A list of unusual snow vehicles, from Sno Cats and bizarre Russian snow cars to the amazing antarctic snow cruiser which is powered by a aircraft which is literally bolted to its roof. Unlike regular snowmobiles, these vehicles shuttle groups of people around the barren wastelands of places like the antarctic.

The original wireless network used pigeons. One of the worlds largest information firms, Reuters actually started out as a messaging service with carrier pigeons, they were used widely for messaging during the WW1 and even for aerial photography. The famous psychologist, Skinner worked on a guided missile which was to be controlled by live pigeons.

Algorithmic architecture uses computers to generate natural looking aperiodic forms that are are a revolutionary alternative to the extreme crystalline regularity of what has up to now been considered modern. The dreary exhibition of pre-fabricated architecture at New York's MOMA, has a couple of examples of algorithmic designs at its entrance, but that is where it stops. On entering it is an mixture of of the dated, High Tech style and dumbed down Mid-Century Modern boxes for Dwell magazine readers. If you really want to see what is happening at the cutting edge of architecture, look at some of these schemes. This list could go on forever. Drill down on some of the links and explore.

Gym equipment has a habit of making people look stupid, like that weird guy on TV with the pony tail and the abs machine. These machines are the zenith of fitness absurdity - teaching you to swim on dry land, anywhere. Handy if you are an Olympic swimmer holed up in a hotel room, waiting to be airlifted into Beijing when the smog clears.

As someone who fell the height of the Eiffel tower in a climbing accident, each one of these images makes my palms sweat, from Bettmans classic views of acrobats on the edges of newly built NY skyscrapers to Li Wei's elaborate illusions of people seemingly in mid air. One however, stands out from all the rest, the legendary stuntman Dar Robinson on the edge of the CN tower. Click through to see a video of the stunt.