Time,

Inara Verzemnieks: In 1905, on an isthmus along the Willamette River, an amusement park opened -- "a combination of reformed Coney Island and a Parisian cafe," the newspaper proclaimed -- and inside its grounds, a carousel began to turn.

Coincidentally, the very next month of that very same year, a young patent clerk in Switzerland published a revolutionary theory about space and time that would have people scratching their heads well into the next century. His work suggested that time is not a steady march from past to present to future -- that it is, in fact, much more elastic. Under this new reckoning of time, past, present and future can actually exist simultaneously.

What could this possibly have to do with an amusement park and its carousel?

Just wait.

You'll see:

As one man would discover, this park and this carousel have a funny way of revealing the complexities of time. Here, past is always present.