Every year the American Society of Civil Engineers holds a national competition that challenges college students to build a concrete canoe. It has to float, obviously, and that rule remains even if ...

Make a mould First you need to make a mould for your canoe -- a positive mould where the canoe is moulded over the outside, not in a hollow. Glue the foam cubes together to create a 1m x 1m x 4m block ...

Concrete might not be the first material that comes to mind to make a canoe, but that’s what Stanford University students are using with the help of an American Canyon firm. The engineering students ...