Science - Making Light Stand Still - real stuff

All these advances would make me nervous if I was planning on investing millions to build the current version of solar cells or car batteries. Feels like new tech is going to make lithium batteries and silicon cells obsolete in the next 1 - 3 years.

 

Flying electric cars can't be far away

 

I know a fishing guide that put these on his boat and he said he increased his fuel miileage from 1.8 mpg to 2.4 mpg. More than the 20% noted in this article. Still very expensive for boats but they work well to reduce drone noise too

Only a matter of time before these are on airplanes

Toroidal propellers: A noise-killing game changer in air and water

These strangely-shaped twisted-toroid propellers look like a revolutionary (sorry) advance for the aviation and marine sectors. Radically quieter than traditional propellers in both air and water, they're also showing some huge efficiency gains.

Propellers are designed to take a fluid, generally air or water, and use a rotating motion to push that fluid through. They're evolutions, in a sense, from the Archimedes' screw, which was likely used in ancient Egypt thousands of years before it was described by Archimedes in 234 BCE

 

First saw them on 60 minutes special on drone services delivering blood and other medical devices in Africa. Not sure how sensitive the mics were but they were 30' or so from drones landing with no noticeable noise

 

these materials advances are going to change the world. Materials, along with computing, energy, and medical, all seem to be on the precipice of massive revolution over the next decade.

 

China has succesfully deployed a floating platform that used wind and solar energy to convert seawater directly to hydrogen with 99.9% purity without having to desal it first. Big step to truly green hydrogen. Only a 10 day run but an impressive proof of concept

How a floating hydrogen farm has moved China closer to clean renewable energy (msn.com)

“It successfully completed a 10-day continuous operation during its inaugural run in May, marking a promising start to the prospect of offshore hydrogen production powered by renewable energy,” state news agency Xinhua reported on June 3. The 63 square metre (678 sq ft) platform combines a hydrogen production system with a stable offshore wind power supply system. By combining the two components, the researchers created an environmentally friendly floating farm that electrolyses seawater into hydrogen without creating undesirable side effects or pollution.
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Moreover, with no need for desalination, the platform offers a cost-effective alternative to current industrial production. The technology costs as little as 11.2 yuan (US$1.57) per kilogram (2.2 pounds) of hydrogen – much less than the current mainstream cost of hydrogen production from natural gas, which ranges from 20 to 24 yuan per kilogram.

Xie said the team would now look to upscale their achievement.

“We have successfully integrated offshore renewable energy and achieved desalination-free electrolysis of seawater in the real and complex ocean. Our team plans to develop a more efficient hydrogen production system that can withstand interference, and promote its industrialisation with global companies,” Xie said.

 

Article is long on words and short on info.

Will they be using limited groundwater for this? Building solar for power?
What tax breaks?

Glad to see hydrogen but the cheapest, greenest hydrogen is going to come from extraction directly from seawater using solar/wind to do it.