1 Plant/Animal Cell Model (interactive) 2  Pumping Heart Cells. 3  Apoptosis (video) 4  Cell Cycle (interactive) 5  Mitosis (interactive) 6  Meiosis (interactive)  Microscopy.
Amtrakâs Acela Express is currently the fastest train in the US, capable of a maximum speed of 150 mph (241 km/h) â although it typically travels at about half that speed. Depending on whose definition you go by, that may or may not qualify it as a high-speed train. Source: State of California (PDF) via Inhabitat.
They are futuristic, comfortable and safe. Super safe. The worldâs fastest trains, be it magnetic levitation or conventional line, can easily rival their air competitors. They might not be as fast as planes, but they are so much more reliable, punctual, safer and greener.