Interactive Nighttime Ads

If you’re like most of the people looking at this billboard advertising the Adelaide United Football Club in Australia, you think that the night soccer-promoting billboard is designed to interact with the moon when the moon just happens to line up for the right view.

There are endless comments about the stupidity of this advertisement on the Internet, most citing the logistics of making the thing work.

Moon alignment is not a problem: The billboard ‘moon’ is mounted on a black pole that extends above the outdoor display. When Earth’s actual moon is in the sky, there are two moons.