Anonymous ID: 467e35 Jan. 8, 2024, 8:09 p.m. No.20210714   🗄️.is 🔗kun   >>0719 >>0729

Bill Clinton spotted palling around with Calif. Gov Gavin Newsom at luxury Mexican resort as ex-prez back in spotlight after Epstein docs release

 

The luxury resort is located in Tamarindo, Mexico.

 

Jan. 8, 2024, 9:49 p.m. ET

https://nypost.com/2024/01/08/news/bill-clinton-spotted-with-calif-gov-gavin-newsom-at-mexican-resort/

Anonymous ID: 467e35 Jan. 8, 2024, 8:29 p.m. No.20210806   🗄️.is 🔗kun   >>0820 >>0840 >>0858

>>20210772

>Roman concrete

 

Riddle solved: Why was Roman concrete so durable?

An unexpected ancient manufacturing strategy may hold the key to designing concrete that lasts for millennia.

 

For many years, researchers have assumed that the key to the ancient concrete’s durability was based on one ingredient: pozzolanic material such as volcanic ash from the area of Pozzuoli, on the Bay of Naples. This specific kind of ash was even shipped all across the vast Roman empire to be used in construction, and was described as a key ingredient for concrete in accounts by architects and historians at the time.

 

Under closer examination, these ancient samples also contain small, distinctive, millimeter-scale bright white mineral features, which have been long recognized as a ubiquitous component of Roman concretes. These white chunks, often referred to as “lime clasts,” originate from lime, another key component of the ancient concrete mix. “Ever since I first began working with ancient Roman concrete, I’ve always been fascinated by these features,” says Masic. “These are not found in modern concrete formulations, so why are they present in these ancient materials?”

 

January 6, 2023

https://news.mit.edu/2023/roman-concrete-durability-lime-casts-0106

 

Hot mixing: Mechanistic insights into the durability of ancient Roman concrete

https://www.science.org/doi/10.1126/sciadv.add1602