Lifeboat Foundation

A lithium-ion battery that is safe, has high power and can last for 1 million miles has been developed by a team in Penn State’s Battery and Energy Storage Technology (BEST) Center.

Electric vehicle batteries typically require a tradeoff between safety and energy density. If the battery has high energy and power density, which is required for uphill driving or merging on the freeway, then there is a chance the battery can catch fire or explode in the wrong conditions. But materials that have low energy/power density, and therefore high safety, tend to have poor performance. There is no material that satisfies both. For that reason, battery engineers opt for performance over safety.

“In this work we decided we were going to take a totally different approach,” said Chao-Yang Wang, professor of mechanical, chemical and materials science and engineering, and William E. Diefenderfer Chair in Mechanical Engineering, Penn State. “We divided our strategy into two steps. First we wanted to build a highly stable battery with highly stable materials.”

LUXEMBOURG (Reuters) — Luxembourg abolished fares for trains, trams and buses on Saturday in what the government said was a bid to tackle road congestion and pollution, as well as supporting low earners.

The fact that self-driving trucks did not initially capture the public imagination is perhaps not entirely shocking. After all, most people have never been inside a truck, let alone a self-driving one, and don’t give them more than a passing thought. But just because trucks aren’t foremost in most people’s thoughts, doesn’t mean trucks don’t impact everyone’s lives day in and day out. Trucking is an $800 billion industry in the US. Virtually everything we buy — from our food to our phones to our furniture — reaches us via truck. Automating the movement of goods could, therefore, have at least as profound an impact on our lives as automating how we move ourselves. And people are starting to take notice.

As self-driving industry pioneers, we’re not surprised: we have been saying this for years. We founded Kodiak Robotics in 2018 with the vision of launching a freight carrier that would drive autonomously on highways, while continuing to use traditional human drivers for first- and last-mile pickup and delivery. We developed this model because our experience in the industry convinced us that today’s self-driving technology is best-suited for highway driving. While training self-driving vehicles to drive on interstate highways is complicated, hard work, it’s a much simpler, more constrained problem than driving on city streets, which have pedestrians, public transportation, bikes, pets, and other things that make cities great to live in but difficult for autonomous technology to understand and navigate.

Some forms of autonomous vehicle watch the road ahead using built-in cameras. Ensuring that accurate camera orientation is maintained during driving is, therefore, in some systems key to letting these vehicles out on roads. Now, scientists from Korea have developed what they say is an accurate and efficient camera-orientation estimation method to enable such vehicles to navigate safely across distances.

A fast camera-orientation estimation algorithm that pinpoints vanishing points could make self-driving cars safer.

John Wallace

Continue reading “Novel camera calibration algorithm aims at making autonomous vehicles safer” »

Adversarial attacks against the technique that powers game-playing AIs and could control self-driving cars shows it may be less robust than we thought.

Tesla Model Y deliveries draw closer and the Cybertruck appeals to police. When is a 600-mile Model S arriving? It’s Musk Reads: Tesla Edition #146.

A version of this article appeared in the “Musk Reads” newsletter. Sign up for free here.

Turbulence is everywhere—it rattles our planes and makes tiny whirlpools in our bathtubs—but it is one of the least understood phenomena in classical physics.

Turbulence occurs when an ordered fluid flow breaks into small vortices, which interact with each other and break into even smaller vortices, which interact with each other and so-on, becoming the chaotic maelstrom of disorder that makes white water rafting so much fun.

But the mechanics of that descent into chaos have puzzled scientists for centuries.

https://youtube.com/watch?v=74VfCw1FE2s

The Citroën Ami is a tiny electric vehicle made for city driving.

WASHINGTON — SpaceX is proposing a significant increase in launch activity in Florida over the next few years, including missions to polar orbits and those that will require the use of a new vertical payload integration tower.

The Federal Aviation Administration’s Office of Commercial Space Transportation published a draft environmental assessment Feb. 27 regarding SpaceX launch activities from both Launch Complex 39A at the Kennedy Space Center and Space Launch Complex 40 at neighboring Cape Canaveral Air Force Station. The assessment, the FAA said, will be used in new or modified commercial launch licenses for Falcon 9 and Falcon Heavy vehicles from those sites.

One reason for the assessment, the report states, is “SpaceX’s launch manifest includes more annual Falcon launches and Dragon reentries than were considered in previous [environmental] analyses.” SpaceX performed 11 launches from LC-39A and SLC-40 in 2019 and 15 in 2018, the most any one year to date.