In a forum (in Japanese), i saw a post as such.
In the vaccum, there is a light source (on the left) and hollow tube (on the right). Light ray is passing through this tube (from the left to the right). Light source is at a stand-still and tube moves to the right at a speed of 150,000 km/sec (and tube's length is 150,000 km !!). According to Galilean transformation, light speed relative to the tube is 150,000 km/sec. How does Lorentz transformation explain ?