RealPourOut on Instagram: "This image shows a man standing in a lake or river, performing an impressive physics demonstration or "science trick." He is holding a long, clear vertical tube that is filled with water high above the surface of the lake, with a Pepsi can perched at the very top. The man is wearing a black t-shirt, dark shorts, and sunglasses, standing waist-deep in the water. The background features a beautiful, calm body of water surrounded by a dense green forest under a bright blu