Gearfuse

That’s right. The next time you go to the bar and order a tall, cold Sierra Nevada (sponsor us!), drink it knowing that it’ll not only get you drunk but also that your efforts are not in vain. The California-based brewing company unveiled an initiative to convert beer waste into ethanol that can be used to power certain vehicles. Yeast, sugar and water are used in conjunction with an EFuel 100 Microfueler. This ensures that nothing is wasted. Get it? Wasted? Just drink the damn beer and be happy.

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At Gearfuse, we’re all about world firsts. World’s first person to not shit after drinking a gallon of prune juice or world’s first ninja dog are the kinds of world firsts we’re used to seeing. How about the world’s first energy generating revolving door?

That’s the idea behind this revolving door built by Boon Edam. It harvests the kinetic energy of a crowd of people passing through a door. This simple action is expected to generate around 4600 KWH of energy each year, which is plenty of energy considering the source. Stick one of these doors in a Walmart during the Christmas season and you’ll generate enough energy to power the entire city of Los Angeles.

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The world’s first ever wave farm went live at the end of September in Agucadoura, off the coast of northern Portugal. Three wave energy converters resembling Soviet submarines generate electricity with hydraulic rams driven by waves. The farm was designed by Pelamis Wave Power, which hopes to increase the farms productivity by adding an additional 25 wave energy converters that could potentially power 15,000 homes.

Waves powering homes? Remarkable, but how does it work?
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