When tourists come to the Big Island, they usually seek out the island’s famous white or black sand beaches. What they normally pass up, however, are the gray sand beaches. Ho’okena Beach Park is kind of small and secluded, but its unusual colors and rocky formations make it stand out. This is a macro shot of a small rock partially buried in the waves. Not your typical Hawaiian postcard material, but still quite beautiful. Large version viewable here and here.
I took this one a while back during a street fair at the Exploratorium. It’s a reasonably close-up look at a large Newton’s cradle. You know, that little ball/pendulum thingy you sometimes see on office desks? It’s really a demonstration of the conservation of momentum and energy on a smaller, hands-on scale. Physics is cool like that. As for the photo, it doesn’t really fit into any category, so I thought it’d be perfect for this week’s Odd Ball Photo Challenge.