What do Vancouver-based artists Paul and Russell of Metro DS do when they are not building 'technically challenging projects with uniquely stylish designs'? They dream up large unwieldy kinetic structures like the Panterragaffe - a pedal-powered two person walking machine or as they describe it, a walking bicycle.

What if we told you that sand that you are accustomed to seeing on the beach is not really a mundane light brown, but a mix of bright colors that resembles gems? While it may seem a little far-fetched, that's what Professor Gary Greenberg discovered when he magnified each grain of sand, 250 times - And, he has photographs to prove it.