Elon Musk has tweeted that Tesla will make a quiet electric leaf blower.
In 2017, the California Air Resources Board, said that by 2020, the biggest single ozone polluter in California is going to be all this gardening equipment.
California has 16 million gas-powered garden machines from leaf blowers to mowers.
Is our take on the next-generation tandem-duct platform. Flying up to 10 feet off the ground at 45 miles per hour, the Aero-X is a surface-effect craft that rides like a motorcycle — an off road vehicle that gets you off the ground.
The Aero-X can be adapted for a variety of uses: surveying, search and rescue, border patrol, disaster relief, agricultural, ranching, rural transportation and…
Because it responds to your movements just as a motorcycle would, the Aero-X is intuitive to fly. And as it is built with very few moving parts, its cost of ownership is a fraction of even the most basic airplane or helicopter.
Imagine that instead of adding a motor to a bicycle, parts of the bicycle are designed to function as the motor.
In this case the wheel rim contains the motor magnets and the frame houses the inductive coils. The inductive coils use energy from the battery (hidden in the frame downtube) to repel the magnets on the rim to make the wheel spin.
Lightweight calls this “Maglev Transrapid technology” and they claim that this Velocité eBike can go up to 100 kph (62 mph) with its 500 watts of power! They are currently limiting it to 45 kph (28 mph) to fall with in the limits of a speed pedelec.
Circa 2017
Researchers are looking at advanced materials for roads and pavements that could generate electricity from passing traffic.
Engineers from Lancaster University are working on smart materials such as ‘piezolectric’ ceramics that when embedded in road surfaces would be able to harvest and convert vehicle vibration into electrical energy.
The research project, led by Professor Mohamed Saafi, will design and optimise energy recovery of around one to two Megawatts per kilometre under ‘normal’ traffic volumes—which is around 2,000 to 3,000 cars an hour.
Circa 2015
I’m sure many of you have experienced that sinking feeling when you’re running out to your car to drive to work only to discover a flat tire. The cause: usually a nail your drove over the night before. It’s 2015, tires shouldn’t suffer punctures anymore, right? Well, they may not for much longer if this prototype tire from Japan makes it to mass production.
The tire is called Coreseal and it has been developed by Japanese company Sumitomo Rubber Industries Ltd. It looks like any other tire fitted on vehicles today, but it has one big advantage. If you drive over a nail and cause a puncture, the tire won’t deflate. In fact, it will repair itself and you’ll likely never know it happened.
While studying the chemical reactions that occur in the flow of gases around a vehicle moving at hypersonic speeds, researchers at the University of Illinois used a less-is-more method to gain greater understanding of the role of chemical reactions in modifying unsteady flows that occur in the hypersonic flow around a double-wedge shape.
“We reduced the pressure by a factor of eight, which is something experimentalists couldn’t do,” said Deborah Levin, researcher in the Department of Aerospace Engineering at the University of Illinois at Urbana-Champaign. “In an actual chamber, they tried to reduce the pressure but couldn’t reduce it that much because the apparatuses are designed to operate within a certain region. They couldn’t operate it if the pressure was too low. When we reduced the pressure in the simulation, we found that the instabilities in the flow calmed down. We still had a lot of the kind of vortical structure—separation bubbles and swirls—they were still there. But the data were more tractable, more understandable in terms of their time variation.”
Levin conducted the research along with her, then, doctoral student Ozgur Tumuklu, and Vassilis Theofilis from the University of Liverpool.
Hyundai’s Genesis unveils the Mint, its vision for a teeny electric luxury car. The concept vehicle is designed to be a “city car” that can squeeze through the narrow alleys and dense traffic of packed urban centers. https://cnn.it/2GrFSDv
The laser sensors currently used to detect 3D objects in the paths of autonomous cars are bulky, ugly, expensive, energy-inefficient – and highly accurate.
These Light Detection and Ranging (LiDAR) sensors are affixed to cars’ roofs, where they increase wind drag, a particular disadvantage for electric cars. They can add around $10,000 to a car’s cost. But despite their drawbacks, most experts have considered LiDAR sensors the only plausible way for self-driving vehicles to safely perceive pedestrians, cars and other hazards on the road.
Now, Cornell researchers have discovered that a simpler method, using two inexpensive cameras on either side of the windshield, can detect objects with nearly LiDAR’s accuracy and at a fraction of the cost. The researchers found that analyzing the captured images from a bird’s-eye view rather than the more traditional frontal view more than tripled their accuracy, making stereo camera a viable and low-cost alternative to LiDAR.