July 4th, 2003

bankformonument

Whee!

Superb BBC news story about a really cool-looking type of fast travelator on trial at a Paris metro station. Essentially you start off on a slow conveyor belt and then transfer to a fast one, before transferring to a slow one again and eventually returning to walking off at the far end.

I've idly considered solutions like this in the past as alternative mass transit solutions. Actually, my version had several (six?) parallel conveyor belts, with the outside belt moving slowly and the inside belt moving at a speed comparable to that of a light rail train. I never managed to work out a really convincing way for people to change speeds, though. Is this one the solution? I don't know, but I'm glad that they're trying it to find out.

Nowhere that I've seen yet has a figure for energy consumption. I'd be interested to know whether this could be used and extended to carry people at greater speeds for longer distances or whether that would prove extremely energy-inefficient compared to a train of some description. Theoretically I suppose that you could extend this from three belts at two different speeds to having five belts at three different speeds, but I'm not sure if the rollers for a (say) 11 km/h -> 17 km/h transfer would work as well as the ones for a 3 km/h -> 11 km/h one.

The safety concerns are interesting. I'd have thought that one way to solve them would be just to get people to sit down in a little cart because you can control carts over the rollers in a way that you cannot control feet over the rollers, but this leads to all sorts of embarkation / disembarkation / returning-the-carts problems. It also reduces the advantage that people used to travelling along a 11 km/h belt can still travel faster by walking along it at (effectively) 11 km/h + overtaking speed.

I also am uncertain about how people transfer from a handhold on a belt at one particular speed to a handhold on a belt at a faster speed - frankly, that part of the operation looks at least as fraught and dangerous as the "changing the velocity of your feet" part, and the changing height of the handhold belts looks unnecessarily exciting. (I was also never uncertain about the downside of the "slides and really long escalators" solution, if you have sufficiently efficient escalators and/or a way to convert kinetic energy back into gravitational energy.)

Despite a few petty nationalist reservations, I hope that this works, that this proves to be cost-efficient and that it can spread around the globe.
  • Current Music
    it ought to be the "weeeeeeeeeeeeeeeee!" song from years ago
mobius-scarf

Happy Independence Day!

Happy Birthday to the United States of America.

I shall celebrate with a tiny piece of Americana from the b3ta newsletter. It actually comes from last week's newsletter, but this has the advantage that there won't be twenty times as many people wanting to download the resource as the web site which serves it can stand. It also feels more appropriate today, somehow.

Anyone below possibly thirty, thirty-five or forty is likely to have seen one of the many closely related Sesame Street pinball "counting to twelve" animations at some point in their lives. Sesame Street is such a global constant these days that I'm pretty confident that this will apply to nigh on everyone in the English-speaking world who sees this regardless of geography. (I'd be curious to know from the Norwegians and Germans who see this whether there exist dubbed versions of the song in other languages for the local version of the Street.) Nevertheless, the source material remains distinctively American.

As b3ta put it, "Thorpe has made a lovely track sampling The Pinball Song from Sesame Street. A friend of his has made a video featuring the footage that accompanied it on the show. It's great, a funky nostalgia fest."

The psychedelia extends into the Beatles' Yellow Submarine cartoon and I have to say the remix is more successful when it sticks to Sesame Street canon. Nevertheless, it's a great day for America and a great day for pinball.

Go download it! (.wmv, 6.65 MB)
  • Current Music
    It goes something like 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12