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.
Europeans and Asians currently operate the fastest high speed trains in the world, regularly commuting on trains such as the Shanghai Maglev and Harmony CRH 380A. While these two currently hold all the records, other fast trains, such as the HEMU-400X, Zefiro 380 and Talgo Avril, are close contenders for the crown of world's fastest trains. Railway-technology.com lists the top ten fastest trains currently in service.