Zand's 'Ingenious Clocks,' which the Houston Symphony debuts this weekend, salutes little-known 12th-century scholar ...

The Doomsday Clock has moved one second closer to midnight, the metaphorical point at which humanity is experiencing a global catastrophe. Here's a closer look at what this means, how this ...

Tick, tock, goes the clock' What time is it? Let’s ask the clock. What time is it? It says ‘tick, tock’. What time is it? Let’s find out, What it’s all about. Tick, tock, goes the clock!

What time is it? Let’s ask the clock. What time is it? It says ‘tick-tock’. What time is it? Let’s find out What it’s all about. Tick-tock goes the clock, Tick-tock goes the clock.