AT&T made the leap first, revealing that it plans to offer 8-GB and 16-GB iPhone 3G smartphones at a special "no-commit" price. That translates to $599 and $699, respectively, to avoid being locked ...

In his famous letter to the Royal Society dated Oct. 9, 1676, Antonie van Leeuwenhoek described a single-celled eukaryote (Vorticella) and its fascinating ultrafast cell contraction as the first set ...

Human embryo at the 4-cell stage. Cell DNA appears in red and their actin cytoskeleton in blue. The cell on the right has just split its genome into two and is about to divide. In humans, embryonic ...

Experiment with contraction triggered by an optical stimulus of a cell (red) in tissues – results shown with force sensors (top) and then what happens when they are genetically turned off (bottom).