to change totally and instantly to being a natural woman without the many real-life issues and compromises offered by surgery and hormones, but choose to remain as men and somehow deal with their dysphoria as the lesser of two problems. That impacts on every individual differently. I’ve always kept my own feminine leanings to being cyber-trans (assuming a female identity online or in games) with my only real-world concession being wearing feminine glasses styles. Whether I’m more feminine or less masculine than I might have been doesn’t bother me; I am happy with who I am; but I can identify with transgender forces driving others and sympathize with all the problems that brings them, whatever their choices.

Gender and sexuality are not the only things affected. Xenoestrogens are also implicated in IQ-reducing effects. IQ reduction is worrying for society if it means fewer extremely intelligent people making fewer major breakthroughs, though it is less of a personal issue. Much of the effect is thought to occur while still in the womb, though effects continue through childhood and some even into adulthood. Therefore individuals couldn’t detect an effect of being denied a potentially higher IQ and since there isn’t much of a link between IQ and happiness, you could argue that it doesn’t matter much, but on the other hand, I’d be pretty miffed if I’ve been cheated out of a few IQ points, especially when I struggle so often on the very edge of understanding something. 

Gender and IQ effects on men would have quite different socioeconomic consequences. While feminizing effects might influence spending patterns, or the numbers of men eager to join the military or numbers opposing military activity, IQ effects might mean fewer top male engineers and top male scientists.

It is not only an overall IQ reduction that would be significant. Studies have often claimed that although men and women have the same average IQ, the distribution is different and that more men lie at the extremes, though that is obviously controversial and rapidly becoming a taboo topic. But if men are being psychologically feminized by xenoestrogens, then their IQ distribution might be expected to align more closely with female IQ distributions too, the extremes brought closer to centre.  In that case, male IQ range-compression would further reduce the numbers of top male scientists and engineers on top of any reduction caused by a shift. 

The extremes are very important. As a lifelong engineer, my experience has been that a top engineer might contribute as much as many average ones. If people who might otherwise have been destined to be top scientists and engineers are being prevented from becoming so by the negative effects of pollution, that is not only a personal tragedy (albeit a phantom tragedy, never actually experienced), but also a big loss for society, which develops slower than should have been the case. Even if that society manages to import fine minds from elsewhere, their home country must lose out. This matters less as AI improves, but it still matters.

Looking for further evidence of this effect, one outcome would be that women in affected areas would be expected to account for a higher proportion of top engineers and scientists, and a higher proportion of first class degrees in Math and Physical Sciences, once immigrants are excluded. Tick. (Coming from different places and cultures, first generation immigrants are less likely to have been exposed in the womb to the same pollutants so would not be expected to suffer as much of the same effects. Second generation immigrants would include many born to mothers only recently exposed, so would also be less affected on average. 3rd generation immigrants who have fully integrated would show little difference.)

We’d also expect to see a reducing proportion of tech startups founded by men native to regions affected by xenoestrogens. Tick. In fact, 80% of Silicon Valley startups are by first or second generation immigrants. 

We’d also expect to see relatively fewer patents going to men native to regions affected by xenoestrogens. Erm, no idea.

We’d also expect technology progress to be a little slower and for innovations to arrive later than previously expected based on traditional development rates. Tick. I’m not the only one to think engineers are getting less innovative.

So, there is some evidence for this hypothesis, some hard, some colloquial. Lower inventiveness and scientific breakthrough rate is a problem for both human well-being and the economy. The problems will continue to grow until this pollution is fixed, and will persist until the (two) generations affected have retired. Some further outcomes can easily be predicted:

Unless AI proceeds well enough to make a human IQ drop irrelevant, and it might, then we should expect that having enjoyed centuries of the high inventiveness that made them the rich nations they are today, the West in particular would be set on a path to decline unless it brings in inventive people from elsewhere. To compensate for decreasing inventiveness, even in 3rd generation immigrants (1st and 2nd are largely immune), they would need to attract ongoing immigration to survive in a competitive global environment. So one consequence of this pollution is that it requires increasing immigration to maintain a prosperous economy. As AI increases its effect on making up deficiencies, this effect would drop in importance, but will still have an impact until AI exceeds the applicable intelligence levels of the top male scientists and engineers. By ‘applicable’, I’m recognizing that different aspects of intelligence might be appropriate in inventiveness and insight levels, and a simple IQ measurement might not be sufficient indicator.

