Hasta La Gadget!

YikeBike unveils less-expensive folding electric bike, Jackie Chan dons celebratory tuxedo originally appeared on Engadget on Sun, 15 May 2011 12:12:00 EDT. Please see our terms for use of feeds.

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Each week our friends at Inhabitat recap the week’s most interesting green developments and clean tech news for us — it’s the Week in Green.

Several breakthroughs sent shock waves through the field of renewable energy this week as Inhabitat reported on a new type of “invisibility cloak” that could supercharge solar cells and researchers at MIT harnessed viruses to improve the efficiency of dye-solar cells by a full third. We also cast a keen eye on the royal wedding, which is expected to produce 6,765 tons of CO2, and we explored a new wireless charging technology being developed by Toyota and WiTricity. And if futuristic eco cities float your boat, check out this self-sustaining ecotopia designed to produce energy and food in the North Sea.

We also showcased several novel electric vehicles, including the crazy Uno 3 transforming scooter which is now available for pre-order. Alternative fuels also took off as a Kentucky man unveiled a car that runs on bourbon and a mobile greenhouse powered by renewable energy hit the streets of New York City. And from the realm of pedal-powered transportation we brought you the SplinterBike – a bicycle made entirely from wood that can hit a record-breaking 30 miles per hour.

In other news, energy-efficient lighting advanced by leaps and bounds this week as we flipped the switch on IKEA’s new solar-powered Solvinden lamp and we spotted a crystalline “Stardust” LED lamp made from sugar at the Milan Furniture Fair. Finally, we shined a spotlight on Katy Perry’s debut on American Idol as a LED-studded Extraterrestrial, and we took an exclusive look inside New York City’s first LEED gold skyscraper – the Hearst Tower!

Inhabitat’s Week in Green: sugar-covered lamps, IKEA’s solar lamp, and the 30MPH all-wood racing bike originally appeared on Engadget on Sun, 01 May 2011 22:00:00 EDT. Please see our terms for use of feeds.

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So Philliebot was a fail, but this chainless bicycle serves as proof that UPenn doesn’t always come up short. The Alpha Bike, designed by a group of engineering students, contains an entirely internal drivetrain that allows riders to switch between fixed-gear and multi-gear setups. The simple switch is enabled by an electronically controlled clutch, part of the Switchable Integrated Free-Fixed Transmission (SWIFT), discreetly hidden in the bike’s frame. Populating the front hub are a drum brake and a dynamo, which juices the bike’s electronics — the back hub contains a three-speed gear set, put in motion by a simple push-pull cable. When the front wheel starts rolling, an LED screen mounted in the carbon fiber handlebars is illuminated, displaying time, cadence, and speed, among other things — this data and more is stored on an accessible SD card. As of now, the bike is still a prototype, but if you start saving now, you might actually have enough scratch to buy one when it comes to fruition.

Alpha Bike concept: free-wheeling fixie for flip-floppers originally appeared on Engadget on Fri, 29 Apr 2011 09:06:00 EDT. Please see our terms for use of feeds.

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We’ve peered back in time to the early days of the universe, just following the Big Bang, and unraveled the mysteries of the human genome — yet we don’t really know how a moving bicycle manages to stay upright without a meatbag manning the handlebars. Scientists have long thought that it had something to do with the gyroscopic effect created by the spinning wheels and the caster effect of having the front wheel trail the steering axis (don’t worry, it’s all explained in a video at the source link). Researchers at Cornell, however, have created a tiny bike that generates neither of those effects yet, thanks to carefully calibrated mass distribution, still stays vertical when moving over 5MPH. The insights learned here could lead to self-stabilizing rides for us and cooler wheels for our pedal-happy automatons to inherit. PR after the break.

Continue reading Scientists unlock the secrets of bike stability, make riders optional

Scientists unlock the secrets of bike stability, make riders optional originally appeared on Engadget on Fri, 15 Apr 2011 12:41:00 EDT. Please see our terms for use of feeds.

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Okay, so you’ll probably still look like a circus bear on a penny-farthing when you hop on the YikeBike, but with the introduction of the new extender battery backpack, you won’t have to stop every six miles to juice up. You heard right, this otherwise inconspicuous knapsack is actually packing a second YikeBike battery, which can be hooked up directly to the collapsible bicycle to keep you riding for another six miles — and if you like riding high on a tiny bike for long distances, it’s got room for more than one. So go crazy, pack this thing full of batteries and hit the road, but if your keister starts smartin’, don’t say we didn’t warn you. You can get your YikeBike juice on for $229 at the source link below.

YikeBike extender battery backpack keeps you riding in, um, style for six more miles originally appeared on Engadget on Sat, 12 Mar 2011 23:57:00 EDT. Please see our terms for use of feeds.

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