The people who brought the world the first hydrogen powered passenger train, have a new dual-mode solution which makes e

Small scale wind isn't very popular for residential applications. But a new turbine which mimics the natural spiral design of a nautilus shell might soon provide an alternative to solar. It claims to be quieter but also very efficient, such that one turbine can produce 1,500kwh/annum. In Sydney, an average household (2.4 persons) consumes about 5,200kwh/annum.https://newatlas.com/the-archimedes-liam-f1-urban-wind-turbine/32263/

Basalt is the most common volcanic rock on the planet. A new geoengineering study has considered the impacts of adding basalt to large expanses of soil so that the natural process of carbon sequestration (CCS) can be sped up significantly. Other benefits are increased crop yields, better drought resilient soils, reduction in acidity (especially in the oceans from run-off), additional revenue streams for farmers (carbon credits) and scalability at costs competitive with other CCS tactics (other than re-forestation - which isn't possible at scale in all soil types/locations).https://physicsworld.com/a/sprinkling-basalt-over-soil-could-remove-huge-amounts-of-carbon-dioxide-from-the-atmosphere/

None of us can see well in the dark, but as we age the risks of tripping or falling in the dark increases. Our spatial awaren

Thanks to researchers at the UNSW Engine Research Laboratory, it seems a dual-fuel diesel-hydrogen engine is possible.At the moment, if you want to convert your diesel fleet to hydrogen, you need to swap out the entire engine with a hydrogen fuel cell option.Do-able, but more expensive than keeping the original diesel injection engine but adding a hydrogen fuel injection unit. With stratification the blend produces less nitrogen-oxide emissions than normal diesel, about 85% less carbon and operates at about 26% greater efficiency.https://hydrogen-central.com/new-system-retrofits-diesel-engines-run-90-per-cent-hydrogen/

Solid state batteries don't over-heat or catch on fire, they operate even when damaged & tolerate a range of temperatures.Importantly for e-aviation, they can be stacked on top of each other without casings, making them lighter than lithium-ion alternatives.Unfortunately, they discharge their power slowly. That is not ideal if you need to rapidly increase power consumption, such as when applying thrust.But NASA researchers have managed to increase their solid-state battery’s discharge rate by a factor of 10 – and then by another factor of 5 - in the last year.  https://www.nasa.gov/aeroresearch/nasa-solid-state-battery-research-exceeds-initial-goals-draws-interest