#273: Evacutube

People who need to escape from a tall building are usually faced with either a “Don’t use the lifts” notice or to scramble down multiple flights of stairs.

An alternative, today’s invention, is a hybrid of abseiling technique and the traditional fireman’s pole. It requires almost no technique, avoids panic-related bottlenecking and doesn’t depend on physical strength.

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Buildings would be equipped with an array of fireproof, (opaque) cylindrical shafts. Down the centre of each, a pole would run from the top of the building to the ground. There would be multiple discs centred on each pole and free to slide down it. The annular gaps between disc and pole and between disc and cylinder would be sufficiently narrow that they would provide viscous air resistance to the downwards motion of each disc.

In the event of eg a fire, people could enter a cylinder, stand on a disc and descend the pole at a rate which would quickly settle down to a fixed velocity (this would be designed to be slow enough to allow people to jump on a disc, as in a paternoster system, but fast enough to allow effective mass egress).

Nearing the bottom, an electronic stop would ensure that each disc would only be free to cover the last 2m or so, once the person beneath had stepped out of the tube.

#272: Learning scales

I spent a lot of time at school being force-fed detail in a number of subjects. This was hard work for all concerned. One of the errors which teachers can make is to jump straight to the minutiae, because that reflects their enthusiasm and expertise -often at the expense of the learning process. I realise now what I needed was to be shown the underlying structure or shape of information and only then to attach progressive levels of detail, as required.

Geography is a case in point. It’s not necessary, in my view, to be able to reproduce the exact course of the Thames or the shape of Luxembourg unless you happen to be walking through the landscape. Fractal geometry has taught us that local shape depends on the measurement scale being currently used and a similar thing seems to go on when we try to memorise new information. I studied geography for four years and yet I can’t even picture the relative positions of Hungary and Bulgaria. The big picture needs to be explained first, only then followed by increasing detail, to an appropriate level.

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(Imagine each novel on an English course being supplied with a precis which explained what it was all about. When first teaching someone how to program, it might be more useful to start by showing a box diagram of interacting modules, rather than the minutiae of how an ‘if’ statement is handled by a compiler running on a particular CPU. )

In subjects like geography or electronics or taxonomy or even computer programming, where the information to understand can be represented as a 2-D drawing or map, this can be done semi-automatically, by applying filters at a coarseness which decreases as expertise progresses.

Today’s invention is to apply this technique particularly to chunking e-learning material into a hierarchy of diagramatic lessons, elements of which can be expanded to supply further levels of detail by hyperlinking (e-learning is often deliverered via systems with limited bandwidth/ screen resolution where progressive detail representation is essential). This would map on to the kinds of multiscale mental representations people seem to use and allow individuals to drill down for more information only in areas which they found interesting.

#271: Cred-id card

I’m pretty much against debt in connection with personal finance (don’t start me on the subject of mortgages, let alone overdraft rates).

Today’s invention is a simple attempt to decrease credit card fraud (at least when the cardholder is present) now that chip-and-pin technology is starting to come under pressure from clever criminals.

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When you apply for any of this plastic (or even for an account), you upload a digital photograph of yourself which the bank then laminates into the body of the card (occupying the full size of one side of the card). This makes a low-cost link between your credit status and personal appearance in a very cheap way, that retailers etc can easily verify.

(Naturally the image could have other security features embedded, in order to lessen the danger that a card might be delaminated and a false image substituted. A simple one might be to only have some regions of the face image visible from one side of the card and the rest only from the other side. This would require fraudsters to embed at least two substitute layers, yet shopkeepers could just spin the card about a given axis to see all of the face at once).

It has the added benefit that if you drop your flexible ‘friend’ on a bus, someone may recognise the owner and return it.

#270: Seat allocator

Waiting for the departures board at a railway station to flicker into life shouldn’t, on the face of it, be a stressful experience.

If you happen to be standing at Euston on a bank holiday weekend with about 100 other people (none of whom has a reserved seat for the same 400 mile journey) then the whole process takes on a certain urgency. Suddenly, when the board starts to indicate the crucial platform announcement, there is a very unBritish race to board (a cross between Chariots of Fire and A Night to Remember). Sad.

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This problem arises because train companies don’t recognise the difference between commuter trains (where no seats get reserved) and long distance ones, where standing for five or six hours isn’t practical. Existing ticket machines and kiosk personnel don’t deal with seating.

Today’s invention is intended to allow passengers, arriving for a long journey without tickets, to reserve seats when the departure of their choice first appears on the board. This might be made more costly for them than booking everything in advance or via the desk or machine (I’m assuming here that, in the not too distant future, rail companies will have fixed all their broken processes and websites to allow advance seat reservation and ticket purchase to be coordinated…hardly rocket science).

When the electronic board indicates that a particular train is scheduled for departure (perhaps an hour+ in advance), it also shows a phone number (which is different for every departure). People can, as they arrive at the station, text this number to purchase a ticket and and receive a seat reservation.

On boarding the train -calmly, the one-line electronic displays over each seat would say “Reserved for XXXX” -leaving no room for the squabbling which now occurs.

#269: Hill limiter

In Summer, I often see people enduring a long-distance cycling holiday. My personal view is that they tend to be carrying way too much stuff on handlebars, rear rack and two double sets of panniers, one on each wheel. Many of these people must thrive on the challenge presented by mountain roads, on which even the most helpful gearing allows progress upwards at only a snail’s pace.

Most people, however, are not King of the Mountains and would appreciate a less steep route, where they could view the scenery without gasping for breath all the way.

