You've been tapped to give a presentation. Quick - what are you feeling? Has a sense of dread washed over you?
An astounding thing happened to this quirky brain researcher - she suffered a massive stroke and studied herself as her brain functions shut down, one by one. In this remarkable TED Talk presentation, Dr. Jill Bolte Taylor reenacts exactly how it feels when your brain fails you.
Consider the fire hydrant's purpose. Your neighborhood fire plug lets firefighters tap into the municipal water system to extinguish a fire. They attach a hose to the cast iron hydrant, screw open a valve and whoosh, out comes a powerful flow of water. Simple enough.