We posted about the Superbus earlier today, and while poking around for more info, we discovered that back in 1979, NBC had Supertrain, which is just a whole new level of craziness. Imagine a giant train, powered by a nuclear reactor, driven by the cast of Love Boat. What could possibly go wrong?

Lookout! In case you haven't noticed, China is climbing on up the wooden ladder — and not slowly. The Chinese are quickly scooping up as many "world's fastest" titles it can get. Most recently, it was the world's fastest supercomputer and now it's the world's fastest high speed rail train.

China is hoping to complete a massive rail network that would help the country cut down on pollution in addition to moving folks around on trains that are as fast as jets. To get them going that fast, though, Chinese engineers are considering a special tunnel system.