We'd already heard about Central Japan Railway Company's not-so-near-term intentions to deploy a speedy new maglev system in the country, but it looks like it's just now getting official with things, and it's still promising to have it up and running no sooner than 2025. By then, there should be 180 miles of track stretching from Tokyo to central Japan, which'll accommodate a maglev train capable of topping out at 310 miles per hour, apparently making it the world's fastest. That, as you might have guessed, comes at a fairly hefty cost -- $44.7 billion, to be specific -- which makes some similar, but decidedly less speedy systems pale in comparison. As The Register points out, however, while Japan's train will be the fastest maglev system, it won't quite keep up with the fastest conventional trains around, or whatever else might be around in the year 2025.

[Photo courtesy of FYS]