Superconductivity switches on and off in 'magic-angle' graphene
phys.org
phys.org
It makes me sad to keep reading all these stories about what an awesome thing Graphene and Carbon Nanotubes are, then never seeing anything actually happen, in real life.
I have to assume that is because it is impossible to manufacture these materials at any reasonable scale.
I worked on Graphene back in 2006 and it has been the 18m away from revolutionising everything ever since. The lack of a reliable, precise, bulk, manufacturing process means so much of these results are basically just theoretical.
:(
I would not be surprised if some of this knowledge has already found applications in use now like designing better photodetectors, or applying a better understanding of cooper pairs to improve commercial superconductors. A product does not necessarily have to contain graphene or have graphene in its name to have benefited from this line of research.
And there's definitely awareness about nanoparticles, as well as benzene and polycyclic aromatic hydrocarbons that there was not when asbestos was in full swing.
https://www.runningxpert.com/en/inspiration/best-inov8-runni...
https://shop.suninhouse.eu/gb/graphene-ir-heating-films/22-g...
Concretene is 30-50% stronger than standard RC30 concrete and does not require steel reinforcement, meaning significantly less material is needed to achieve the equivalent structural performance. Although the material is more expensive to produce (approximately 5% additional cost), the reduced amount of Concretene results in 10-20% overall cost saving for the end customer.https://elecjet.com/products/apollo-traveller-graphene-usb-c...
https://www.indiegogo.com/projects/ultron-most-powerful-wire...
Sort of like using a UPS unit as a doorstop. Looks fancy, but maybe not its most effective implementation.
Maybe like the "Truffle Oil" industry: https://www.tasteatlas.com/truffle-industry-is-a-big-scam
And, as far as I know, I am not living under a rock. Thanks for the suggestion, though.
Concretene is 30-50% stronger than standard RC30 concrete and does not require steel reinforcement, meaning significantly less material is needed to achieve the equivalent structural performance. Although the material is more expensive to produce (approximately 5% additional cost), the reduced amount of Concretene results in 10-20% overall cost saving for the end customer.Like I said, it looks like the only thing that is being done, is that they are using graphene to add a bit more tensile strength. I suspect that there are other materials that would work just as well (or maybe better). It's probably not the "killer feature" for graphene.
Reminds me of this old The Onion story: https://www.theonion.com/bantu-tribesman-uses-ibm-global-upl...
The concrete slab was setting so fast, and so strong, that the builders had begun gliding polishing machines over the driest part of the floor while their colleagues were still pouring the other end of the rink.
"Normally, you'd have to wait a week before you could do that," he says. The installation, in October last year, took less than a day.
"By adding as little as 0.1% graphene into cement and aggregate, you can potentially use less material to get the same performance," explains Mr Baker. Reducing the amount of concrete used in construction for instance by 30%, could lower global CO2 emissions by 2-3%, he estimates
Your comment would be just fine without that bit.
It is a disservice to the community to downplay the relevance of graphene.
Modern building and urban infrastructure construction are among the largest consumers of raw materials globally, with cement and concrete manufacturing alone responsible for approximately 8% of the anthropogenic CO2 emissions globally. https://www.azonano.com/article.aspx?ArticleID=6360
Also, there is one of you but thousands of rest-of-us (i.e. readers), so your comment will have a statistical distribution of responses. Most people won't have any problem but inevitably, some tail of the bell curve gets activated, and this segment is by far the most likely to reply. This is how we end up with seriously degraded threads under relatively mild provocation.
It's true that HN's rules come (sadly) at the cost of making things more bland (https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu...). But it's a mistake to think there's a viable alternative to that cost, because you can't allow for the creative/interesting/lively kind of swipe without opening the gates of flamewar hell. If you have a small, cohesive group, that kind of thing can work*, but not on a large open internet forum. So we're all stuck with having to err on the neutral side.
* I like the analogy of rugby: https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...
I mean, the theory of relativity came out in 1905, and applications might have taken 70 or 80 years and only in small ways.