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Comment Re:A bit more information at NHK... (Score 1) 159

The Japanese maglev system has a lot in common with "Inductrack", it uses passive figure-8 coils in the track to levitate and guide the train. The magnets on the train are superconductors, and powered alternating magnets in the track are used for propulsion. The trains have wheels because they don't levitate at low speeds or while stopped.

The only difference between the systems is in the kind of magnet used in the train itself.

Comment Re:85.9? (Score 1) 241

I passed my driving test in 2002, and hadn't been driving long then. Petrol prices didn't matter to me before that :P

I vaguely understand miles per gallon (I can recognise a typical mpg, good, poor, what's better than another, etc), but I can't calculate anything useful with them, because I have no idea how much a gallon is.
I get 400 miles on £70 of fuel, roughly 55 litres. What's that in mpg? Couldn't tell you without looking up the gallonlitre conversion (or as I did in my earlier post, just asked Google to do the maths for me). Miles per litre would be more useful really, but I tend to think about journeys in cost rather than volume of fuel.

Comment Re:85.9? (Score 1) 241

I just meant that without looking up the conversions for a USD or US gallon we would have no clue what you meant. Without calculating it I have no idea how much $9 is worth. I know our pound is stronger than pretty much everything, so it's worth less than £9, but how much less? Would it buy a takeaway meal? Or only an apple?

Comment Re:85.9? (Score 1) 241

We wouldn't understand what you meant by "$9 a gallon for gas", as not only do we not use gallons, the "gallon" the old people know here is a different size to yours; we don't use dollars (and the exchange rate has varied quite a lot over the past couple of years (between 1.3 and 2.1 USD per GBP, currently ~1.6)); and we call it petrol, not "gas". Google says the prices I've seen work out at between 8.3 and 9.0 USD/US gallon at current exchange rate.
My car averages around 400 miles on £70 (aka a full tank) of fuel at the moment, you? That works out about 35 British mpg or about 29 American mpg. That's mostly motorway driving (aka >70mph). It would be better if I drove better.

Not going to disagree on the amount of "urban trash" we have though.

Comment Re:PS3 backwards compatibility (Score 1) 329

They wouldn't give open source devs free access, because they would no doubt find ways around the PS3's DRM and so on. This was given as the reason why OtherOS never got access to the GPU and so on.

There are decent PS2 emulators, for x86. The decent ones use JIT recompilation, which would have to be rewritten and reoptimised for the PS3's PowerPC instruction set. Not to mention that the main cpu itself isn't that powerful (it's a hyperthreaded single core, with no out-of-order execution and a small cache), so parts of the emulator would need to be offloaded onto the PS3's SPUs, which is really bloody hard to do.

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