Astronuc

Practical engineering - a great video on railroad track (rails, ties and ballast) with emphasis on the rails - jointed vs continuous(ly) welded rail, the latter being standard on mainlines.

Reminder to self: https://www.physicsforums.com/threads/panini-sanskrit-grammar-and-linguistic.117724/

Since Russia now considers these territories its own, it also views its residents as Russians and has ordered the men to enlist to fight on the Kremlin’s side. Growing numbers of men between the ages of 18 and 35 are trying to escape to areas controlled by Kyiv.

https://www.msn.com/en-us/news/worl...-as-it-approaches-city-of-kherson/ar-AA12CloH

“Putin is not fighting against Ukraine or even against NATO. He's fighting against reality,” a former Putin speechwriter, Abbas Gallyamov wrote.
https://news.yahoo.com/putin-ukraine-kremlin-speech-west-195603211.html

4 Oct - NY Times - Russia's Small Nuclear Arms: A Risky Option for Putin and Ukraine Alike
https://www.yahoo.com/news/russias-small-nuclear-arms-risky-115633238.html
Opponents would have to respond in kind.

https://www.msn.com/en-us/news/worl...aders-as-battlefield-losses-mount/ar-AA12xY0H

For posterity and history

https://www.yahoo.com/news/mobilisation-russia-russian-orthodox-patriarch-113907193.html

https://apnews.com/hub/russia-ukraine

https://www.yahoo.com/news/time-come-top-putin-official-201022301.html

https://www.yahoo.com/news/russia-partners-china-india-expressing-004632510.html

https://apnews.com/article/russia-ukraine-moscow-referendums-dad270d8dccf8873ba7fe7758c387933

Note to myself - there are 2.7 x 10¹⁹ molecules in every cubic centimeter of air.
https://personal.ems.psu.edu/~bannon/moledyn.html

thanks
old jim