Germany has opened the first three-mile stretch of a bicycle highway that will eventually span over 62 miles, connecting 10 western cities including Duisburg, Bochum, and Hamm, as well as four universities. And this highway is an entirely separate roadway that will remain completely car-free.
Category: transportation
Taiga Motors is one of the rare companies working to bring to market an all-electric snowmobile, which is actually a segment of transportation that desperately needs cleaner solutions.
The startup is unveiling today its new lineup of electric snowmobiles with some impressive specs.
With little to no standards and many two-stroke engines, current gas-powered snowmobiles are generally incredibly polluting – sometimes 50 times more polluting than an average car. People operate the machines to experience the great outdoors and it’s a shame to have to pollute your environment to do it.
Atomtronics manipulates atoms much in the way that electronics manipulates electrons. It carries the promise of highly compact quantum devices which can measure incredibly small forces or tiny rotations. Such devices might one day be used to monitor Earth’s status by sensing water levels in the desert or in the search for minerals and oil. They will also be used in navigation, when GPS fails on planes or ships due to malicious attacks or simply because it is not available, e.g. in the deep seas. They might also one day act as portable quantum simulators solving complex computational tasks.
Coherent atomtronics manipulates atoms in the form of matterwaves originating from Bose-Einstein condensates (a state of matter in which all the atoms lose their individual identity and become one single quantum state with all the atoms being everywhere in the condensate at the same time). The atoms in these matterwaves behave much more like waves rather than individual particles. These matterwaves can be brought to interfere and thus made to respond to the tiniest changes in their environment such as the difference in gravitational pull between light organic material and heavy iron ore. When compared to light, atoms can be 10 billion times more sensitive, e.g. to rotation or acceleration, when compared to the photons that make up light. This sensitivity depends on the measurement time and—just like Newton’s apple—atoms fall due to Earth’s gravity. This forces the most sensitive interferometers to be very tall, reaching 10 meters and in some cases even 100 meters.
https://youtube.com/watch?v=9iZY5IMn0wg
Volkswagen built its ID.R with the intention of showing what the heads in its electric drive division are capable of, and it only took a few months after its unveiling for the zero-emission race car to claim a record at the iconic Pikes Peak. The twin-motor electric racer has now built on this with yet another momentous showing, this time at Nürburgring-Nordschleife, where it has broken the lap record for electric vehicles by a whopping 40.564 seconds.
As anyone who has purchased jewelry can attest, platinum is expensive. That’s tough for consumers but also a serious hurdle for a promising source of electricity for vehicles: the hydrogen fuel cell, which relies on platinum.
Now a research team led by Bruce E. Koel, a professor of biological and chemical engineering at Princeton University, has opened a door to finding far cheaper alternatives. In a paper published April 4 in the journal Nature Communications, the researchers reported that a chemical compound based on hafnium worked about 60 percent as effectively as platinum-related materials but at about one-fifth the cost.
“We hope to find something that is more abundant and cheaper to catalyze reactions,” said Xiaofang Yang, principal scientist at HiT Nano Inc. and visiting collaborator at Princeton who is working with Koel on the project.
Researchers at Oregon State University have found that a chemical mechanism first described more than two centuries ago holds the potential to revolutionize energy storage for high-power applications like vehicles or electrical grids.
The research team led by Xiulei (David) Ji of OSU’s College of Science, along with collaborators at the Argonne National Laboratory, the University of California Riverside, and the Oak Ridge National Laboratory, are the first to demonstrate that diffusion may not be necessary to transport ionic charges inside a hydrated solid-state structure of a battery electrode.
“This discovery potentially will shift the whole paradigm of high-power electrochemical energy storage with new design principles for electrodes,” said Xianyong Wu, a postdoctoral scholar at OSU and the first author of the article.