Question: What physical phenomenon is demonstrated in the picture? (Limit to ten characters)
Clues:
1. The scene is a multi-lane highway with white lane markings.
2. There are several large trucks driving on the highway.
3. The cargo areas of the trucks are covered with flexible tarps.
4. The tarps on the sides of the trucks are visibly curved and bulging outwards.
5. Other vehicles, like a white car, are also on the road, indicating traffic in motion.
Answer: Bernoulli effect
Category: Physics