Big Ben, located on the Thames River, is the symbol of London.

Its bells float over London all the year round.

Big Ben is the pride and spiritual strength of the British people.

In 1843, the Palace of Westminster was destroyed in a fire, and a long series of bells in the palace turned into a heap of scrap iron in the fire.

Without clocks, how can members of the royal family watch the time?

No, even if the palace is not rebuilt, clocks and watches must be created first.

Soon, the project of rebuilding clocks was in full swing.

But in the reconstruction work, the engineering director put forward...