New tandem perovskite-silicon solar cell breaks efficiency record

The use of solar photovoltaic cells as a renewable energy source is booming, as the technology becomes more efficient and less expensive. Stacking perovskite solar cells on top of silicon ones is one way to increase the amount of sunlight harnessed, an… Continue reading New tandem perovskite-silicon solar cell breaks efficiency record

Row Your Bike To China

If you’re a fan of endurance racing motor vehicles, there’s one that puts the 24 Hours of Le Mans, the Dakar Rally, and the Baja 1000 to shame, and the race doesn’t even involve cars. Indeed, the vehicles used for this massive trek from France to China are electric bicycles, powered only by solar panels. This is the epic Sun Trip endurance race, and one of its competitors built a unique tandem bike that is powered both by pedaling, rowing, and the solar panels.

The tandem bike is interesting on its own since the atypical design uses a back-to-back layout …read more

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