The world’s fastest woman shares the rituals, recovery tools and travel talismans that power her record-breaking speed—and why she won’t race without her diamond TAG Heuer.

Engadget staffers spend the entire year poking, prodding and otherwise testing the latest tech gadgets. So we’ve got a pretty good handle on what’s unique and interesting right now. We put together ...

In vitro, these cells release serotonin and dopamine in response to membrane depolarization ., 该孔道的开放可使质膜电位完全去极化，最终导致细胞死亡。