Conversation so far:
What can you tell me about Grace Hopper's anecdotes?
Grace Hopper is famous for her nanoseconds visual aid.
How so?
She started handing out pieces of wire that were just under one foot long (11.80 inches = 300 millimeters)-.

Question: Why did she do this?
Self-contained rewrite: Why did Grace Hopper start handing out wire?