There's a clock, clock, clock, clock.

In other words, we can solve for formula_44 everywhere inside a volume where either (1) the value of formula_44 is specified on the bounding surface of the volume (Dirichlet boundary conditions), or (2) the normal derivative of formula_44 is specified on the bounding surface (Neumann boundary conditions).

Wow, that's a big clock! Yes, it's a grandfather clock.

MacSlow's Cairo Clock

GNOME Clocks

The watch broke down.

Fix the watch.

Fix the clock.

The clock has stopped.

The clock stopped.

The clock is slow.

Fix the watch.

Fix the clock.

The clock is ticking.

The clock is broken.

The clock is defective.

Wind up the clock.

The clock ticked.

The clock was ticking.

G. JACK Clock

World Clock (gworldclock)

Minbar Prayer Times

(checks his watch)

Let's synchronize our watches.

The clock is wrong.

This watch is waterproof.

This watch is my father's.

This clock is electric.

This watch is expensive.

This watch is broken.

Is that clock working?

Is that clock working?

My watch is broken.

My watch is accurate.

My watch runs too fast.

My watch runs too fast.

I have lost my watch.

I had my watch fixed.

I had my watch repaired.

I bought a watch.

I bought a watch.

I lost my watch.

The clock struck ten.

The clock says two.

The clock is striking four.