CLEAN: Aftershocks frighten Japan quake evacuees

The video tutorial covers four main topics: the Kunishi number, local contact, Google, and the Super Bowl. Each section provides a brief overview or insight into these subjects, offering foundational knowledge and key points for understanding their significance or role in their respective contexts.

Can you explain the concept of local contact in relation to Kunishi numbers?

Discuss the impact of major events like the Super Bowl on local economies.