Watch a Giant Duck Float Down a China Canal

The video discusses an experiment in China using plastic ducks to test water speed. The methodology involves using water group cameras and GPS devices. Some footage is shown from the deck, and the canal is designed to divert water from southern China to drought-affected areas.

What is the purpose of the plastic duck mentioned in the text?

How is the speed of the water being tested according to the text?

What technology is used alongside the plastic duck for testing?

What is the design purpose of the canal mentioned in the text?

What geographical area is affected by the canal's design?