Another interesting aspect of AI/gender interaction is that AI is currently being criticised from some directions for having bias, because it uses massive existing datasets for its training. These datasets contain actual data rather than ideological spin, so ‘insights’ are therefore not always politically correct. Nevertheless, they but could be genuinely affected by actual biases in data collection. While there may well be actual biases in such training datasets, it is not easy to determine what they are without having access to a correct dataset to compare with. That introduces a great deal of subjectivity, because ‘correct’ is a very politically sensitive term. There would be no agreement on what the correct rules would be for dataset collection or processing. Pressure groups will always demand favour for their favorite groups and any results that suggest that any group is better or worse than any other will always meet with objections from activists, who will demand changes in the rules until their own notion of ‘equality’ results. If AI is to be trained to be politically correct rather than to reflect the ‘real world’, that will inevitably reduce any correlation between AI’s world models and actual reality, and reduce its effective general intelligence. I’d be very much against sabotaging AI by brainwashing it to conform to current politically correct fashions, but then I don’t control AI companies. PC distortion of AI may result from any pressure group or prejudice – race, gender, sexuality, age, religion, political leaning and so on. Now that the IT industry seems to have already caved in to PC demands, the future for AI will be inevitably sub-optimal.

A combination of feminization, decreasing heterosexuality and fast-reducing sperm counts would result in reducing reproductive rate among xenoestrogen exposed communities, again with 1st and 2nd generation immigrants immune. That correlates well with observations, albeit there are other possible explanations. With increasing immigration, relatively higher reproductive rates among recent immigrants, and reducing reproduction rates among native (3rd generation or more) populations, high ethnic replacement of native populations will occur. Racial mix will become very different very quickly, with groups resident longest being displaced most. Allowing xenoestrogens to remain is therefore a sort of racial suicide, reverse ethnic cleansing. I make no value judgement here on changing racial mix, I’m just predicting it.

With less testosterone and more men resisting military activities, exposed communities will also become more militarily vulnerable and consequently less influential.

Now increasingly acknowledged, this pollution is starting to be tackled. A few of these chemicals have been banned and more are likely to follow. If successful, effects will start to disappear, and new babies will no longer be affected. But even that will  create another problem, with two generations of people with significantly different characteristics from those before and after them. These two generations will have substantially more transgender people, more feminine men, and fewer macho men than those following. Their descendants may have all the usual inter-generational conflicts but with a few others added.

LGBTQ issues are topical and ubiquitous. Certainly we must aim for a society that treats everyone with equality and dignity as far as possible, but we should also aim for one where people’s very nature isn’t dictated by pollution.

 

Instant buildings: Kinetic architecture

Revisiting an idea I raised in a blog in July last year. Even I think it was badly written so it’s worth a second shot.

Construction techniques are diverse and will get diverser. Just as we’re getting used to seeing robotic bricklaying and 3D printed walls, another technique is coming over the horizon that will build so fast I call it kinetic architecture. The structure will be built so quickly it can build a bridge from one side just by building upwards at an angle, and the structure will span the gap and meet the ground at the other side before gravity has a chance to collapse it.

The key to such architecture is electromagnetic propulsion, the same as on the Japanese bullet trains or the Hyperloop, using magnetic forces caused by electric currents to propel the next piece along the existing structure to the front end where it acts as part of the path for the next. Adding pieces quickly enough leads to structures that can follow elegant paths, as if the structure is a permanent trace of the path an object would have followed if it were catapulted into the air and falling due to gravity. It could be used for buildings, bridges, or simply art.

It will become possible thanks to new materials such as graphene and other carbon composites using nanotubes. Graphene combines extreme strength, hence lightness for a particular strength requirement, with extreme conductivity, allowing it to carry very high electric currents, and therefore able to generate high magnetic forces. It is a perfect material for kinetic architecture. Pieces would have graphene electromagnet circuitry printed on their surface. Suitable circuit design would mean that every extra piece falling into place becomes an extension to the magnetic railway transporting the next piece. Just as railroads may be laid out just in front of the train using pieces carried by the train, so pieces shot into the air provide a self-building path for other pieces to follow. A building skeleton could be erected in seconds. I mentioned in my original blog (about carbethium) that this could be used to create the sort of light bridges we see in Halo. A kinetic architecture skeleton would be shot across the divide and the filler pieces in between quickly transported into place along the skeleton and assembled.

