Here is a video of a stair climbing mech suit which appears to be built out of car shocks. The video shows the mech like chair unit climbing down stairs and then walking across the floor. There are two guys standing to either side to catch the guy riding it if it falls over.
Here's a video which shows an illusionist's trick in action. The guy is standing on a table, he lifts up a towl, and disappears. The trick is that there is a mirror running down the middle of the table facing the camera which reflects back the camera side of the table. The illusionist is behind the mirror.
Guy demonstrates a coin trick using a glass table to show the movement of the coins. He flicks each coin under a towl while pretending to pick it up and then drops a palmed coin out of his hand into the glass.
Here is a prototype of a wave generator in this video. Basically it sits in the ocean and the up and down motions of the wave generate power through a flywheel. The guy shows the inside and then takes it to ocean and tests it in the video.
Here's an interesting video which uses a bunch of facts to lead up to the main point of the video which is the coming singularity. The singularity is supposidly the point where change is happening so fast that we won't be able to imagine what will happen from our present perspective.
This video shows off a prototype of a house building robot. The robot has a pattern that it follows and it just builds one layer on top of another by laying out material (like concrete) and contouring it. The initial robot in the video is a small prototype which seems to be using clear and near the end of the video it moves to larger prototypes using concrete.
In this video a guy demonstrates an accordion chair coach. It seems like a bunch of pieces of cardboard or similar material in the shape of a chair which is attached togather like an accordion. It seems pretty light.
Here's a video of a guy's hexapod robot which looks like it dropped off the set of Stargate and the Replicators. He walks it around and moves each leg individually when needed.
