With a 200cc lawnmower engine, a handmade propeller, and some spare paraglider parts (that he just happened to have kicking around?), Russian tinkerer Sergei Khvalin created a cross-country skiing rig that can send him zipping across the snow at speeds of 40km/h. More »
At first sight, this seems like a propeller about to get attached to an aeroplane engine. I thought the same until I looked closer. Then it blew my mind. Zoom in and discover why.
Back in the October 1955 edition of Mechanix Illustrated, readers got a glimpse of their automotive future that never was. The Argentine Aerocar eschewed the normal automotive design for GIANT PROPELLER BLADE technology.
We’ve seen some cool POV display setups in the past, like this bicycle spoke Obama propaganda message, but I don’t recall one that could both amaze a person and take their limbs off at the same time. Called the “Display from Hell,” that’s pretty much what this thing does, all while projecting POV images using 100 blue SMD LEDs. The propeller, which spins at 225kph and is both huge and terrifying, was apparently rigged up for a party. A very dangerous party. From hell. [Hackaday, thanks Joao!]