See https://timeguide.wordpress.com/2016/07/25/carbethium-a-better-than-scifi-material/. The electronic circuitry potential for graphene also allows for generating plasma or simply powering LEDs to give a nice glow just like the light bridges too.

Apart from clever circuit design, kinetic architecture also requires pieces that can interlock. The kinetic energy of the new piece arriving at the front edge would ideally be sufficient to rotate it into place, interlocking with previous front edge. 3d interlocking is tricky but additional circuitry can provide additional magnetic forces to rotate and translate pieces if kinetic energy alone isn’t enough. The key is that once interlocked, the top surface has to form a smooth continuous line with the previous one, so that pieces can move along smoothly. Hooks can catch an upcoming piece to make it rotate, with the hooks merging nicely with part of the new piece as it falls into place, making those hooks part of a now smooth surface and a new hook at the new front end. You’ll have to imagine it yourself, I can’t draw it. Obviously, pieces would need precision engineering because they’d need to fit precisely to give the required strength and fit.

Ideally, with sufficiently well-designed pieces, it should be possible to dismantle the structure by reversing the build process, unlocking each end piece in turn and transporting it back to base along the structure until no structure remains.

I can imagine such techniques being used at first for artistic creations, sculptures using beautiful parabolic arcs. But they could also be used for rapid assembly for emergency buildings, instant evacuation routes for tall buildings, or to make temporary bridges after an earthquake destroyed a permanent one. When a replacement has been made, the temporary one could be rolled back up and used elsewhere. Maybe it could become routine for making temporary structures that are needed quickly such as for pop concerts and festivals. One day it could become an everyday building technique. 

Mega-buildings could become cultural bubbles

My regular readers, both of them in fact, will know I am often concerned about the dangerous growth of social media bubbles. By mid-century, thanks to upcoming materials, some cities will have a few buildings over 1km tall, possibly 10km (and a spaceport or two up to 30km high). These would be major buildings, and could create a similar problem.

A 1km building could have 200 floors, and with 100m square floors, 200 hectares of space.  Assuming half is residential space and the other half is shops, offices or services, that equates to 20,000 luxury apartments (90 sq m each) or 40,000 basic flats. That means each such building could be equivalent to a small town, with maybe 50,000 inhabitants. A 10km high mega-building, with a larger 250m side, would have 60 times more space, housing up to 300,000 people and all they need day-to-day, essentially a city.

Construction could be interesting. My thoughts are that a 10km building could be extruded from the ground using high pressure 3D printing, rather than assembled with cranes. Each floor could be fully fitted out while it is still near ground level, its apartments sold and populated, even as the building grows upward. That keeps construction costs and cash flow manageable.

My concern is that although we will have the technology to build such buildings in the 2040s, I’m not aware of much discussion about how cultures would evolve in such places, at least not outside of sci-fi (like Judge Dredd or Blade Runner). I rather hope we wouldn’t just build them first and try to solve social problems later. We really ought to have some sort of plans to make them work.

In a 100m side building, entire floors or groups of floors would likely be allocated to particular functions – residential, shopping, restaurants, businesses etc. Grouping functions sensibly reduces the total travel needed. In larger buildings, it is easier to have local shops mixed with apartments for everyday essentials, with larger malls elsewhere.

People could live almost entirely in the building, rarely needing to leave, and many might well do just that, essentially becoming institutionalized. I think these buildings will feel very different from small towns. In small towns, people still travel a lot to other places, and a feeling of geographic isolation doesn’t emerge. In a huge tower block of similar population and facilities, I don’t think people would leave as often, and many will stay inside. All they need is close by and might soon feel safe and familiar, while the external world might seem more distant, scarier. Institutionalization might not take long, a month or two of becoming used to the convenience of staying nearby while watching news of horrors going on elsewhere. Once people stop the habit of leaving the building, it could become easier to find reasons not to leave it in future.

