Chinese scientists push lithium batteries up to a record 711 Wh/kg

Tesla’s 4680 cells, for comparison, measure somewhere between 244-296 Wh/kg. So the extreme-density cells recently tested in Beijing represent a huge leap forward from the status quo – even if they’re solely focused on maximizing a single metric.Contin… Continue reading Chinese scientists push lithium batteries up to a record 711 Wh/kg

GE resurrects the propfan aircraft engine, cutting fuel burn by 20%

GE once thought super-efficient propfans were the future of air travel, until low fuel prices in the late 1980s moved fuel consumption down the list of priorities. Now, it’s bringing them back with the CFM Rise, promising 20% fuel savings.Continue Read… Continue reading GE resurrects the propfan aircraft engine, cutting fuel burn by 20%

Whisper Aero claims radical advance in quiet, efficient electric jets

Whisper Aero says its electric aircraft propulsion systems are “20% more efficient and 100x quieter than anything else on the market.” They’re designed for drones, planes and possibly eVTOLs, and there’s also a funky-looking concept plane.Continue Read… Continue reading Whisper Aero claims radical advance in quiet, efficient electric jets

China’s record-breaking Mach 30 wind tunnel harnesses timed explosions

The Chinese Academy of Sciences (CAS) has announced that the world’s fastest hypersonic wind tunnel is up and running, a detonation-driven shock tunnel that’ll allow aerodynamic testing for aircraft, spacecraft and missiles at air speeds up to Mach 30…. Continue reading China’s record-breaking Mach 30 wind tunnel harnesses timed explosions

Nireeka’s beefy Mega ebike: So big it makes 4-inch fat tires look normal

Nireeka has added a monster fatty to its burgeoning line of eye-catching, but affordable carbon-framed ebikes. The new Mega lives up to its name with massive 26 x 4-inch beach and snow-worthy fat tires, dual suspension and a beefy 200-Nm (148-lb-ft), 1… Continue reading Nireeka’s beefy Mega ebike: So big it makes 4-inch fat tires look normal

Nireeka’s beefy Mega ebike: So big it makes 4-inch fat tires look normal

Nireeka has added a monster fatty to its burgeoning line of eye-catching, but affordable carbon-framed ebikes. The new Mega lives up to its name with massive 26 x 4-inch beach and snow-worthy fat tires, dual suspension and a beefy 200-Nm (148-lb-ft), 1… Continue reading Nireeka’s beefy Mega ebike: So big it makes 4-inch fat tires look normal

World’s first space factory, now in orbit, is also a hypersonic test bed

California startup Varda has celebrated the deployment of its first satellite, a test run of a fascinating space-based pharmaceuticals factory that moonlights as a hypersonic test rig during its Mach 25 re-entry to keep costs down.Continue ReadingCateg… Continue reading World’s first space factory, now in orbit, is also a hypersonic test bed

Interview: Lilium’s Daniel Wiegand on its eVTOL plans and progress

On a recent trip to Europe, I got in touch with the Lilium team and asked if I could come visit the company HQ outside Munich. On late notice, thanks to my slapstick organisational skills, the team went out of their way to pull together a full afternoo… Continue reading Interview: Lilium’s Daniel Wiegand on its eVTOL plans and progress

CycloTech reveals outdoor noise level from its CycloRotor propellers

Having received permission from Austrian authorities to begin outdoor flight testing on its remarkable CycloRotor-propelled technology demonstrator, CycloTech has announced noise testing results for its 360-degree thrust vectoring propulsion barrels.Co… Continue reading CycloTech reveals outdoor noise level from its CycloRotor propellers

“Walking” anchor and plasma drill promise cheap, deep geothermal power

The intense heat under the Earth’s surface represents a virtually inexhaustible source of reliable clean energy that would be available 24/7 from anywhere on Earth – you could pull it up as steam to run generator turbines, or pipe it directly into dist… Continue reading “Walking” anchor and plasma drill promise cheap, deep geothermal power