Like everyone else, we love Rube Goldberg machines. And we love them even more when they are built around two basic elements: petrol and gunpowder. Now I want to see one that involves a canon and spans through half a mile. [YouTube -- Thanks Karl!]
Gadgets
Pretty dodgy cut at 0.53...
Dec 2009 - didn't this one already make an appearance on Gizmodo US ages ago. I suppose Recycling is good for the environment.
Don't you mean a cannon?