Have you ever walked past Union Square and wondered what that strange cosmic smoking hole is? Me too. Turns out that it’s called Metronome and it’s an art installation organized by the Public Art Fund on behalf of The Related Companies who developed the residential tower above it. Created by Kristin Jones and Andrew Ginzel to symbolize the intangibility of time, Metronome consists of three distinct parts: 15 digital numbers, a roiling brick sculpture, and a revolving moon. The digital numbers form a 24 hour clock that moves forwards and backwards at the same time. The four numbers on the left are the 24 hour clock, while the four number on the right show how many hours/minutes until midnight, essentially counting down. The speedy numbers in the middle are milliseconds, counting down and counting… up… maybe that’s just called counting. So if you are passing by and need the time, just look up. The section on the right displays the current phase of the moon, and the middle section, well, I’ll leave that to you to work out.