It has nothing to do with how hard he works, and everything to do with how he thinks.
Category: transportation – Page 477
Self-driving cars begin transporting groceries to Texas homes
First, there came self-checkout.
Now, it’s self-driving cars to make the delivery.
Two Kroger markets in Houston are rolling out a self-driving car program, in which orders can be placed online and delivered right to your home without a driver.
Tesla model Y first ride
Taking Tesla’s new Model Y for a test ride.
These concept tires could help cars fly
Goodyear has unveiled a new concept tire that would work as both a propeller for a flying car, and a regular tire https://cnn.it/2F6KBse
Super-fast engine set for key tests
The UK project to develop a hypersonic engine that could take a plane from London to Sydney in about four hours is set for a key demonstration.
The Sabre engine is part jet, part rocket, and relies on a novel pre-cooler heat-exchanger technology.
This pre-cooler system will begin a new phase of testing in the next month or so in Colorado, US.
Kiwano rolls out updated self-balancing monowheel electric scooter
When launched in 2017, the KO1 monowheel scooter – a kind of cross between a Segway and a Solowheel – offered a range of 20 miles and a top speed of 20 mph. The KO1+ has a very similar look to the original, but is quite a different animal.
Bugatti uses SLM Solutions additive manufacturing systems in component production
Sports car maker Bugatti (Molsheim, France) used SLM Solutions’ (Lübeck, Germany) metal additive manufacturing technology to produce automotive components. The components were manufactured in the aerospace alloy Ti6Al4V in cooperation with the Fraunhofer Research Institution for Additive Manufacturing Technologies (Fraunhofer IAPT; Hamburg, Germany) and Bionic Production (Lüneburg, Germany) on a SLM 500 selective laser melting system featuring four 400 W lasers.
A caliper test showed that additively produced metal components can cope with extreme strength, stiffness, and temperature requirements at speeds of over 375 km/h with a braking force of 1.35 g and brake disc temperatures up to 1100°C, says Frank Götzke, Head of New Technologies at Bugatti. The test also showed that a tensile strength of 1250 N/mm and a material density over 99.7% was achieved.
NASA Clears “Dream Chaser” Space Cargo Plane For Full-Scale Production
Watch out space, there’s a new commercial cargo carrier entering the race.
Sierra Nevada Corporation (SNC) has been given the go ahead from NASA to begin full-scale production of it’s “Dream Chaser” commercial space cargo plane. Scheduled to make its first mission in 2020, the company announced on December 18 that it had cleared the last milestone in its Commercial Resupply Services 2 contract. Now the company is able to move ahead with the full-scale production of the carrier which will be used to deliver cargo to the International Space Station (ISS).
Researchers develop ‘acoustic metamaterial’ that cancels sound
Boston University researchers, Xin Zhang, a professor at the College of Engineering, and Reza Ghaffarivardavagh, a Ph.D. student in the Department of Mechanical Engineering, released a paper in Physical Review B demonstrating it’s possible to silence noise using an open, ringlike structure, created to mathematically perfect specifications, for cutting out sounds while maintaining airflow.
“Today’s sound barriers are literally thick heavy walls,” says Ghaffarivardavagh. Although noise-mitigating barricades, called sound baffles, can help drown out the whoosh of rush hour traffic or contain the symphony of music within concert hall walls, they are a clunky approach not well suited to situations where airflow is also critical. Imagine barricading a jet engine’s exhaust vent—the plane would never leave the ground. Instead, workers on the tarmac wear earplugs to protect their hearing from the deafening roar.
Ghaffarivardavagh and Zhang let mathematics—a shared passion that has buoyed both of their engineering careers and made them well-suited research partners—guide them toward a workable design for what the acoustic metamaterial would look like.