Why could the cast members lift the table this way, but if they sat under the table and blew upward, they wouldn't be able to lift it at all? What role do the bags play? What evidence would convince you that the air in the baggies is compressed and is therefore exerting pressure in every direction? What do you think would happen if the bags were made of another material such as paper or rubber? What are some other examples of devices that use air to lift something heavy?
