

Image via Red Ferret
We love random human-powered vehicles. The weirder the better, at least most of the time, because it stirs up creativity and hopefully gets people out and about without the use of fossil fuels or coal powered electricity. Plus exercise is always a good thing.
When water from the shower, dishwasher, or washing-machine is drained into the sewer-pipes, it's not just a waste of water, but a waste of the energy used to heat that water.

Image via Essential Gear
Solar powered flashlights are great, but you have to wait for a charge. Pull-cord flashlights are great but you have to work for a charge. But what about one that combines both so if you're short on light or short on energy, you still get a charge?

Photo via Science Daily, Credit: Frank Wojciechowski
Princeton University engineers have come up with a rubber film that harvests kinetic energy. But it's not just another piezoelectric film. The team has been able to combine silicone and naonoribbons of lead zirconate titanate (PZT).

Image via Convergence Tech
That's what Pedal-A-Watt wants you to pay in order to generate 250 watts of pedaled energy. But unless you regularly hook up your bike to a stationary stand in order to get some exercise, this is not exactly an eco-friendly option for how to generate a little charge.

Images via Yanko Design
Ahhh...another kinetic energy concept design. This time, designers Hyun Joo Lee & Eu Tteum Lee have put a flash light in the handle of a jump rope so you can skip your way to a brighter life.