Power structures would soon evolve – local politics would happen, criminal gangs would emerge, people would soon learn of good and bad zones. It’s possible that people might become tribal, their building and their tribe competing for external resources and funding with tribes in other mega-buildings, and their might be conflict. Knowing they are physically detached, the same bravery to attack total strangers just because they hold different views might emerge that we see on social media today. There might be cyber-wars, drone wars, IoT wars between buildings.

I’m not claiming to be a social anthropologist. I have no real idea how these buildings will work and perhaps my fears are unjustified. But even I can see some potential problems just based on what we see today, magnified for the same reasons problems get magnified on social media. Feelings of safety and anonymity can lead to some very nasty tribal behaviors. Managing diversity of opinion among people moving in would be a significant challenge, maintaining it might be near impossible. With the sort of rapid polarization we’ve already seen today thanks to social media bubbles, physically contained communities would surely see those same forces magnified everyday.

Building a 10km mega-building will become feasible in the 2040s, and increased urban populations will make them an attractive option for planners. Managing them and making them work socially might be a much bigger challenge.

 

 

Colour changing cars, everyday objects and makeup

http://www.theverge.com/2016/11/24/13740946/dutch-scientists-use-color-changing-graphene-bubbles-to-create-mechanical-pixels shows how graphene can be used to make displays with each pixel changing colour according to mechanical deformation.

Meanwhile, Lexus have just created a car with a shell covered in LEDs so it can act as a massive display.

http://www.theverge.com/2016/12/5/13846396/lexus-led-lit-is-colors-dua-lipa-vevo

In 2014 I wrote about using polymer LED displays for future Minis so it’s nice to see another prediction come true.

Looking at the mechanical pixels though, it is clear that mechanical pixels could respond directly to sound, or to turbulence of passing air, plus other vibration that arises from motion on a road surface, or the engine. Car panel colours could change all the time powered by ambient energy. Coatings on any solid objects could follow, so people might have plenty of shimmering colours in their everyday environment. Could. Not sure I want it, but they could.

With sound as a control system, sound wave generators at the edges or underneath such surfaces could produce a wide variety of pleasing patterns. We could soon have furniture that does a good impression of being a cuttlefish.

I often get asked about smart makeup, on which I’ve often spoken since the late 90s. Thin film makeup displays could use this same tech. So er, we could have people with makeup pretending to be cuttlefish too. I think I’ll quit while I’m ahead.

Sky-lines – The Solar Powered Future of Air Travel

High altitude solar array to power IT and propel planes

High altitude solar array to power IT and propel planes

A zero carbon air travel solution. Well, most of the bits would be made of carbon materials, but it wouldn’t emit any CO2.

The pic says it all. A linear solar farm suspended in the high atmosphere to provide an IT platform for sensors, comms and other functions often accomplished by low orbit satellite. It would float up there thanks to being fixed to a graphene foam base layer that can be made lighter than helium (my previous invention, see https://timeguide.wordpress.com/2013/01/05/could-graphene-foam-be-a-future-helium-substitute/ which has since been prototyped and proven to be extremely resilient to high pressures too). Ideally, it would go all the way around the world, in various inclinations at different altitudes to provide routes to many places. Carbon materials are also incredibly strong so the line can be made as strong as can reasonably be required.

The flotation layer also supports a hypersonic linear induction motor that could provide direct propulsion to a hypersonic glider or to electric fans on a powered plane. Obviously this could also provide a means of making extremely low earth orbit satellites that continuously circumnavigate the ring.

I know you’re asking already how the planes get up there. There are a few solutions. Tethers could come all the way to ground level to airports, and electric engines would be used to get to height where the plane would pick up a sled-link.

Alternatively, stronger links to the ground would allow planes to be pulled up by sleds, though this would likely be less feasible.

Power levels? Well, the engines on a Boeing 777 generate about 8.25MW. A high altitude solar cell, above clouds could generate 300W per square metre. So a 777 equivalent plane needs 55km of panels if the line is just one metre wide. That means planes need to be at least that distance apart, but since that equates to around a minute, that is no barrier at all.

If you still doubt this, the Hyperloop was just a crazy idea a century ago too.