Motorcycles: Electric Bikes, Rocket Fuel, And The Possibility Of Disappointment - PressFrom - US
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MotorcyclesElectric Bikes, Rocket Fuel, And The Possibility Of Disappointment

21:35  21 may  2019
21:35  21 may  2019 Source:   cycleworld.com

Harley-Davidson is targeting the “next generation of riders” with electric bikes for kids

Harley-Davidson is targeting the “next generation of riders” with electric bikes for kids Harley is buying StaCyc, a company that makes electric bikes for kids. If that seems off-brand, it's because Harley is trying to expand its brand. The company has struggled to attract customers for its gas-guzzling “hogs” beyond Baby Boomer diehards, while also suffering from tariffs imposed by the EU in retaliation for duties introduced by the Trump administration. Harley expects to ship as few as 217,000 motorcycles in 2019, which would be the lowest total in eight years. It shipped 229,000 worldwide last year.

Electric Bikes, Rocket Fuel, And The Possibility Of Disappointment© Provided by Bonnier Corporation LiveWire electric motorcycle Yearning for a breakthrough that may never come

We know that around 1975 John B. Goodenough devised a workable rechargeable battery of high energy density based upon lithium ions. By 1992, the concept had been commercialized by Sony, and since then, with increasing intensity, hundreds of academic and commercial laboratories have striven night and day to be the first to create for electric vehicles a better battery that has it all.

Having it all means being affordable, free of high-priced materials, safe in operation, fast-charging, capable of producing large current, long-lasting, and able to store enough energy in a lightweight package to compete heads-up with the range and performance of vehicles powered by internal-combustion engines.

Harley Eyes Rental E-Scooter Market

Harley Eyes Rental E-Scooter Market Those rental e-scooters that show up around your neighborhood might have "HARLEY DAVIDSON" on the side soon. You might think that Harley Davidson tried to draw younger, sportier riders a decade and a half ago with the addition of the Buell line of bikes, but anyone who ever stepped into a Harley dealer to look at a Buell could tell the dealers weren’t committed to the change.

Many different electrode chemistries exist for the basic lithium-ion process, but no single one of them has yet achieved a “round” performance offering all of the listed desirable attributes.

One way to look at the future is to say, “Well, all these hundreds of labs have been hard at it for many years, so the big breakthrough will come any minute. We deserve it. All it takes is for some brilliant chemist to add a pinch of this or that and we’re home.”

On the other hand, I visited Avco-Everett’s carbon-fiber facility in 1976 and was handed a sample of “prepreg ply,” a layer of unidirectional carbon fibers already impregnated with the correct volume of epoxy to make multi-layer structures of enormous strength and stiffness. Yet Boeing’s 787 Dreamliner, its structure largely of carbon fiber, made its first commercial flight in October 2011—35 years later.

Evoke Introduces A New Electric Motorcycle

Evoke Introduces A New Electric Motorcycle We are living through an electric motorcycle revolution! The Electric Motorcycle Revolution marches on, friends! This time Evoke, an electric motorcycle manufacturer out of Beijing, is introducing a new cruiser model called the 6061. Their first model and entree into the electric motorbike world, the Urban Classic, is exactly what it sounds like: a naked roadster echoing the design characteristics of the Ducati Monster and the naked Suzuki SV650. The more electric motorcycles are created, the prettier they’re getting, in my estimation.

Since the 1990s, there has been discussion of the weight that could be saved on motorcycles by carbon composite structure, but a quarter-century later, the occasional exotic MotoGP carbon swingarm is all that has arrived. When aluminum swingarms appeared on factory motocrossers around 1975, it was 12 years before all-aluminum mainstream production motorcycle chassis rolled into showrooms.

Our expectations of what technology can give us result from fast changes in areas such as computing. We are impressed by social change caused by the coming of phones that are really pocket-sized computer terminals connected to “an internet of everything.” This tells us that technology can give us whatever we want and soon.

I was therefore fascinated to tear through the late John D. Clark’s little book Ignition!, which describes the intensity, creativity, and results of rocket-fuels research from the end of World War II to the mid-1960s. Military planners knew that any future world war would be decided by nuclear ICBMs, with results final in 20 minutes. Driven by that sharp spur, world governments poured treasure and resources into the development of rocket fuels that might give them Cold War leverage.

Zero Shows Off Prototype SR/F at London's Ace Cafe

Zero Shows Off Prototype SR/F at London's Ace Cafe We got the chance to see in person the new SR/F, and it's a real beast! Zero Motorcycles may be one of the most exciting new brands in the motorcycle world. Set on transforming the electric bike from concept artwork to reality, the California-based company has since 2006 been creating fast, great looking and well performing electric bikes, which are genuinely practical in the real world. Zero has been teasing the SR/F for a while now, but we got the chance to look at the new bike in person at London's Ace Cafe, at a Showcase held on Wednesday, April 10, 2019.

Chemists can compute the ideal energy yields of even quite complex fuel and oxidizer molecules. But it’s quite another thing to realize ideals in practice. Some fuels, such as powdered aluminum, burn too slowly to react completely before they leave the nozzle. Others failed to meet the services’ standards for storability or low freezing temperatures. Some compounds slowly deteriorated over time, generating gas that could burst storage containers. Little by little, useful combinations were discovered, but the exotic promise of super fuels kept research going, trying to create ultra-high-energy combinations based on boron, fluorine (it eats through glass), and even remarkably poisonous mercury. Standards were created to measure sensitivity; some fuels, especially monopropellants, detonated if poured, or if they touched dust, or from micro-cavitation. Countless thousands of compounds were proposed, produced in labs, tested, and, if possible, fired in research rocket engines. Micro-contamination of containers by trace elements led to terrible surprises. Researchers were injured or killed.

Honda Shows Off Its First Electric Motorcycle

Honda Shows Off Its First Electric Motorcycle and it's dirty!

At the same time, the US Air Force worked to develop range-extending boron-based fuels for gas turbines. One class of fuels showed promise, until its combustion product turned out to be a viscous material like melted glass, which plugged up the engines in which it was burned. There were explosions with no discoverable cause. Eventually the materials under study proved just too dangerous, and the program was ended.

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Here we are in 2019 with heavy rocket boosters still burning RP-1—a kind of standardized kerosene—and liquid oxygen, as in the Apollo program. Higher-performing engines burn liquid hydrogen and liquid oxygen, and the storable propellants are either conventional solids or based on good old nitrogen tetroxide and acids. In the mid-1960s, computer programs were run on mainframes to exhaustively grind through all possible chemistries. The result? The same compounds that had been discovered by conventional means, so many of which were too sensitive to be used.

There are other ongoing programs that have yet to succeed. One is thermonuclear fusion, a potentially unlimited power source. For much of my lifetime, I have read that, “The problem of controlled fusion will be solved within the next 50 years.” Another is the “room-temperature” superconductor, which would enable super-efficient electrical devices and lossless transmission of power. In each case, success would be of great benefit to humankind. We want success very much. We feel we deserve it.

This is not to say that a super battery with “round” qualities won’t be announced tomorrow. I have presented the above examples because they show it’s possible for some problems to resist solution for decades.

Triumph Is Building an Electric Motorcycle.
Just like Harley-Davidson and Ducati. The British motorcycle company Triumph has a new program for producing an electric bike. It's calling the research and development plan TE-1, and says that we can expect a powertrain in about two years, presumably with a production bike to follow. require(["medianetNativeAdOnArticle"], function (medianetNativeAdOnArticle) { medianetNativeAdOnArticle.

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