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.
The V150, a souped-up version of the POS train, was built specifically to break the wheeled rail speed record and did so by clocking in at 357.2 mph (574.8 kph) on the LGV Est line in April 2007. The MLX01 in Japan has this record beat by a mere 4 mph, but the TGV POS still holds the title of fastest wheeled train.