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Today’s invention is a web-based tool designed to help them plan a cycle route between any two locations, subject to a maximum combination of local gradient and its duration. This would mean that cyclists could enter start and end locations and their estimate of how long they could pedal upwards at what rate without discomfort (based on experience of their previous efforts or lab data).

A program running on the webserver would check a very large number of possible routes and provide some alternatives, each with a maximum (gradient*duration) less than the allowed threshold. Obviously, if no routes were available, it would be time to grit one’s teeth for a sharper ascent or opt for a different destination. This would result in a printable (lightweight) section of map with the route marked for each day’s ride.

#268: Takeoff tracks

It costs a lot to get planning for and to build an airstrip from scratch. Given that thousands of miles of straight railway track lie around most of the time doing absolutely nothing, I’d like to propose some reuse of our underemployed transport infrastructure.

Today’s invention is to allow straight sections of railway line, in unpopulated areas, to be used as a take-off and landing strips for light aircraft.

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Obviously this would require small modifications to existing planes (eg a detachable sled), and a mechanism put in place to ensure that they operate on sections of line which aren’t just about to be used by other services.

This approach could work for gliders too. If a railway engine were equipped with a winch, the combined speed of the engine and winding speed would be more than enough to get a glider aloft.

Landing…well that could certainly prove trickier. Descending smoothly onto a flatbed car, already moving at speed, would however be well within the capabilities of most private pilots.

This whole approach could be funded by landing fees and help pay for improvements in the world’s neglected railways.

#267: Hushtone

Exactly 20 years ago, somebody bought me a Braun electronic alarm clock that has since become a ‘design classic’. The really cool thing then, back in the days of analogue, was that it was ‘voice controlled’ ie you could get the alarm to stop sounding by shouting ‘Stop’ at it.

So two decades later, I’m sitting in a meeting with several lawyers and businesspeople who have forgotten, as usual, to switch their mobile phones off. They each ring once or twice and, every time, someone has to delve into their expensive, hand-tooled, multipocket brief case to find their phone, press several different buttons and eventually silence them.

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Today’s invention is simply to equip mobile phones with enough voice control to allow them to ‘Divert’ to answerphone or just ‘Stop’ making that racket, when instructed to do so verbally.

It seems to me eminently possible to achieve this with the electronics we currently have available. Taking that a step further, it should be feasible, on entering a meeting room, to be able to say ‘Phone standby’ and thus avoid all that inappropriate in-meeting ringing.

Maybe in future, phones could automatically respond on hearing one’s standard meeting-start phrases, such as “Hello, good to meet you…” -thus allowing semi-automatic call diversion.

#266: Fuel feedback

According to DaimlerChrysler, fuel economies of up to 25% can be achieved by modifying driver behaviour. This is hugely more significant than any foreseeable technical advances: it’s mostly about pressing the accelerator pedal less.

Feet, especially those shod in heavy duty leather, aren’t exactly sensitive to angular position. Secondly, we tend to judge how hard to press by watching for changes in ‘optic flow’: how the environment rushes past. This is by no means an accurate measure, yet that’s how we mostly determine vehicle acceleration.

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Today’s invention provides a simple way to lessen the consumption of fuel. There are lots of gauges fitted to cars which throw a needle across a dial to indicate how economically, or otherwise, one is driving. What is actually needed, though, is a more direct psychological link between pressing the accelerator pedal and throwing money away.

A digital display on the dashboard would respond, very sensitively, to depression of the ‘gas’ pedal by showing how much of the last fuel load had been spent at any given moment (calibrated directly in eg £). This would require the driver to type in the cost of fuel added in the garage (in the absence of a wireless data transfer from the petrol pump itself).

#265: Zoovision

Keeping wild animals in captivity seems to me hard to justify, especially now that we can buy a DVD of their life in the wild full of amazing insights and knowledgeable, whispered commentary. I know that, by doing research on such creatures, we may be able to promote breeding and preserve species better -although an even more successful technique would simply be for Homo Sapiens to keep the hell away from their habitats.

My main concern is that, whilst it’s fine by me to cage birds or iguanas, it really can’t be ok to lock up jaguars and polar bears -these creatures are prone to develop all sorts of apparent disturbed mental states, as evidenced by pacing and self harm behaviours.

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Today’s invention is an attempt to alleviate the boredom which such animals must surely experience. Existing ‘enrichment’ activities…ie the odd rubber ring tossed over the fence, would be enhanced by use of in-cage VR. One wall of an enclosure could have projected on it films of the animals’ native environment (these could be fed, in realtime, from webcams eg in Africa or wherever, so that the sound effects and light levels would be real).

I’d also try techniques such as playing noises of predators occasionally and even releasing into the cage robotic ‘prey’ which could be chased by the animal in question. The introduction of interesting smells might also occasionally help to maintain mental health.

#264: Chewticles

Far be it from me to promote bad habits, but some people just can’t help biting their fingernails. When I was a child, our nails would be painted with bitter aloes in order to force us to stop gnawing our paws…didn’t really work though.

Today’s invention is a way to allow the bad habit but preserve the underlying nails.

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Edible, false fingernails could be bought and attached (briefly) to one’s own nails. These would be long and patterned and available in a wide variety of delicious flavours (including both sweet and savoury versions; maybe even sugar free and containing toothpaste).

Although absent-minded or nervous nibbling would still take place, at least this would not involve consumption of anyone’s bodyparts.

Before there’s a storm of protest from the food hygiene lobby, consider how free from germs the average teenager’s fingers are whilst they chew them. This approach would even allow a layer of nasty-tasting stuff to be incorporated within the false nails after the tasty bit was finished and the underlying, real nails were in danger of being bitten.