What operating system did Linus Torvalds use while developing Linux?

Development was done on MINIX using the GNU C compiler

MINIX seems to be the OS used by the Intel Management Engine that’s embedded inside all modern Intel CPU’s and is basically its own system that “oversees” all activity on the PC.

Source: Paul Serdiuk’s answer to What operating system did Linus Torvalds use while developing Linux? – Quora

Jurassic rock reveals 180 million-year-old ammonite fossils

 

As a young boy Sy Donne found what he thought was a fairly ordinary rock on a beach south of Whitby. But it wasn’t until he was tidying up his house 35 years later that he decided to crack it open.

To his amazement, the salesman found beautiful ammonite fossils from the Jurassic period.

The ancient sea creatures sported a ribbed spiral-form shell, and lived between 240-65 million years ago, when they were wiped out along with the dinosaurs.

This fossils are believed to be around 180 million years old and could be worth around $3000 (£2,200), although Mr Donne says it’s not for sale.

Source: https://www.dailymail.co.uk/sciencetech/article-5453913/A-180-million-year-old-Jurassic-rock-reveals-ammonite-fossils.html