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Stunning discovery: Metals can heal themselves
Microscopic cracks vanish in experiments, revealing possibility of self-healing machines
https://newsreleases.sandia.gov/healing_metals/
Discussion: https://news.ycombinator.com/item?id=36822530

Scientists witnessed pieces of metal crack then fuse together w/o human intervention.
Could result in self-healing engines, bridges & airplanes.

Autonomous healing of fatigue cracks via cold welding
https://www.nature.com/articles/s41586-023-06223-0

#SandiaNationalLabs #MaterialScience #ColdWelding #MetalFatique

‘Stunning’ discovery: Metals can heal themselves

ALBUQUERQUE, N.M. — Scientists for the first time have witnessed pieces of metal crack, then fuse back together without any human intervention, overturning fundamental scientific theories in

#Sandia #SandiaNationalLabs #Rocket #Boom #NewMexico

What to you think of when you think of a 'Dream Job'?

I'd trade the seat in my cubical for a job on this awesome team at Sandia Labs any day!

I'm wondering if their motto is "That Blew Up Real Good" in Latin. (Or does Huntsville Alabama already have dibs on that slogan?)

https://youtu.be/Ha2efdpdxU8

Rocket Sled Test in Slow Motion

YouTube

[Note: I am not sure if this is serious but it comes out of Sandia National Labs and it is not April 1st so I was willing to give it a go. They don't mention "blockchain" until 1/2 way down the abstract.]

T.-N. Dinh et al., "The Synchronic Web"¹

The Synchronic Web is a distributed network for securing data provenance on the World Wide Web. By enabling clients around the world to freely commit digital information into a single shared view of history, it provides a foundational basis of truth on which to build decentralized and scalable trust across the Internet. Its core cryptographical capability allows mutually distrusting parties to create and verify statements of the following form: "I commit to this information--and only this information--at this moment in time." The backbone of the Synchronic Web infrastructure is a simple, small, and semantic-free blockchain that is accessible to any Internet-enabled entity. The infrastructure is maintained by a permissioned network of well-known servers, called notaries, and accessed by a permissionless group of clients, called journals. Through an evolving stack of flexible and composable semantic specifications, the parties cooperate to generate synchronic commitments over arbitrary data. When integrated with existing infrastructures, adapted to diverse domains, and scaled across the breadth of cyberspace, the Synchronic Web provides a ubiquitous mechanism to lock the world's data into unique points in discrete time and digital space.

#arXiv #ResearchPapers #SandiaNationalLabs #SynchronicWeb #Blockchain
__
¹ https://arxiv.org/abs/2301.10733

The Synchronic Web

The Synchronic Web is a distributed network for securing data provenance on the World Wide Web. By enabling clients around the world to freely commit digital information into a single shared view of history, it provides a foundational basis of truth on which to build decentralized and scalable trust across the Internet. Its core cryptographical capability allows mutually distrusting parties to create and verify statements of the following form: "I commit to this information--and only this information--at this moment in time." The backbone of the Synchronic Web infrastructure is a simple, small, and semantic-free blockchain that is accessible to any Internet-enabled entity. The infrastructure is maintained by a permissioned network of well-known servers, called notaries, and accessed by a permissionless group of clients, called ledgers. Through an evolving stack of flexible and composable semantic specifications, the parties cooperate to generate synchronic commitments over arbitrary data. When integrated with existing infrastructures, adapted to diverse domains, and scaled across the breadth of cyberspace, the Synchronic Web provides a ubiquitous mechanism to lock the world's data into unique points in discrete time and digital space.

arXiv.org