Archive for the ‘Electronics’ Category

The Lessons of 2013

28/12/2013

Every week I scan the abstracts of about 25 new papers published in peer reviewed journals and by universities. Sometimes I have access to complete papers.

They are all relevant to cycling and I try to stick to the one that have some basis in, or relevance to, science. Considering I read only those written in English, ones that cross my radar and ones that I have any hope of understanding, clearly there’s a lot out there that I miss. Nevertheless, the pickings are rich and diverse.

While I tweet nearly everything I find (@cyclingscience1), here’s a summary of  a little of what I’ve learned this year from those thousands of diligent researchers who continue to add to our understanding of cycling.

I don’t necessarily agree with any of them.

• Yoga stresses the heart and respiratory system less than cycling
• The weaves of skinsuit materials affect your aerodynamics
• Bike reviews criticising comfort are largely untrustworthy
• Regenerative braking for e-bikes is going to blossom
• Cycling in London is either more dangerous or the safety models were wrong
• The Mayor of London is more worried about commerce than road safety
• Mountain bikers suffer the worst injuries in the first third of an endurance race
• French riders in the Tour de France live longer than mere French mortals
• Traffic calming and separate cycle paths make cycling safer in Netherlands
• Medics worldwide believe that bicycle helmets are fantastic
• The health benefits to US society of cycling outweigh the costs
• Caffeine definitely helps if you drink it, but not as a mouth rinse
• Cars don’t pass helmeted cyclists any closer than they pass bare-headed riders
• Steer by wire is on its way for e-bikes
• Support for, and research into, safety in numbers is growing
• Male cyclists have bigger thighs than triathletes
• The secrets of bicycle stability and steering remain enigmatic
• The best time to ride along Oxford Street in London is 10:07 on 25th DecemberOxford St cycling 25 Dec

To stay ahead of the bunch in 2014, buy a copy of Cycling Science and follow the tweets @cyclingscience1

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The lure of the future

15/11/2012

There’s been a flurry of news about genuinely new technologies for bikes, mostly involving digital electronics. These stories are seductive because they fulfil our desire for an exciting, better future. I know this all too well – I earned a living from writing such stuff for more than a decade.

One downer is that most of them are chimeras. They never materialise. In Britain it’s known as the Tomorrow’s World effect, after a TV programme that, each week, highlighted innovations but which were never seen again.

Of course, that’s a little unfair. While the novel devices and gadgets don’t themselves become commercial products, some of the underlying technologies are picked up and find their way into successful, popular designs.

So that’s my excuse for showcasing a few of the innovations for cyclists that have floated across the internet recently. They may disappear, they may become mainstream or the ideas embedded within them may surface in a completely different manifestation. Whatever – they’re fun.

A head case from MIT

Wired has featured a helmet that, allegedly, can detect brainwaves. It’s a student project at MIT and it has been suggested that it could be used to detect the intentions of cyclists and trigger the operation of digitally controllable electronic components. So it could, with a single thought, illuminate a left-turn light.

Meanwhile, Cambridge Consultants have turned a smartphone into a virtual gearlever and so do away with human thought altogether, according to my old editor Paul Marks at New Scientist. With its internal accelerometer, a prototype app and a Bluetooth connection to the electronic gear mech, the mobile phone makes the chain shift between cogs automatically and maintains a steady cadence for the rider.

Stop me and buy one

If the Bluetooth connectivity tech from Cambridge Consultants is allied with MIT’s helmet they could be harnessed by Saarland University’s digital braking system. Then all a rider would need to do would be to think about slowing and, hey presto, the brakes would be applied, the tyres would never skid because the wheels would have a digital anti-lock function and the gearing would change down automatically and make it easier to start pedalling.

Full of holes

Battery-powered enhancements are not for everyone so how about a puncture-proof tyre? Britek Tire and Rubber came up with an air-less car tyre almost a decade ago but have not yet succeeded in going mainstream with it. Now they hope that mountain bikers might adopt it. I’d love to hear from anyone who has ridden these tyres.

Full of good in tensions

Finally, something that genuinely deserves to be supported by the cycle industry – an independent lab for assessing the friction of all bicycle components. Friction pales in comparison to drag in terms of wasting a cyclist’s energy but, with aerodynamics becoming reasonably well understood, this new facility should become very busy as riders want to shave even more seconds off their competition times.

That’s the future. Maybe. Waddyou reckon?