You read about VW’s transparent factory (below); now take a look at Mercedes’s invisible car. Mercedes-Benz’s new zero-emission F-Cell car is being marketed as a vehicle that is virtually invisible to the environment. The reason is because it runs on hydrogen fuel cells that convert compressed hydrogen into electricity to power the motor. The only emission is water vapor. To promote this fact in a memorable way, Mercedes blanketed one side of the car with LEDs and mounted a Canon 5D Mark II camera on the other side. The LEDs displayed whatever the camera filmed, causing passersby to stop and gawk at the “invisible” car.
Designed and built by Ethan Frier and Jonathan Ota, two industrial design students at Carnegie Mellon University, Project Aura is an ingenious solution for making bicyclists more visible at night. That’s the time of day when most bicycle fatalities occur. Thirty-six percent of these accidents happen at intersections. One reason is that while many bikes are equipped with headlights, taillights and reflectors, they aren’t very visible from the side – which means they can be clobbered at intersections or nicked from cars changing lanes without seeing them. Frier and Ota addressed that by installing RGB LEDs inside the rim of the wheels, and made them powered by a wheel dynamo that worked through pedaling. Not only are the lights visible from all sides, they respond to speed of motion, making the wheel lights change from white when at cruising speed to red when slowing down. The rim-mounted LEDs are self-powered (no batteries, motor or switches required), and can be seen from passing vehicles – a great safety idea for cyclists and a relief to motorists – plus they looked really sci-fi cool.