Who'd a Thunk It?

So, would you have thought that duct tape wouldn't work for sealing ducts?

Turns out it's true. A study back in 1998 showed that for whatever reason, nearly every other type of sealant survived the stress tests used to try to keep gas inside a container with a leak.

Fortunately, it works for everything else -- as demonstrated in Apollo 13, it can fix spaceships. And as demonstrated in Jackie Chan's 1995 movie Rumble in the Bronx, it can fix hovercrafts. If we ever actually encounter a black hole with a spaceship, we may able to use the tape to cover it up.