His designs were profound. He devised more than 50 different apparatuses, including fountains, musical devices, hand washing devices and machines for raising water from ponds, rivers and flowing ...

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.